CN207964483U - A kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision - Google Patents
A kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision Download PDFInfo
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- CN207964483U CN207964483U CN201820224884.2U CN201820224884U CN207964483U CN 207964483 U CN207964483 U CN 207964483U CN 201820224884 U CN201820224884 U CN 201820224884U CN 207964483 U CN207964483 U CN 207964483U
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- microsecond grade
- pulse motor
- bar
- electromagnetic driver
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Abstract
A kind of electromagnetic type of the utility model offer is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision, is related to In Dynamic Testing of Materials apparatus field, including：Time distributior, time distributior are connected to high power constant-current source, and time distributior controls the power supply circuit opening time of electromagnetic driver and Microsecond grade pulse motor by high power constant-current source；High power constant-current source is connected to control electromagnetic driver and Microsecond grade pulse motor and powers to it；Test specimen, test specimen two ends are connected respectively to incident bar and transmission bar one end；Electromagnetic driver is connected to the other end of incident bar；Microsecond grade pulse motor is connected to the other end of transmission bar；Drawing/pressure pulse and torsional pulses independent propagation in bar in the utility model, it can measure respectively, by adjusting drawing/pressure pulse and torsional pulses arrival time also can get and first draw/press retrotorsion, first reverse after material under the different situations such as tension and compression load mechanical behavior, different stress states can be obtained.
Description
Technical field
The utility model is related to In Dynamic Testing of Materials apparatus fields more particularly to a kind of electromagnetic type to draw, pressure is turned round
Microsecond grade synchronization combining dynamic load experimental provision.
Background technology
The mechanical behavior of material is to carry out the basis of all structure designs, and some material is in dynamic (explosion, punching
Hit) under mechanical behavior and its quasi-static lower mechanical behavior it is significantly different.On the other hand, the mechanical behavior of material with its residing for
Stress state is closely related.
Separate type Hopkinson pull rod and compression bar are that there is material dynamic mechanical performance under a kind of research one-dimensional stress state
Imitate experimental provision.Since Volterra in 1948, Kolsky utility model split hopkinson press bar devices were used in combination within 1949
It has been studied under one-dimensional stress state since MATERIALS ' DYNAMIC Compressive Mechanical Properties, and dynamic compression experiments technology is continuously improved.Separate type
There are also impressive progresses for Hopkinson pull rod, or at present do MATERIALS ' DYNAMIC tensile mechanical properties research capital equipment it
One.The dynamic anti-shear performance of material is one of its dynamic mechanical, and research work relative difficult is tested to it, main at present
Or it is carried out by separate type split-Hopkinson torsional bar.These three experimental provisions are compared, compression bar technology relative maturity, and pull rod and torsion
Pole technology has not small room for improvement.
Material may be by the synergy of dynamic drawing/pressure and torsional load, under this synergy during military service
The behavior of the material necessarily very interested important research field of mechanics worker.
Utility model content
The purpose of the utility model is to overcome above-mentioned technological deficiencies, and providing one kind can realize that drawing (pressure) torsion Microsecond grade is same
The joint dynamic load experimental provision of step.
In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of electromagnetic type is drawn, pressure turn round it is micro-
Second grade synchronization combining dynamic load experimental provision, including：
Time distributior, the time distributior are connected to high power constant-current source, and the time distributior passes through high-power
Constant-current source controls the power supply circuit opening time of electromagnetic driver and Microsecond grade pulse motor；
High power constant-current source is connected to control electromagnetic driver and Microsecond grade pulse motor and powers to it；
Test specimen, the test specimen two ends are connected respectively to incident bar and transmission bar one end；
Electromagnetic driver, is connected to the other end of incident bar, and the electromagnetic driver is led in the electric current of high power constant-current source
Longitudinal wave is generated after logical, which, which reaches incident bar and form stretching/compressing incident pulse wherein, is transmitted to test specimen；
Microsecond grade pulse motor is connected to the other end of transmission bar, and the Microsecond grade pulse motor is in high power constant-current source
Current lead-through after generate shear wave, and transmission bar is reached by the rotor of the Microsecond grade pulse motor and is transmitted to test specimen.
Preferably, the time distributior is according to velocity of longitudinal wave, shear wave velocity, the starting point of wave to test specimen distance, Microsecond grade
The circuit parameter of pulse motor and electromagnetic driver, test type determine control electromagnetic driver and the power supply of Microsecond grade pulse motor
The circuit opening time.
Preferably, the longitudinal wave that the electromagnetic driver generates is to stretch or compress pulse.
Preferably, the shear wave that the Microsecond grade pulse motor generates is torsional pulses.
The utility model provides that a kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision, drawing/pressure
Pulse and torsional pulses independent propagation in bar, can measure respectively, be gone back by adjusting drawing/pressure pulse and torsional pulses arrival time
The mechanical behavior that can get the material after first drawing/pressing retrotorsion, first torsion under the different situations such as tension and compression load, can obtain difference
Stress state；The utility model preferably solves drawing/pressure pulse and is difficult to accurately reach asking for test specimen simultaneously with torsional pulses
Topic, improves synchronous level.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it is therefore apparent that the accompanying drawings in the following description is only
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the overall structure diagram of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the utility model, it should be noted that the side of the instructions such as term "vertical", "upper", "lower", "horizontal"
Either position relationship is orientation based on ... shown in the drawings or position relationship for position, is merely for convenience of describing this practicality and simplification is retouched
State, rather than indicate either to imply that signified device or element must have a particular orientation, with specific azimuth configuration and
Operation, therefore should not be understood as limiting the present invention.In addition, " first ", " second ", " third ", " the 4th " are only used for
Purpose is described, and should not be understood as indicating or implying relative importance.
In the description of the utility model, it is also necessary to which explanation " is set unless otherwise specific regulation and limitation, term
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or be integrally connected, it can be mechanical connection, can also be electrical connection, can be directly connected to, can also be by intermediate matchmaker
It is situated between and is connected, can is the connection inside two elements.It for the ordinary skill in the art, can be as the case may be
Understand the concrete meaning of above-mentioned term in the present invention.
Embodiment：
As shown in Figure 1, a kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision, including：
Time distributior 1, the time distributior 1 are connected to high power constant-current source 2, and the time distributior 1 is by big
Power constant current source 2 controls the power supply circuit opening time of electromagnetic driver 3 and Microsecond grade pulse motor 7；
High power constant-current source 2 is connected to control electromagnetic driver 3 and Microsecond grade pulse motor 7 and powers to it；
Test specimen 5,5 both ends of the test specimen are connected respectively to 6 one end of incident bar 4 and transmission bar；
Electromagnetic driver 3 is connected to the other end of incident bar 4, electricity of the electromagnetic driver 3 in high power constant-current source 2
Longitudinal wave is generated after conductance is logical, which, which reaches incident bar 4 and form stretching/compressing incident pulse wherein, is transmitted to test specimen 5；
Microsecond grade pulse motor 7 is connected to the other end of transmission bar 6, and the Microsecond grade pulse motor 7 is in high-power constant current
Shear wave is generated after the current lead-through in source 2, and transmission bar 6 is reached by the rotor of the Microsecond grade pulse motor 7 and is transmitted to test specimen 5.
Preferably, the time distributior 1 is according to velocity of longitudinal wave, shear wave velocity, the starting point of wave to test specimen distance, Microsecond grade
The circuit parameter of pulse motor and electromagnetic driver, test type determine that control electromagnetic driver 3 and Microsecond grade pulse motor 7 supply
The circuit opening time.
Preferably, the longitudinal wave that the electromagnetic driver 3 generates is to stretch or compress pulse.
Preferably, the shear wave that the Microsecond grade pulse motor 7 generates is torsional pulses.
After the preparations such as test specimen installation, test equipment debugging are ready, time distributior is according to velocity of longitudinal wave, shear wave speed
Degree, the starting point of wave arrive test specimen distance, the circuit parameter of Microsecond grade pulse motor and electromagnetic driver, test type (drawing/pressure and torsion
Turn simultaneously, first draw/press retrotorsion, first reverse post-tensioning/pressure) etc. determine both the power supply circuit opening time, start start button, electromagnetism
Driver generates stretching or compression pulse after current lead-through, which reaches incident bar and form stretching/compressing incidence wherein
Pulse is transmitted to test specimen, and reflection and transmission occur on test specimen and bar interface, and back wave returns to incident bar, and transmitted pulse enters transmission
Bar；Microsecond grade pulse motor generates torsional pulses after current lead-through, by its rotor reach transmission bar (for torsion be into
Penetrate bar) it is transmitted to test specimen, transmission, reflection occur on test specimen and bar interface, it (is transmission for torsion to be passed to incident bar respectively
Bar) and transmission bar (being incident bar for torsion).Drawing/pressure pulse and torsional pulses independent propagation in bar, measuring system can
Measure respective waveform respectively and store, according to Hopkinson bar data processing method handle to obtain drawing/pressure and torsion simultaneously (or
When different) effect stress-strain diagram, reach the requirement of experimental design.The utility model preferably solves material for test and exists
The problem of drawing/pressure pulse is difficult to accurately reach test specimen simultaneously with torsional pulses, improves synchronous level.
Above example is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to aforementioned reality
Example is applied the utility model is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
Modification or replacement, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (4)
1. a kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision, which is characterized in that including：
Time distributior (1), the time distributior (1) are connected to high power constant-current source (2), and the time distributior (1) is logical
Excessive power constant-current source (2) controls the power supply circuit opening time of electromagnetic driver (3) and Microsecond grade pulse motor (7)；
High power constant-current source (2) is connected to control electromagnetic driver (3) and Microsecond grade pulse motor (7) and powers to it；
Test specimen (5), test specimen (5) both ends are connected respectively to incident bar (4) and transmission bar (6) one end；
Electromagnetic driver (3) is connected to the other end of incident bar (4), and the electromagnetic driver (3) is in high power constant-current source (2)
Current lead-through after generate longitudinal wave, which, which reaches incident bar (4) and form stretching/compressing incident pulse wherein, is transmitted to test specimen
(5)；
Microsecond grade pulse motor (7) is connected to the other end of transmission bar (6), and the Microsecond grade pulse motor (7) is in high power constant
Shear wave is generated after the current lead-through in stream source (2), and transmission bar (6) is reached by the rotor of the Microsecond grade pulse motor (7) and is passed
To test specimen (5).
2. a kind of electromagnetic type as described in claim 1 is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision, feature
It is, the time distributior (1) is according to velocity of longitudinal wave, shear wave velocity, the starting point of wave to test specimen distance, Microsecond grade pulse motor
With the circuit parameter of electromagnetic driver, test type determines control electromagnetic driver (3) and Microsecond grade pulse motor (7) power supply electricity
The road opening time.
3. a kind of electromagnetic type as described in claim 1 is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision, feature
It is, the longitudinal wave that the electromagnetic driver (3) generates is to stretch or compress pulse.
4. a kind of electromagnetic type as described in claim 1 is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision, feature
It is, the shear wave that the Microsecond grade pulse motor (7) generates is torsional pulses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224884.2U CN207964483U (en) | 2018-02-08 | 2018-02-08 | A kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224884.2U CN207964483U (en) | 2018-02-08 | 2018-02-08 | A kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision |
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| CN201820224884.2U Expired - Fee Related CN207964483U (en) | 2018-02-08 | 2018-02-08 | A kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387447A (en) * | 2018-02-08 | 2018-08-10 | 合肥姜水材性科技有限公司 | A kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision |
| CN111044353A (en) * | 2019-12-31 | 2020-04-21 | 太原理工大学 | Split Hopkinson bar tension-torsion load composite loading device and using method thereof |
| CN115452551A (en) * | 2022-08-23 | 2022-12-09 | 中国人民解放军空军工程大学 | Pneumatic Hopkinson torsion bar device and operation method |
-
2018
- 2018-02-08 CN CN201820224884.2U patent/CN207964483U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387447A (en) * | 2018-02-08 | 2018-08-10 | 合肥姜水材性科技有限公司 | A kind of electromagnetic type is drawn, pressure turns round Microsecond grade synchronization combining dynamic load experimental provision |
| CN108387447B (en) * | 2018-02-08 | 2024-05-28 | 合肥姜水动态力学实验技术有限公司 | Electromagnetic tension-compression-torsion microsecond synchronous combined dynamic loading experimental device |
| CN111044353A (en) * | 2019-12-31 | 2020-04-21 | 太原理工大学 | Split Hopkinson bar tension-torsion load composite loading device and using method thereof |
| CN111044353B (en) * | 2019-12-31 | 2022-02-15 | 太原理工大学 | Split Hopkinson bar tension-torsion load composite loading device and using method thereof |
| CN115452551A (en) * | 2022-08-23 | 2022-12-09 | 中国人民解放军空军工程大学 | Pneumatic Hopkinson torsion bar device and operation method |
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