CN108387464A - A kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression - Google Patents
A kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression Download PDFInfo
- Publication number
- CN108387464A CN108387464A CN201810059822.5A CN201810059822A CN108387464A CN 108387464 A CN108387464 A CN 108387464A CN 201810059822 A CN201810059822 A CN 201810059822A CN 108387464 A CN108387464 A CN 108387464A
- Authority
- CN
- China
- Prior art keywords
- compression
- rod piece
- support
- double
- tension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/317—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electromagnetism (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application discloses a kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression, including：Electromagnetic drive coil array transmitter, including：The more coiling arrays of light-operated multistage, transmitting pipeline, cylindrical bullet, charging and discharging circuit and shell；Tension and compression bilayer beam device includes：Compression experiment rod piece, stretching experiment rod piece and double layer support part；Compression experiment rod piece includes：Compress incident bar, compression transmission bar and compression rod piece centering adjustable sleeve；Stretching experiment rod piece includes：It stretches transmission bar, stretch incident bar, bearing ring and extension rod piece centering adjustable sleeve.The reluctance type tension and compression bilayer Hopkinson lever system of the application, a set of ballistic projections device is eliminated on the whole, use double-layer structure, to reduce device volume, coil parameter and layout are optimized in structure, both it avoids the decelerating effect of vortex decelerative force and improves energy transformation ratio, the bullet of functionally compatible different length can be used for generating the stress wave of more width.
Description
Technical field
The present invention relates to the technical fields of dynamic impulsion, more particularly, to a kind of double-deck miniature Hope of reluctance type tension and compression
The gloomy lever system of gold.
Background technology
Traditional pneumatic type Hopkinson lever system, mainly by platform support, gas chamber and transmitting pneumatic mechanism, incident bar/
Transmission bar/absorbing rod, confining pressure pneumatic device, ultra dynamic strain high-speed data acquisition instrument and mating special Hopkinson pressure bar are surveyed
The compositions such as analysis software are tried, stress-strain characteristics of the test material under dynamic strike state are used for and are obtained in this strain rate
Under stress-strain diagram.In recent years, with the fast development of material science, especially new material forming technique with plus
After work technique emerges one after another, these new materials are widely used in the fields such as automobile, building, aviation, and these new materials are being applied
In be frequently encountered the effect of shock loading, therefore dynamic mechanical response of the new material under impact loading is for weighing
One important indicator of material property.Meanwhile with the development of 3D printing technique, the life of various metals or nonmetallic microstructure
Producing becomes to be more prone to, and is increasingly used for energy-absorbing and structural weight reduction etc..Therefore it provides a set of light and handy simple and practical
Material dynamic mechanical performance measurement device be to have very much demand.
Currently, the main still split hopkinson bar technology of the device of material dynamic mechanical performance study, this technology
Proposition have over one hundred year away from the present, loading scheme is most important to be still compressed gas big gun driving bullet.It is made using the technology
Hopkinson bar compression or stretching device, while having the function of load and measurement.Dynamic compression is done to material and dynamic is drawn
When stretching experiment, generally require to carry out on Hopkinson bar compression test device and Hopkinson bar tensile test device respectively,
But the cost of use of two complete equipments it is expensive, it is complicated, the characteristics such as take up a large area, be cumbersome and just significantly limit it
Development.
In publication number：CN101666724A and publication number：It is all used in the Chinese patent of CN101504326A a kind of double
The conversion stretched with compression experiment is realized to transmitting gas-gun device.The two-way experimental needs of transmitting Gas Gun will in bullet to
A left side accelerates to the right, and when being used as Hopkinson pressure bar, emitter pushes bullet directly to hit compression incident bar；As Hope's gold
When gloomy pull rod, emitter can push sleeve bullet negative direction to hit the flange for stretching incident bar end.In this way may be used
To realize that the function of stretching or compress, the load for avoiding stretching or compression to be realized need to establish on a loading device
The trouble of two systems reduces the cost of experimental provision.But in this way, stretching experiment and compression are being carried out in fact
It when the conversion tested, needs to reinstall whole device and system of bars and centering, leads to inefficiency, and to lead
Cause the volume of two-way transmitting gas-gun device still huger, use cost is still more expensive.
In publication No.：In the Chinese patent of CN103983512A, by adding experiment in two adjacent end faces of test club
The mode of adapter, realizes stretching and compression-loaded in set of device.When carrying out Hopkinson pressure bar experiment, experiment is turned
The connector two end-face helicals connection adjacent with test club, test specimen are located between two experiment adapters, compression experiment transmitting dress
Set driving projectile impact test club；When carrying out Hopkinson pull rod experiment, experiment adapter is removed, the threaded test specimen in both ends
It is threadedly coupled with test club both ends of the surface, stretching experiment emitter drives the cylindric projectile impact test club end on test club
Flange.In this way, when carrying out the conversion of stretching experiment and compression experiment, test club need not be changed on a large scale,
Only need replacing experiment adapter, and then avoid system of bars reinstall and centering, improve efficiency.But
In this way, two sets of bullet driving devices are needed, cost is caused to increase, while increasing experiment adapter can also add experiment
Carrier wave shape generates interference and influences.But when using the pulling and pressing integrated device of pneumatic actuation, the volume of apparatus system is big, operation is multiple
Miscellaneous, poor repeatability, cost are higher.
And in recent years, preliminary development is obtained using the method that electromagnetic drive loads, and achieve certain success.
Publication No.：In the Chinese patent of CN103994922A, developed using the principle of electromagnetic rivet driver can generate compression stress wave and
The stress wave producer of tensile stress wave.The equipment gives coil discharge by capacitance storing up electricity, since discharge process is exceedingly fast,
Electromagnetic pulse repulsion is generated in tapered amplifier near coil, and then stress wave is generated in incident bar.Work as tapered amplifier
When between coil and incident bar, what is generated in incident bar is compressional wave, when coil be located at tapered amplifier and incident bar it
Between when, what is generated in incident bar is tensile wave.In this way, stress wave can be controlled to a certain extent, together
When compared with the mode of traditional, pneumatic, experiment repeatability it is more stronger.But the bulky of this device, installation cost and
Experimental cost is also very high.
In publication No.：In the Chinese patent application of CN102135480A, it is proposed that a kind of micro test piece Impulsive load with it is dynamic
State mechanical property measuring system and method, the method that this method introduces the load of electromagnetic drive projectile impact, simultaneously because electromagnetism drives
The volume of dynamic device will be much smaller than compressed gas big gun driving device, to make the size reduction of whole device arrive desktop grade, but
Single compressed or the function of stretching experiment can only be realized by being the device.In publication No.：The Chinese patent Shen of CN102879261A
Please in, have also been proposed a kind of pulling and pressing integratedization micro device, using the device, the dynamic compression and tensile property of material are same
It is completed on covering device.
But to sum up saying, there are defects below for the above-mentioned device using electromagnetic drive：According to reluctance type magnetic artillery
Principle, after bullet is centrally through hub of a spool, electromagnetic coil will generate bullet one decelerative force, thus need to design one
The circuit of a control power-off, but this method needs to ensure the equal length of bullet and coil, since loop length cannot become, this
The length for limiting bullet is necessary for a definite value, and then causes the stress wave width subsequently generated immutable；After power-off
It there remains a large amount of remaining electricity in capacitance, have security risk, while less efficient, cause bullet that can not obtain higher speed；Son
The maximum speed of bullet determines the maximum value of the strain rate of generation, can theoretically be realized to rear by controlling capacitance group voltage value
The control of continuous strain rate value, but the electric energy of the device provides unit control complexity, this just affects the repeatability of experiment；It should
The system of bars of micro device is small-sized, very high to the centering requirement of rod piece, but the device does not provide one reliably
Centralising device.In addition, although these devices compare the volume of traditional Hopkinson lever apparatus very little, it is positioned as desktop level
Device, but relative to width, the scale on length direction is larger, and the space on width and short transverse is not filled
Divide and utilize, is unfavorable for its use on the table.
Invention content
In view of this, the present invention provides a kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression, solve existing
The problem of its strain rate and stress wave width are unable to control using the miniature Hopkinson lever system of electromagnetic drive in technology, optimization
Current discharge waveform avoid vortex decelerative force influence, better acceleration effect is obtained while device volume reduces,
The technical issues of bullet to different length can't be compatible with.Meanwhile providing a kind of miniature rod piece centering adjusting knot of practicality
Structure.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression,
Including：Support platform, tension and compression common suction device, electromagnetic drive coil array transmitter and tension and compression bilayer beam device；Wherein,
The support platform, including：Pedestal, dragging track and supporting rod, the dragging track are located on the pedestal, and
T-shaped structure is constituted with the pedestal, the supporting rod bottom is sliding block, is provided in the sliding block and slides rail with described
Road is matched to slide guide rail, and strut is equipped on the side opposite with the dragging track in the sliding block；The electricity
Magnetic driving coil array transmitter, tension and compression bilayer beam device and tension and compression common suction device are sequentially placed by the supporting rod
On the dragging track；
The electromagnetic drive coil array transmitter, including：Transmitting pipeline, cylindrical bullet, charging and discharging circuit and shell；
The cylinder bullet is located at the emission port of the transmitting pipeline, and the charging and discharging circuit includes：Adjustable digital DC power supply, electricity
Appearance group and mostly around electromagnetism short coil module, the capacitance group, respectively with the adjustable digital DC power supply and mostly around electromagnetism short-term
Circle module is connected, and when charging receives the control of the adjustable digital DC power supply, and when electric discharge receives the electromagnetism short coil
Control；It is described to be mostly looped around on the transmitting pipeline outer wall around electromagnetism short coil module；The charge and discharge on the transmitting pipeline
Electrical circuit is greater than or equal to one；The shell is linked on the outside of the transmitting pipeline；And the electromagnetic drive coil array hair
Emitter is connected with one end far from the support platform on the supporting rod；
The tension and compression bilayer beam device, including：Compression experiment rod piece, stretching experiment rod piece and double layer support part；It is described
Compression experiment rod piece and stretching experiment rod piece are put down on the supporting rod far from the support after being supported by the double layer support part
One end of platform is connected；Wherein,
The compression experiment rod piece, including：Incident bar, compression transmission bar and compression rod piece centering adjustable sleeve are compressed,
The compression rod piece centering adjustable sleeve is internally provided with the support ring set more than or equal to four, each support ring set by
Adjusting screw on the compression rod piece centering adjustable sleeve outer wall clamps；The compression incident bar and compression transmission bar pass through institute
State the inner ring of support ring set；And the support ring set provides support for the compression incident bar and compression transmission bar；In the pressure
Foil gauge is posted on contracting incident bar and compression transmission bar；
The stretching experiment rod piece, including：It is adjustable to stretch transmission bar, stretching incident bar, bearing ring and extension rod piece centering
Casing；Adjustable sleeve is internally provided with the support ring set more than or equal to one in the extension rod piece pair, each branch
Pushing out ring set is clamped by the adjusting screw on the extension rod piece centering adjustable sleeve outer wall；The stretching transmission bar and stretching are incident
Bar passes through the inner ring of the support ring set；And the support ring set provides support for the stretching transmission bar and stretching incident bar；
Foil gauge is posted on the stretching transmission bar and stretching incident bar；
The tension and compression common suction device is located at compression experiment rod piece and stretching described in the tension and compression bilayer beam device
The position for testing the separate electromagnetic drive coil array transmitter of rod piece, for absorbing the stress pulse after the completion of loading.
Further, wherein it is described mostly around electromagnetism short coil module, including：Photoelectric control switch, high current thyristor,
More coilings and external interface；The photoelectric control switch and the adjustable digital DC power supply, high current thyristor, more coilings
Circle and external interface are connected；
There are one more coilings for the tool mostly in electromagnetism short coil module；The charging and discharging circuit, be more than or
Independent single coiling equal to one constitutes electromagnetic drive coil array.
Further, wherein through-hole is provided in the sliding block of the supporting rod, the through-hole is through to the cunning
Row guide rail is provided with fastening screw in the through-hole, and withstanding the dragging track by the fastening screw limits the branch
Position of the strut on the dragging track.
Further, wherein the strut of the supporting rod is elevating lever, and height is provided on the outside of the elevating lever
Adjusting knob adjusts the lifting of the elevating lever by the height-adjusting knob, one end far from the pedestal on the strut
On be provided with rod piece fixed block, by the fixed block of the supporting rod more than or equal to two, by the electromagnetic drive coil
Array transmitter and tension and compression bilayer beam device are fixed on the supporting rod.
Further, wherein the rod piece fixed block, including：Adjusting slider, support bottom and branch support；The adjusting is slided
Block is in sliding rail shape, and the adjusting slider is connected with one end far from the pedestal on the strut；The support bottom and support
Top is two panels hooping structure, and the electromagnetic drive coil array transmitter or tension and compression Double layer Bar are held tightly in the inside of the hooping structure
Part device；The bottom at the support bottom is provided with the guide rail of invagination, and the guide rail at the support bottom is the sliding of the adjusting slider
Track slot.
Further, wherein the rod piece fixed block, for the double-deck rod piece fixed block；The support bottom, including：Bilayer branch
Bottom and double layer support block are supportted, the double layer support block is between the double layer support bottom and the branch support, and the bilayer
Supporting block forms the double-deck anchor ear shape structure with the double layer support bottom and the branch support.
Further, wherein the adjusting screw, adjustable sleeve and/or extension rod piece pair in the compression rod piece pair
It is symmetrical in 120 ° on middle adjustable sleeve.
Further, wherein have in the electromagnetic drive coil array transmitter and be greater than or equal to described in one
Charging and discharging circuit, there are one described mostly around electromagnetism short coil module for tool in the charging and discharging circuit, the charging and discharging circuit per level-one
It mostly forms by adjustable digital DC power supply, capacitance group and around electromagnetism short coil module；And the charging and discharging circuit per level-one
Between be connected in the form of in parallel.
Further, wherein the bullet support of the cylinder bullet is prepared by polytetrafluoroethylene material；And the shell
It is prepared by polytetrafluoroethylene material.
Further, wherein the capacitance group, including：Capacitance component, voltmeter head, charging control switch and capacitance
Interface；The charging control switch is connected with the capacitance component and the adjustable digital DC power supply in the form of concatenated,
The voltmeter head and capacitive interface are connected with the capacitance component.
Compared with prior art, the double-deck miniature Hopkinson lever system of reluctance type tension and compression provided by the invention, is at least realized
One of following advantageous effect：
(1) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, it is former according to reluctance type Electromagnetic Launching
Reason, when bullet center is after hub of a spool, electromagnetic coil can generate an opposition to bullet, use multistage short coil
The configuration of long bullet can weaken the influence of vortex decelerative force, and the length that bullet may be implemented is random in a certain range as needed
It adjusts, while shortening the length of Electro-magnetic Launcher System, and then shorten the length of whole device.
(2) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, what it is using optimization is mostly around structure
The short coil of parallel connection winding makes the resistance in entire circuit and the inductance of coil greatly reduce, to keep instant discharge current peak value bright
Aobvious to increase, discharge time greatly shortens, and entire discharge process is completed before bullet is centrally through hub of a spool, eliminates quickly
The design for disconnecting coil current circuit, not only avoids the decelerating effect of vortex decelerative force, but also improves energy transformation ratio, increases
Ballistic projections speed and efficiency are added.
(3) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, is designed using double-layer structure, is shortened
The size of Hopkinson lever apparatus in the longitudinal direction with compression and stretch function while traditional, takes full advantage of width
The space for spending direction and short transverse, keeps whole device compact small and exquisite, is more suitable for operating on the table, while eliminating a cover
Play emission system.
(4) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, adjustable digital DC power supply can
It is accurate to adjust charging voltage, the controllability and repeatability of device are improved, while capacitance group and coil have been subjected to modularization
Design, improves the ease for operation of device.
(5) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, uses rod piece centering adjustable sleeve
System of bars is supported and position is fixed, solves the problems, such as that difficulty is big, complicated for operation when rod piece centering, while also to bar
Part system plays protective effect.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.By reading with reference to made by the following drawings to non-limiting embodiment institute
The detailed description of work, other features, objects and advantages will become more apparent upon：
Fig. 1 is that a kind of structure of the double-deck miniature Hopkinson lever system of reluctance type tension and compression described in the embodiment of the present invention is shown
It is intended to；
Fig. 2 is the structure of the supporting rod of the double-deck miniature Hopkinson lever system of reluctance type tension and compression described in the embodiment of the present invention
Schematic diagram；
Fig. 3 is the structure of the double-deck miniature Hopkinson lever system of another reluctance type tension and compression described in the embodiment of the present invention
Schematic diagram；
Fig. 4 is to adjust supporting rod in the embodiment of the present invention electromagnetic drive coil array transmitter is directed at tension and compression bilayer rod piece
The structural schematic diagram of device；
Fig. 5 is to adjust supporting rod in the embodiment of the present invention electromagnetic drive coil array transmitter is directed at compression experiment rod piece
Structural schematic diagram；
Fig. 6 is the double-deck miniature Hopkinson lever system pilot scale part of reluctance type tension and compression and bearing ring and bar in the embodiment of the present invention
The connection diagram of part.
Specific implementation mode
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
Convenient for description, illustrated only and the relevant part of the application in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As depicted in figs. 1 and 2, Fig. 1 is the double-deck miniature Hopkinson leverage of a kind of reluctance type tension and compression described in the present embodiment
The structural schematic diagram of system, such as the supporting rod that Fig. 2 is the double-deck miniature Hopkinson lever system of reluctance type tension and compression described in the present embodiment
Structural schematic diagram；Include in the double-deck miniature Hopkinson lever system of the reluctance type tension and compression：Support platform 101, tension and compression share
Absorption plant 102, electromagnetic drive coil array transmitter 103 and tension and compression bilayer beam device 104.
Support platform 101 includes：Pedestal 111, dragging track 112 and supporting rod 113, dragging track 112 are located at pedestal 111
On, and T-shaped structure is constituted with pedestal 111,113 bottom of supporting rod is sliding block 114, is provided with and slides in sliding block 114
Track 112 is matched to slide guide rail 115, and strut is equipped on the side opposite with dragging track 112 in sliding block 114
116；Electromagnetic drive coil array transmitter 103, tension and compression bilayer beam device 104 and tension and compression common suction device 102 pass through branch
Strut is placed sequentially on dragging track 112.
In some optional embodiments, as shown in Fig. 2, for the double-deck miniature Hope of reluctance type tension and compression described in the present embodiment
The structural schematic diagram of the supporting rod of the gloomy lever system of gold is provided with through-hole 201 in the sliding block 114 of supporting rod 113, and through-hole is through to
Guide rail is slided, fastening screw is provided in through-hole 201, dragging track restriction supporting rod is withstood by fastening screw and is sliding rail
Position on road.
In other optional embodiments, the strut 116 of supporting rod 113 is elevating lever, is provided on the outside of elevating lever
Height-adjusting knob adjusts the lifting of elevating lever by height-adjusting knob, and rod piece is provided on one end far from pedestal on strut
Fixed block 202, by the fixed block 202 of the supporting rod more than or equal to two, by electromagnetic drive coil array transmitter and drawing
The double-deck beam device of pressure is fixed on supporting rod.
Optionally, the rod piece fixed block 202, including：Adjusting slider 221, support bottom 223 and branch support 224；It adjusts and slides
Block 221 is in sliding rail shape, and adjusting slider 221 is connected with one end far from pedestal on strut；Support bottom 223 and branch support 224 are
Two panels hooping structure holds electromagnetic drive coil array transmitter or tension and compression bilayer beam device tightly in the inside of the hooping structure；
The bottom at support bottom 223 is provided with the guide rail 225 of invagination, and the guide rail 225 at support bottom 223 is the sliding rail groove of adjusting slider 221.
In other optional embodiments, rod piece fixed block 202, for the double-deck rod piece fixed block；Bottom 223 is supported, including：
Double layer support bottom 226 and double layer support block 227, double layer support block 227 between double layer support bottom 226 and branch support 224, and
Double layer support block 227 forms the double-deck anchor ear shape structure with double layer support bottom 226 and 224 top of support.
As shown in figure 3, electromagnetic drive coil array transmitter 103, including：Transmitting pipeline 131, fills cylindrical bullet 132
Discharge loop 133 and shell 134；Cylindrical bullet 132 is located at the emission port of transmitting pipeline 131, and charging and discharging circuit 133 includes：
Adjustable digital DC power supply 135, capacitance group 136 and mostly around electromagnetism short coil module 137, capacitance group 135, respectively with adjustable digital
DC power supply 135 and mostly it is connected around electromagnetism short coil module 137, receives the control of adjustable digital DC power supply, and will control
Information is transferred to mostly around electromagnetism short coil module；Mostly it is looped around on transmitting pipeline outer wall around electromagnetism short coil module；Transmitting pipeline
On charging and discharging circuit be greater than or equal to one；Shell is linked on the outside of transmitting pipeline；And electromagnetic drive coil array transmitter
It is connected with one end far from support platform on supporting rod.
In some optional embodiments, mostly include around electromagnetism short coil module 137：Photoelectric control switch, high current are brilliant
Brake tube, more coilings and external interface；Photoelectric control switch and adjustable digital DC power supply, high current thyristor, more coilings
And external interface is connected.
Have in electromagnetic drive coil array transmitter more than or equal to one charging and discharging circuit, in charging and discharging circuit
Tool is there are one mostly around electromagnetism short coil module, and there are one more coilings for tool mostly in electromagnetism short coil module；Charging and discharging circuit with
Independent single coiling more than or equal to one constitutes electromagnetic drive coil array.Using the number of charging and discharging circuit as columns,
The number of single coiling is line number in each circuit, just constitutes an array being made of independent single coiling.The array
When middle electric discharge, the coil of same row discharges simultaneously, and the coil with a line discharges successively from left to right.
Tension and compression bilayer beam device 104, including：Compression experiment rod piece 141, stretching experiment rod piece 142 and double layer support part
143；Compression experiment rod piece and stretching experiment rod piece are by one end with separate support platform on supporting rod after the support of double layer support part
It is connected；Wherein, compression experiment rod piece 141, including：Compressing incident bar 144, compression transmission bar 145 and compression rod piece centering can
Casing 146 is adjusted, adjustable sleeve is internally provided with the support ring set more than or equal to one, each support ring in compressing rod piece pair
Set is clamped by the adjusting screw on compression rod piece centering adjustable sleeve outer wall；It compresses incident bar and compression transmission bar passes through support ring
The inner ring of set；And support ring set provides support for compression incident bar and compression transmission bar；In compression incident bar and compression transmission bar
Between post foil gauge.Optionally, adjusting screw, the adjustable set in adjustable sleeve and/or extension rod piece pair in compressing rod piece pair
120 ° of Guan Shangcheng is symmetrical.
Stretching experiment rod piece 142, including：It stretches transmission bar 147, stretch incident bar 148, bearing ring 149 and extension rod piece
Centering adjustable sleeve 150；Adjustable sleeve is internally provided with the support ring set more than or equal to one in extension rod piece pair, each
Ring set is supported to be clamped by the adjusting screw on extension rod piece centering adjustable sleeve outer wall；It stretches transmission bar and stretches incident bar and pass through
Support the inner ring of ring set；And support ring set provides support to stretch transmission bar and stretching incident bar；Stretching transmission bar and stretching
Foil gauge 601 is posted between incident bar, as shown in Figure 1 and Figure 6.
Tension and compression common suction device 102 is located at compression experiment rod piece 141 and stretching experiment bar in tension and compression bilayer beam device
The exit portal position of part 142, for absorbing the stress pulse after the completion of loading.
The double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present embodiment can be multistage mostly around the drive of reluctance type electromagnetism
Moving winding array emitter system, the double-deck miniature system of bars of tension and compression, tension and compression share controllable electric energy provide device, support platform and
Tension and compression common suction device；Wherein, multistage mostly around reluctance type electromagnetic drive coil array emitter system, including it is light-operated it is multistage mostly around
Coil array, transmitting pipeline, cylindrical bullet, six-degree-of-freedom adjusting；Wherein, the more coiling arrays of light-operated multistage, by more
It is a independent mostly around electromagnetism short coil block coupled in series composition；Wherein, mostly around electromagnetism short coil module, including：One photo-electric control
Switch, a high current thyristor, coiling more than one, one provide connecing of being connected of device for sharing controllable electric energy with tension and compression
Mouthful；Wherein, more coilings are formed by multiple independent single coiling parallel connection coilings.
Six-degree-of-freedom adjusting, including multistage is mostly around the lateral adjustments of reluctance type electromagnetic drive coil array emitter system
Structure, longitudinally adjust structure, height adjusting structure, Peripheric locking adjustment structure；Wherein, lateral adjustments structure and longitudinal adjust
Section structure, in the horizontal plane to the multistage two dimension that position is mostly carried out around reluctance type electromagnetic drive coil array emitter system
Translation and rotation Three Degree Of Freedom adjust, height adjusting structure, in vertical plane to multistage mostly around reluctance type electromagnetism
Driving coil array emitter system carries out the adjusting of height and position and pitch angle；Peripheric locking adjustment structure, for
Multistage mostly fixed with position around the circumferential angular adjustment of reluctance type electromagnetic drive coil array emitter system progress is locked.
The double-deck miniature system of bars of tension and compression, including the miniature system of bars of compression experiment, the miniature system of bars of stretching experiment, company
Connect adjusting fixed system；Wherein, the miniature system of bars of compression experiment, including：Compress incident bar, compression transmission bar, compression rod piece
Centering adjustable sleeve；Wherein, incident bar is compressed, compression transmission bar is sequentially arranged in the same level height of support platform；Pressure
Contracting rod piece centering adjustable sleeve is further the miniature rod piece centering adjustable casing for compression experiment；For compression experiment
Miniature rod piece centering adjustable casing, surface is useful for observation and the fluting of clamping test specimen, and there are multiple cylindrical supports in inside
Ring set, each cylindrical support ring set outer circle are passed through by the screw-clamped in pipe outer wall, compression incident bar and compression transmission bar
The inner circle of cylindrical support ring set, and being supported by cylindrical support ring set, so make compression incident bar and compression transmission bar with
Compress the connection of rod piece centering adjustable sleeve；The miniature system of bars of stretching experiment, including：It stretches transmission bar, bearing ring, stretch incidence
Bar, extension rod piece centering adjustable sleeve；Wherein, transmission bar, bearing ring, stretching incident bar are stretched and is sequentially arranged at support platform
In same level height.
Extension rod piece centering adjustable sleeve is further the miniature rod piece centering adjustable casing for stretching experiment；With
In the miniature rod piece centering adjustable casing of stretching experiment, surface is useful for the fluting of observation and clamping test specimen, and inside has multiple
Cylindrical support ring set, each cylindrical support ring set outer circle stretch transmission bar and stretching by the screw-clamped in pipe outer wall
Incident bar passes through the inner circle of cylindrical support ring set, and is supported by cylindrical support ring set, and then makes stretching transmission bar and drawing
Incident bar is stretched to connect with extension rod piece centering adjustable sleeve.
Tension and compression share controllable electric energy and provide device, including：Adjustable digital DC power supply and multistage independent capacitance group module；
Wherein, multistage independent capacitance group module is made of multiple independent capacitance group modules；Wherein, capacitance group module, including：One electricity
Appearance group, a voltmeter head, a charging control switch and one be used for mostly connect around what electromagnetism short coil module was connected
Mouthful；Wherein, charging control switch is further capacitance group charging control switch；Capacitance group charging control switch, with adjustable digital
DC power supply is connected with capacitance group using cascade, and the conducting and disconnection of adjustable digital DC power supply and capacitance group are controlled.
Optionally, as shown in figure 3, for the double-deck miniature Hopkinson leverage of another reluctance type tension and compression described in the present embodiment
System, the charging and discharging circuit 133, be three-level charging and discharging circuit, per level-one charging and discharging circuit by adjustable digital DC power supply,
Capacitance group and mostly around electromagnetism short coil module form；And it is connected in the form of in parallel between the three-level charging and discharging circuit.
Charging and discharging circuit 133 is including adjustable digital DC power supply 135, capacitance group 136 and mostly around electromagnetism short coil module
137, capacitance group 136 includes：First order capacitance group module 301, second level capacitance group module 302, third level capacitance group module
303；Mostly include around electromagnetism short coil module 137：The first order is mostly around electromagnetism short coil module 304, the second level mostly around electromagnetism short-term
Module 305, the third level are enclosed mostly around electromagnetism short coil module 306.
Adjustable digital DC power supply 135, first order capacitance group module 301 and 304 module of first order electromagnetic coil connect successively
Connect the charging and discharging circuit that the composition first order accelerates transmitting；Adjustable digital DC power supply 135, second level capacitance group module 302 and
Two level is mostly sequentially connected the charging and discharging circuit that the composition second level accelerates transmitting around electromagnetism short coil module 305；Adjustable digital direct current
Power supply 135, third level capacitance group module 303 are mostly sequentially connected the composition third level around electromagnetism short coil module 306 with the third level and add
The charging and discharging circuit of speed transmitting.
Optionally, capacitance group 136 includes：Capacitance component, voltmeter head, charging control switch and capacitive interface；Charging
Control switch is connected with capacitance component and adjustable digital DC power supply in the form of concatenated, voltmeter head and capacitive interface with it is electric
Hold component to be connected.Three tunnel charging and discharging circuits are connected using parallel form, and adjustable digital DC power supply 135 can set charge and discharge
The voltage value in circuit, the break-make of switch controls capacitance group and adjustable digital DC power supply in capacitance group modules at different levels are at different levels
Voltmeter head in capacitance group module can be with the voltage value in real-time display capacitance groups at different levels.
It is multistage mostly around reluctance type electromagnetic drive coil array emitter system, the first order is mostly around electromagnetism short coil module 304, the
Two level is all mounted on transmitting mostly around electromagnetism short coil module 305, the third level mostly around the equal length of electromagnetism short coil module 306
On pipeline, cylindrical bullet is placed in the inlet of transmitting pipeline by the form of polytetrafluoroethylene (PTFE) bullet support, mostly around electromagnetism short coil
Module is wrapped up and is supported by cylindrical shape polyfluortetraethylene pipe together with transmitting pipeline, and cylindrical shape polyfluortetraethylene pipe is adjusted by height and filled
It sets and is connected on support platform.
When using the reluctance type tension and compression miniature Hopkinson lever system of bilayer of the present embodiment, as shown in Figure 4 and Figure 5, Fig. 4
The structural schematic diagram of compression experiment rod piece is directed to adjust supporting rod by electromagnetic drive coil array transmitter；Fig. 5 is to adjust branch
Electromagnetic drive coil array transmitter is directed at the structural schematic diagram of stretching experiment rod piece by strut.The miniature rod piece of compression experiment
System, including compression incident bar, compression transmission bar, compression rod piece centering adjustable sleeve；Wherein, the compression rod piece centering is adjustable
Casing, surface are useful for the fluting of observation and clamping test specimen, and there are multiple cylindrical support ring sets, each cylindrical support ring in inside
Inner circle of the outer circle all by the screw-clamped in pipe outer wall, compression incident bar and compression transmission bar across cylindrical support ring set is covered,
And supported by cylindrical support ring set, and then make compression incident bar and compression transmission bar and the adjustable set of the compression rod piece centering
Pipe connects.
The miniature system of bars of stretching experiment, including：It stretches transmission bar, bearing ring, stretch incident bar, extension rod piece pair
Middle adjustable sleeve；Wherein, the extension rod piece centering adjustable sleeve, surface is useful for the fluting of observation and clamping test specimen, internal
There are multiple cylindrical support ring sets, each cylindrical support ring set outer circle to stretch transmission bar by the screw-clamped in pipe outer wall
The inner circle of cylindrical support ring set is passed through with incident bar is stretched, and is supported by cylindrical support ring set, and then keeps stretching incident
Bar and stretching transmission bar are connect with the extension rod piece centering adjustable sleeve, and the bearing ring, which is located at, to be stretched transmission bar and be drawn into
It penetrates between bar, and is in close contact with two bars.
It is multistage to be mostly fixed on branch around reluctance type electromagnetic drive coil array emitter system and the double-deck miniature system of bars of tension and compression
It supports on platform；Wherein, multistage that height adjusting is mostly carried out by regulating system around reluctance type electromagnetic drive coil array emitter system, when
When carrying out compression experiment, the multistage height for mostly passing through six-degree-of-freedom adjusting around reluctance type electromagnetic drive coil array emitter system
Degree adjustment structure is adjusted to is located at same level with the miniature system of bars of compression experiment；It is multistage more when carrying out stretching experiment
It is adjusted to and draws by the height adjusting structure of six-degree-of-freedom adjusting around reluctance type electromagnetic drive coil array emitter system
It stretches the miniature system of bars of experiment and is located at same level.
More coilings turn to a coil by strand copper wire parallel connection, and the number of share of stock of copper wire is by cylindrical son in each coil
The length of bullet and the coil are entire concatenated mostly around the determination of the position optimization of electromagnetism short coil module.It is adjustable to compress rod piece centering
Sleeve outer wall has four groups of tapped through holes being equally spaced successively in an axial direction, and each group includes three and circumferentially mutually symmetrically divide in 120 °
The tapped through hole of cloth, at tapped through hole inside have a cylindrical support ring set, and by the screw of tapped through hole by cylindrical support
Ring set is fixed at compression rod piece centering adjustable sleeve inner wall；It compresses incident bar and passes through cylindrical support ring with compression transmission bar
Set, and inside compression rod piece centering adjustable sleeve.
Extension rod piece centering adjustable sleeve outer wall has four groups of tapped through holes being equally spaced successively in an axial direction, and each group includes
Three are in mutually circumferentially 120 ° of symmetrical tapped through holes, at tapped through hole inside have cylindrical support ring set, and by screw thread
Cylindrical support ring set is fixed at extension rod piece centering adjustable sleeve inner wall by the screw of through hole；It stretches incident bar and stretches
Transmission bar passes through cylindrical support ring set, and inside extension rod piece centering adjustable sleeve.
Connection regulating system is made of adjusting slider, double layer support bottom, double layer support block, double layer support top, and according to tune
Save sliding block, double layer support bottom, compression rod piece centering adjustable sleeve, double layer support block, extension rod piece centering adjustable sleeve, the double-deck branch
The sequence of support is installed successively, and is fastened by bolt and nut.
Connection adjusts fixed system, including height adjustment device, adjusting slider, double layer support bottom, double layer support block, bilayer
Branch support；Wherein,
Height adjustment device is located in support platform, when realizing that height is adjusted, the feed screw nut on height adjustment device
Structure rotates clockwise or counter-clockwise, and is fixed by screw lock, and when realizing lateral adjustments, height adjustment device is supporting
It slides laterally on platform, and is fixed by screw lock；Adjusting slider is located at height adjustment device top, and is fastened by screw；It is double
Layer support bottom is located above adjusting slider, when realizing longitudinally adjust, the longitudinal sliding motion on adjusting slider of double layer support bottom, and by
Bolt and nut is locked；Double layer support block be located at the miniature system of bars of compression experiment and the miniature system of bars of stretching experiment it
Between, and the miniature system of bars of compression experiment is detached with the miniature system of bars of stretching experiment, when the miniature system of bars of compression experiment
When realizing that rotation is adjusted, the miniature system of bars of compression experiment can rotate between double layer support bottom and double layer support block, and by two
Person clamps, and when the miniature system of bars of stretching experiment realizes that rotation is adjusted, the miniature system of bars of stretching experiment can be in double layer support
It rotates between block and double layer support top, and is clamped by the two；Double layer support bottom is locked with double layer support top by bolt and nut,
And then the miniature system of bars of compression experiment and the miniature rod piece system lock of stretching experiment are fastened.
When the present invention is used for Hopkinson pressure bar experiment, the centering for carrying out rod piece first is adjusted.Adjust compression rod piece pair
Adjusting screw on middle adjustable sleeve outer circle tube wall, and then the position of inner cylindrical support ring set is adjusted, and then make to be compressed into
It penetrates bar and compresses the axis of transmission bar to just, and be at the same level, then adjust multistage mostly around reluctance type electromagnetism
The height adjustment device of driving coil array emitter system makes multistage mostly around reluctance type electromagnetic drive coil array emitter system
The axis of transmitting pipeline and the axis of compression incident bar and compression transmission bar are at the same level to just.Hope
The course of work of gold gloomy compression bar experiment is：Cylindrical bullet is preset at photo-electric control of the first order mostly around electromagnetism short coil module and opens
At pass, photoelectric control switch of the first order mostly around electromagnetism short coil module generates voltage signal due to being blocked, driving first
Grade is at conducting state mostly around the high current thyristor of electromagnetism short coil module, to which the first order accelerates the charge and discharge of transmitting
Electrical circuit is connected, and the first order mostly converts the electric energy stored in first order capacitance group module to kinetic energy around electromagnetism short coil module,
Cylindrical bullet is launched to the right in the form of electromagnetic force, it is more that cylindrical bullet accelerates across the first order in transmitting pipeline
Around electromagnetism short coil module, the first order is reached mostly before electromagnetism short coil module centers at the center of cylindrical bullet, first
The electric energy stored in grade capacitance group module fully discharges, and the first order accelerates electric current in the charging and discharging circuit emitted to become 0, no longer
The effect of power is generated to cylindrical bullet.It is mostly short around electromagnetism to reach the second level since inertia continues to move right for cylindrical bullet
At the photoelectric control switch of coil module, the second level accelerates the charging and discharging circuit course of work of transmitting identical as the first order, herein
It repeats no more.Cylindrical bullet reaches the third level mostly around the photoelectric control of electromagnetism short coil module since inertia continues to move right
At switch processed, the third level accelerates the charging and discharging circuit course of work of transmitting identical as the first order, and details are not described herein.By three-level
After acceleration, cylindrical projectile impact compression incident bar forms compressional wave in bar, and compressional wave is to being clipped in compression incident bar and pressure
Compression sample between contracting transmission bar carries out compression-loaded, and the stress state for compressing sample is saturating by being attached to compression incident bar and compression
The foil gauge measurement penetrated on bar obtains.Stress pulse after the completion of load is absorbed by absorption plant.
When by the present invention for Hopkinson pull rod experiment, the centering for carrying out rod piece first is adjusted.Adjust extension rod piece pair
Adjusting screw on middle adjustable sleeve outer circle tube wall, and then the position of inner cylindrical support ring set is adjusted, and then keep stretching saturating
It penetrates bar and stretches the axis of incident bar to just, and be at the same level, then adjust multistage mostly around reluctance type electromagnetism
The height adjustment device of driving coil array emitter system makes multistage mostly around reluctance type electromagnetic drive coil array emitter system
The axis of transmitting pipeline and the axis of compression incident bar and compression transmission bar are at the same level to just.Hope
The course of work of gold gloomy pull rod experiment is：Cylindrical bullet is preset at photo-electric control of the first order mostly around electromagnetism short coil module and opens
At pass, photoelectric control switch of the first order mostly around electromagnetism short coil module generates voltage signal due to being blocked, driving first
Grade is at conducting state mostly around the high current thyristor of electromagnetism short coil module, to which the first order accelerates the charge and discharge of transmitting
Electrical circuit is connected, and the first order mostly converts the electric energy stored in first order capacitance group module to kinetic energy around electromagnetism short coil module,
Cylindrical bullet is launched to the right in the form of electromagnetic force, it is more that cylindrical bullet accelerates across the first order in transmitting pipeline
Around electromagnetism short coil module, the first order is reached mostly before electromagnetism short coil module centers at the center of cylindrical bullet, first
The electric energy stored in grade capacitance group module fully discharges, and the first order accelerates electric current in the charging and discharging circuit emitted to become 0, no longer
The effect of power is generated to cylindrical bullet.It is mostly short around electromagnetism to reach the second level since inertia continues to move right for cylindrical bullet
At the photoelectric control switch of coil module, the second level accelerates the charging and discharging circuit course of work of transmitting identical as the first order, herein
It repeats no more.Cylindrical bullet reaches the third level mostly around the photoelectric control of electromagnetism short coil module since inertia continues to move right
At switch processed, the third level accelerates the charging and discharging circuit course of work of transmitting identical as the first order, and details are not described herein.Such as Fig. 6 institutes
Show, is the connection signal of reluctance type tension and compression double-deck miniature Hopkinson lever system pilot scale part and bearing ring and rod piece in the present embodiment
Figure, (illustrates) after accelerating by three-level in case of in stretching experiment rod piece, and cylindrical projectile impact stretches transmission
Bar 147 forms compressional wave in bar, and compressional wave is stretched by bearing ring 602 is incoming in incident bar 148, is stretching incident bar right end
Face is reflected, and load tensile wave is generated, and load tensile wave is stretching transmission bar and stretching the tensile sample between incident bar to clamping
Tensile loads are carried out, the stress state of tensile sample 603 is measured by being attached to stretch incident bar and stretch the foil gauge on transmission bar
It obtains.Stress pulse after the completion of load is absorbed by absorption plant 102.
By above-described embodiment it is found that the double-deck miniature Hopkinson lever system of the reluctance type tension and compression of the present invention, reached as
Under advantageous effect：
(1) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, it is former according to reluctance type Electromagnetic Launching
Reason, when bullet center is after hub of a spool, electromagnetic coil can generate an opposition to bullet, use multistage short coil
The configuration of long bullet can weaken the influence of vortex decelerative force, and the length that bullet may be implemented is random in a certain range as needed
It adjusts, while shortening the length of Electro-magnetic Launcher System, and then shorten the length of whole device.
(2) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, what it is using optimization is mostly around structure
The short coil of parallel connection winding makes the resistance in entire circuit and the inductance of coil greatly reduce, to keep instant discharge current peak value bright
Aobvious to increase, discharge time greatly shortens, and entire discharge process is completed before bullet is centrally through hub of a spool, eliminates quickly
The design for disconnecting coil current circuit, not only avoids the decelerating effect of vortex decelerative force, but also improves energy transformation ratio, increases
Ballistic projections speed and efficiency are added.
(3) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, is designed using double-layer structure, is shortened
The size of Hopkinson lever apparatus in the longitudinal direction with compression and stretch function while traditional, takes full advantage of width
The space for spending direction and short transverse, keeps whole device compact small and exquisite, is more suitable for operating on the table, while eliminating a cover
Play emission system.
(4) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, adjustable digital DC power supply can
It is accurate to adjust charging voltage, the controllability and repeatability of device are improved, while capacitance group and coil have been subjected to modularization
Design, improves the ease for operation of device.
(5) the double-deck miniature Hopkinson lever system of reluctance type tension and compression of the present invention, uses rod piece centering adjustable sleeve
System of bars is supported and position is fixed, solves the problems, such as that difficulty is big, complicated for operation when rod piece centering, while also to bar
Part system plays protective effect.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression, which is characterized in that including：Support platform, tension and compression share
Absorption plant, electromagnetic drive coil array transmitter and tension and compression bilayer beam device；Wherein,
The support platform, including：Pedestal, dragging track and supporting rod, the dragging track are located on the pedestal, and with institute
It states pedestal and constitutes T-shaped structure, the supporting rod bottom is sliding block, is provided with and the dragging track phase in the sliding block
Guide rail is slided in cooperation, and strut is equipped on the side opposite with the dragging track in the sliding block；The electromagnetism drives
Moving winding array transmitter, tension and compression bilayer beam device and tension and compression common suction device are placed sequentially in institute by the supporting rod
It states on dragging track；
The electromagnetic drive coil array transmitter, including：Transmitting pipeline, cylindrical bullet, charging and discharging circuit and shell；It is described
Cylindrical bullet is located at the emission port of the transmitting pipeline, and the charging and discharging circuit includes：Adjustable digital DC power supply, capacitance group
And mostly around electromagnetism short coil module, the capacitance group, respectively with the adjustable digital DC power supply and mostly around electromagnetism short coil mould
Block is connected, and when charging receives the control of the adjustable digital DC power supply, and when electric discharge receives the control of the electromagnetism short coil；
It is described to be mostly looped around on the transmitting pipeline outer wall around electromagnetism short coil module；The charging and discharging circuit on the transmitting pipeline
More than or equal to one；The shell is linked on the outside of the transmitting pipeline；And the electromagnetic drive coil array transmitter with
One end far from the support platform is connected on the supporting rod；
The tension and compression bilayer beam device, including：Compression experiment rod piece, stretching experiment rod piece and double layer support part；The compression
Test after rod piece and stretching experiment rod piece are supported by the double layer support part on the supporting rod far from the support platform
One end is connected；Wherein,
The compression experiment rod piece, including：Incident bar, compression transmission bar and compression rod piece centering adjustable sleeve are compressed, described
Compression rod piece centering adjustable sleeve is internally provided with the support ring set more than or equal to four, and each support ring set is by described
The adjusting screw compressed on rod piece centering adjustable sleeve outer wall clamps；The compression incident bar and compression transmission bar pass through the branch
The inner ring of pushing out ring set；And the support ring set provides support for the compression incident bar and compression transmission bar；It is compressed into described
It penetrates on bar and compression transmission bar and posts foil gauge；
The stretching experiment rod piece, including：It stretches transmission bar, stretch incident bar, bearing ring and extension rod piece centering adjustable sleeve；
Adjustable sleeve is internally provided with the support ring set more than or equal to one in the extension rod piece pair, each support ring set
It is clamped by the adjusting screw on the extension rod piece centering adjustable sleeve outer wall；The stretching transmission bar and stretching incident bar pass through
The inner ring of the support ring set；And the support ring set provides support for the stretching transmission bar and stretching incident bar；Described
It stretches transmission bar and stretches and post foil gauge on incident bar；
The tension and compression common suction device is located at compression experiment rod piece and stretching experiment described in the tension and compression bilayer beam device
Position of the rod piece far from electromagnetic drive coil array transmitter, for absorbing the stress pulse after the completion of loading.
2. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 1, which is characterized in that it is described mostly around
Electromagnetism short coil module, including：Photoelectric control switch, high current thyristor, more coilings and external interface；The photo-electric control
Switch is connected with the adjustable digital DC power supply, high current thyristor, more coilings and external interface；Further,
There are one more coilings for the tool mostly in electromagnetism short coil module；The charging and discharging circuit, with more than or equal to
One independent single coiling constitutes electromagnetic drive coil array.
3. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 1, which is characterized in that the support
Be provided with through-hole in the sliding block of bar, the through-hole be through to it is described slide guide rail, fastening is provided in the through-hole
Screw withstands the dragging track by the fastening screw and limits position of the supporting rod on the dragging track.
4. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 1, which is characterized in that the support
The strut of bar is elevating lever, is provided with height-adjusting knob on the outside of the elevating lever, is adjusted by the height-adjusting knob
The lifting of the elevating lever is provided with rod piece fixed block on one end far from the pedestal on the strut or transmitter is fixed
The tension and compression bilayer beam device is fixed on institute by block by the rod piece fixed block of the supporting rod more than or equal to two
It states on supporting rod, by the transmitter fixed block of the supporting rod more than or equal to two, by the electromagnetic drive coil battle array
Row transmitter is fixed on the supporting rod.
5. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 4, which is characterized in that the transmitting
Device fixed block, including：Adjusting slider, support bottom and branch support；The adjusting slider be in sliding rail shape, the adjusting slider with it is described
One end far from the pedestal is connected on strut；The support bottom and branch support are two panels hooping structure, in the hooping structure
Inside hold the electromagnetic drive coil array transmitter or tension and compression bilayer beam device tightly；The bottom at the support bottom is provided with
The guide rail of the guide rail of invagination, the support bottom is the sliding rail groove of the adjusting slider.
6. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 5, which is characterized in that the rod piece
Fixed block, for the double-deck rod piece fixed block；The support bottom, including：Double layer support bottom and double layer support block, the double layer support block
Between the double layer support bottom and the branch support, and the double layer support block and the double layer support bottom and the support
Top forms the double-deck anchor ear shape structure.
7. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 1, which is characterized in that the adjusting
Screw, it is symmetrical in 120 ° on adjustable sleeve in adjustable sleeve and/or extension rod piece pair in the compression rod piece pair.
8. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to any one of claims 1 to 7, feature exist
In with the charging and discharging circuit more than or equal to one, the charge and discharge in the electromagnetic drive coil array transmitter
Described mostly around electromagnetism short coil module there are one tools in electrical circuit, the charging and discharging circuit per level-one is by adjustable digital direct current
Source, capacitance group and mostly around electromagnetism short coil module form；And using form in parallel between the charging and discharging circuit per level-one
It is connected.
9. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 1, which is characterized in that the cylinder
The bullet support of shape bullet is prepared by polytetrafluoroethylene material；And the shell is prepared by polytetrafluoroethylene material.
10. the double-deck miniature Hopkinson lever system of reluctance type tension and compression according to claim 1, which is characterized in that the electricity
Appearance group, including：Capacitance component, voltmeter head, charging control switch and capacitive interface；The charging control switch and the electricity
Hold component and the adjustable digital DC power supply in the form of concatenated to be connected, the voltmeter head and capacitive interface and the electricity
Hold component to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059822.5A CN108387464B (en) | 2018-01-22 | 2018-01-22 | A kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059822.5A CN108387464B (en) | 2018-01-22 | 2018-01-22 | A kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108387464A true CN108387464A (en) | 2018-08-10 |
| CN108387464B CN108387464B (en) | 2019-06-21 |
Family
ID=63077082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810059822.5A Expired - Fee Related CN108387464B (en) | 2018-01-22 | 2018-01-22 | A kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108387464B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282941A (en) * | 2018-11-22 | 2019-01-29 | 中国电子科技集团公司第四十九研究所 | A kind of shock measuring system based on monoblock type Hopkinson bar PVDF sensor |
| CN110057663A (en) * | 2019-02-28 | 2019-07-26 | 西南交通大学 | Electromagnetic type split-Hopkinson torsional bar clamps and release device |
| CN110082222A (en) * | 2019-06-10 | 2019-08-02 | 河南理工大学 | Split type three-dimensional pressure device and strain waveform figure acquisition method |
| KR102013393B1 (en) * | 2019-02-13 | 2019-08-22 | 국방과학연구소 | Multi-purpose high strain rate material testing machine |
| CN111157375A (en) * | 2020-01-21 | 2020-05-15 | 西南交通大学 | Hopkinson pressure bar device |
| CN111650035A (en) * | 2020-07-01 | 2020-09-11 | 北京工业大学 | Vertical bending loading test device |
| CN112198046A (en) * | 2020-09-28 | 2021-01-08 | 北京理工大学 | Automatic loading rod assembling device for SHPB (split Homey bar) test |
| CN112730106A (en) * | 2021-01-22 | 2021-04-30 | 泉州装备制造研究所 | Miniature Hopkinson pull rod device |
| CN113390735A (en) * | 2021-06-25 | 2021-09-14 | 东北农业大学 | Prediction method for grain breakage probability under single impact load |
| CN114111440A (en) * | 2021-11-25 | 2022-03-01 | 吉林大学 | Method for constructing and testing service condition of linear propulsion material of electromagnetic gun in situ |
| CN114166617A (en) * | 2021-11-09 | 2022-03-11 | 武汉理工大学 | Hopkinson pressure bar transmitting device based on electromagnetic coil |
| CN115493950A (en) * | 2022-10-27 | 2022-12-20 | 西南石油大学 | Rock dynamic mechanical property testing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666724A (en) * | 2009-09-25 | 2010-03-10 | 中国人民解放军国防科学技术大学 | General Hopkinson bar device for compression load and stretching load |
| CN102879261A (en) * | 2012-09-28 | 2013-01-16 | 北京理工大学 | Reluctance-type miniature Hopkinson tension and pressure integrated bar device |
| CN103207122A (en) * | 2013-04-15 | 2013-07-17 | 北京理工大学 | Minitype dynamic pulling-pressing experiment system with preload |
| CN105571961A (en) * | 2015-12-18 | 2016-05-11 | 西北工业大学 | Electromagnetic induction type Hopkinson torsion and pressure bar loading device and experimental method |
-
2018
- 2018-01-22 CN CN201810059822.5A patent/CN108387464B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666724A (en) * | 2009-09-25 | 2010-03-10 | 中国人民解放军国防科学技术大学 | General Hopkinson bar device for compression load and stretching load |
| CN102879261A (en) * | 2012-09-28 | 2013-01-16 | 北京理工大学 | Reluctance-type miniature Hopkinson tension and pressure integrated bar device |
| CN103207122A (en) * | 2013-04-15 | 2013-07-17 | 北京理工大学 | Minitype dynamic pulling-pressing experiment system with preload |
| CN105571961A (en) * | 2015-12-18 | 2016-05-11 | 西北工业大学 | Electromagnetic induction type Hopkinson torsion and pressure bar loading device and experimental method |
Non-Patent Citations (2)
| Title |
|---|
| 刘战伟: "基于多级电磁发射的mini-SHPB装置", 《实验力学》 * |
| 刘战伟: "小型霍普金森杆多级电磁发射***的优化", 《实验力学》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282941A (en) * | 2018-11-22 | 2019-01-29 | 中国电子科技集团公司第四十九研究所 | A kind of shock measuring system based on monoblock type Hopkinson bar PVDF sensor |
| KR102013393B1 (en) * | 2019-02-13 | 2019-08-22 | 국방과학연구소 | Multi-purpose high strain rate material testing machine |
| CN110057663A (en) * | 2019-02-28 | 2019-07-26 | 西南交通大学 | Electromagnetic type split-Hopkinson torsional bar clamps and release device |
| CN110082222B (en) * | 2019-06-10 | 2024-05-07 | 河南理工大学 | Split type three-dimensional pressure device and strain waveform chart acquisition method |
| CN110082222A (en) * | 2019-06-10 | 2019-08-02 | 河南理工大学 | Split type three-dimensional pressure device and strain waveform figure acquisition method |
| CN111157375A (en) * | 2020-01-21 | 2020-05-15 | 西南交通大学 | Hopkinson pressure bar device |
| CN111650035A (en) * | 2020-07-01 | 2020-09-11 | 北京工业大学 | Vertical bending loading test device |
| CN112198046A (en) * | 2020-09-28 | 2021-01-08 | 北京理工大学 | Automatic loading rod assembling device for SHPB (split Homey bar) test |
| CN112198046B (en) * | 2020-09-28 | 2022-02-22 | 北京理工大学 | Automatic loading rod assembling device for SHPB (split Homey bar) test |
| CN112730106A (en) * | 2021-01-22 | 2021-04-30 | 泉州装备制造研究所 | Miniature Hopkinson pull rod device |
| CN113390735A (en) * | 2021-06-25 | 2021-09-14 | 东北农业大学 | Prediction method for grain breakage probability under single impact load |
| CN114166617A (en) * | 2021-11-09 | 2022-03-11 | 武汉理工大学 | Hopkinson pressure bar transmitting device based on electromagnetic coil |
| CN114111440A (en) * | 2021-11-25 | 2022-03-01 | 吉林大学 | Method for constructing and testing service condition of linear propulsion material of electromagnetic gun in situ |
| CN115493950A (en) * | 2022-10-27 | 2022-12-20 | 西南石油大学 | Rock dynamic mechanical property testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108387464B (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108387464A (en) | A kind of double-deck miniature Hopkinson lever system of reluctance type tension and compression | |
| CN102879261B (en) | Reluctance-type miniature Hopkinson tension and pressure integrated bar device | |
| CN102135480B (en) | System and method for performing impact loading on micro test piece and measuring dynamic mechanical property | |
| CN103558100B (en) | The pulling and pressing integrated experimental provision of Hopkinson | |
| CN103926138B (en) | Based on Hopkinson strut and tie stress wave generator and the experimental technique of electromagnetic force | |
| CN103207122B (en) | There is the miniature dynamic tension and compression experiment system of prestrain | |
| CN202770702U (en) | Miniature reluctance type integrated pulling-pressing Hopkinson bar device | |
| CN105571961A (en) | Electromagnetic induction type Hopkinson torsion and pressure bar loading device and experimental method | |
| CN110333051A (en) | A kind of test equipment and method of semiconductor laser chip | |
| CN101498637B (en) | High-speed particle impact test apparatus | |
| CN115597962A (en) | Multi-degree-of-freedom mechanical test platform for electromagnetic high-speed impact test | |
| CN108408088B (en) | Two-dimensional unfolding zero-gravity simulation device and method based on constant force spring | |
| CN102128755B (en) | Device and method for hoop tensile test based on laser impact biaxial loading | |
| CN104406458B (en) | A kind of missile launching simulator | |
| CN106226057A (en) | A kind of easy reciprocal non-percussion load charger | |
| CN116698626B (en) | Single-pulse high strain rate tensile test device based on Hopkinson pressure bar | |
| Huang et al. | A miniature multi-pulse series loading Hopkinson bar experimental device based on an electromagnetic launch | |
| CN206523367U (en) | A kind of high-speed tester (HST) | |
| CN206056934U (en) | A kind of easy reciprocal non-percussion load charger | |
| CN114414357A (en) | Hopkinson bar electromagnetic loading device and implementation method | |
| Dann et al. | Upgrade of the X3 super-orbital expansion tube | |
| Cai et al. | Improvement and application of miniature Hopkinson bar device based on series-parallel coil array electromagnetic launch | |
| CN111366482B (en) | Dynamic high-speed loading ejection device | |
| CN113484160B (en) | Non-coaxial bidirectional synchronous compression loading device and method thereof | |
| CN212059297U (en) | Adjustable pulse width waveform generating device for initiating explosive device impact test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 Termination date: 20210122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |