CN205712545U - A kind of tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator - Google Patents
A kind of tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator Download PDFInfo
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- CN205712545U CN205712545U CN201620181566.3U CN201620181566U CN205712545U CN 205712545 U CN205712545 U CN 205712545U CN 201620181566 U CN201620181566 U CN 201620181566U CN 205712545 U CN205712545 U CN 205712545U
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Abstract
This utility model is a kind of tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator, this antivibrator is mainly made up of adpting flange, core bar, spigot nut, cylinder barrel, magnetic shape memory unit, guide piston, spring and closing nut, core bar it is provided with inside cylinder barrel, multiple magnetic shape memory unit are arranged along core bar periphery, magnetic shape memory unit two ends are connected with spigot nut and guide piston respectively, installing spring between guide piston and closing nut, the adpting flange that arranges at antivibrator two ends is connected with agent structure.That this utility model exists is passive, half actively and actively control multiple duty, and intelligence degree is higher, has the advantages such as response frequency is high, damping capacity is strong, automatically reset, performance is relatively stablized.
Description
Technical field
This utility model belongs to the technical field that civil engineering structure passive energy dissipation controls, and is specifically related to a kind of intelligent controlling device for vibration control of civil engineering structure field, controls for the safety under dynamic disaster effect and comfort level.
Background technology
Structural vibration reduction controls by the most rationally arranging damping absorption device, efficiently controls the vibratory response of structure, makes the structure every response value under earthquake, strong wind or other dynamic interference effects be controlled in allowed band.It meets structural safety and uses functional requirement for improving the antidetonation of civil engineering structure, wind loading rating, having great importance.In recent years, structure intelligent controls due to higher control efficiency, is paid close attention to widely.Structure intelligent controls to include using intelligent control algorithm and using intelligent drives or two class Based Intelligent Control of Smart damping device.Latter class is primarily referred to as using such as electric/magnetic rheological liquid, shape memory alloy material, piezoelectric and electro magnetic to cause the intelligent drives materials such as telescopic material and the structure intelligent that device is mark controls.Some devices developed include high output MR damper (CN 101215860A), a kind of MR damper (CN204985491U) of integrated energy regenerative, multilayer barrel type piezoelectric friction damper (CN 2014126074 U), shape memory alloy friction big stroke re-centring damper (CN 204435591U), the energy antivibrator (CN 104165204A) etc. that piezoelectric ceramics combines with magnetic flow liquid, wherein, more conventional intelligent damper is MR damper and piezoelectricity friction-changing damper, this two classes antivibrator is generally only capable of realizing passively controlling and the switching of semi-active control two states, the control actuator needed for actively control cannot be become, directly export damping force.
Magnetic shape memory alloy (Magnetic Shape Memory Alloy, it is abbreviated as MSMA) not only there is shape memory effect and super-elasticity that martensitic phase transformation causes, and there is martensite variants and redirect the mangneto shape memory effect and super-elasticity caused.It has the feature that piezoelectric ceramics and magnetostriction materials response frequency are fast, temperature control marmem output strain and stress is big concurrently, is one of the hot topic of intellectual material research.It has had more device to research and develop in fields such as machinery, sensings, such as devices such as magnetically controlled shape memory alloys self-sensing actuator (CN101620412A), differential-mode magnetic control shape memory alloy actuator (CN1633021A), magnetic control shape memery alloy crawling type linea motor (CN1474504A), a kind of high-frequency drive devices (CN 202798522U).In recent years, also the research and development in some principles have been had, as magnetic control shape memory alloy stretches actuator (CN 102359198A), constructure shakeproof system based on magnetic control shape memory alloy and induction control method (CN103382743A) thereof etc. at field of vibration control.But, fragility and the restriction of current process technology due to material, magnetic shape memory alloy material mostly is less block, it is difficult to the component form that the yardsticks such as processing filamentation material, bar are bigger, it is adaptable to the large tonnage magnetic shape memory alloy antivibrator of civil engineering structure is the most rare.
Therefore, make full use of magnetic shape memory alloy from height response frequency, big output displacement and the advantage such as automatically reset, by suitable tectonic sieving to avoid its defect in processing characteristics, develop a kind of be adapted to civil engineering structure large-tonnage, have concurrently passive, half actively and the intelligent damper of active control device characteristic has certain practical significance.
Utility model content
The purpose of this utility model is to provide and a kind of makes full use of the pyromagnetic mechanical property of magnetic shape memory alloy, has certain output tonnage and multiple duty, is applicable to the intelligent damper of civil engineering structure, for civil engineering structure passive energy dissipation under dynamic disaster effect.This antivibrator is when no power, a small amount of energy and the enough energy, it is able to realize passive, half function actively and actively controlled, hardware foundation is provided for real intelligentized control method, simultaneously, the super-elasticity special due to magnetic shape memory alloy and shape memory effect, it is possible to automatically reset after realizing shaking.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, this utility model is achieved through the following technical solutions:
A kind of tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator, including cylinder barrel, it is provided with spigot nut at the one end open of described cylinder barrel, other end opening part is provided with closing nut, core bar it is provided with inside cylinder barrel, one end of described core bar passes spigot nut actively and is exposed to a cylinder barrel part, core bar is exposed to the part of cylinder barrel and is connected with the first adpting flange, the other end of described core bar is connected with the guide piston in cylinder barrel, multiple magnetic shape memory unit are being arranged along core bar periphery, described magnetic shape memory unit two ends are connected with spigot nut and guide piston respectively, it is provided with spring between described guide piston and closing nut.
Further, described magnetic shape memory unit is made up of two end frames, multiple magnetic shape memory alloy block and multiple intermediate support, two described end frames are affixed with spigot nut and guide piston respectively, described intermediate support is arranged between two end frames, and described magnetic shape memory alloy block is fixed between intermediate support and between intermediate support and end frame.
Further, described intermediate support is slidingly arranged in the conduit inside cylinder barrel, and the rigidity that described intermediate support and end frame have is so that deformation occurs to be advisable at magnetic shape memory alloy block.
Further, described magnetic shape memory alloy block uses Ni2MnGa、Ni2One or more in FeGa magnetic shape memory alloy, composite, the superelastic effect and the mangneto shape memory effect that form magnetic shape memory alloy block produce passive super-elasticity, half active variable damping and the various control pattern actively controlled.
Further, described core bar is made up of guide rod, coil and magnetic conduction flank, and the wire that described coil is drawn is caused outside cylinder barrel by core bar.
Further, the wire connecting power that described core bar is derived, for providing coil to produce along the energy needed for cylinder barrel magnetic field radially.
Further, this antivibrator also includes a kind of manufacture method, and the method comprises the following steps:
Structure is analyzed by step 1., calculates required damper designs parameter, determines therefrom that antivibrator cylinder barrel cross section, magnetic shape memory unit size and the design parameter such as quantity, core bar size；
Step 2. uses high-strength alloy steel seamless steel tube processing and fabricating cylinder barrel, and conduit is reserved in inner side, and its inner surface is used cold-extrusion technology, strengthens wearability；
Step 3. makes end frame, magnetic shape memory alloy block and intermediate support according to design parameter, is fixed between each intermediate support by magnetic shape memory alloy block, and at two ends anchor portion support, forms magnetic shape memory unit；
Step 4. makes guide rod, and installs coil and magnetic conduction flank on guide rod, forms core bar, connects guide piston further in one end of core bar, by affixed with guide piston for the end frame of the magnetic shape memory unit one end made；
Assembled good core bar and magnetic shape memory unit are loaded cylinder barrel along corresponding conduit by step 5., then install spigot nut, and with bolt by the reserved screw of spigot nut and end frame by affixed with spigot nut for the end frame being not connected with；
The step 6. cylinder barrel in guide piston side installs spiral shell spring, and spring is affixed with guide piston, then nut is closed in press-in；
Step 7. installs the first adpting flange and the second adpting flange at the end that core bar exposes and closing nut, completes the assembling of whole antivibrator.
The beneficial effects of the utility model are:
1. this utility model can effectively control civil engineering structure response under dynamic load function, protects agent structure；
2. this device takes full advantage of super-elasticity and the magnetic shape memory effect of magnetic shape memory alloy block by structure, passive self-resetting metal damper is shown as during no power, show as yield point elongation adjustable half actively self-resetting metal damper during a small amount of energy energising, show as actively controlling actuator and positor during the energising of the enough energy；
3. this antivibrator has taken into full account that current magnetic shape memory alloy is more crisp, has been only capable of making the processing characteristics such as small size component, have multiple working conditions, automatically reset, the advantage such as response frequency is high, damping capacity is strong, performance is relatively stable.
Accompanying drawing explanation
Fig. 1 is schematic appearance of the present utility model;
Fig. 2 is vertical section structure schematic diagram of the present utility model;
Fig. 3 is A-A cross-sectional view of the present utility model;
Fig. 4 is B-B cross-sectional view of the present utility model.
Label declaration in figure: 1. the first adpting flange, 2. core bar, 3. spigot nut, 4. cylinder barrel, 5. magnetic shape memory unit, 6. guide piston, 7. spring, 8. closes nut, 11. second adpting flanges, 21. guide rods, 22. coils, 23. magnetic conduction flanks, 41. conduits, 51. end frames, 52. magnetic shape memory alloy blocks, 53. intermediate supports.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, this utility model is described in detail.
nullWith reference to shown in Fig. 1，A kind of tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator，This antivibrator is by the first adpting flange 1、Second adpting flange 11、Core bar 2、Spigot nut 3、Cylinder barrel 4、Magnetic shape memory unit 5、Guide piston 6、Spring 7 and closing nut 8 form，It is provided with spigot nut 3 at the one end open of described cylinder barrel 4，Other end opening part is provided with closing nut 8，Core bar 2 it is provided with inside cylinder barrel 4，One end of described core bar 2 passes spigot nut 3 actively and is exposed to cylinder barrel 4 part，Core bar 2 is exposed to the part of cylinder barrel 4 and is connected with the first adpting flange 1，Close nut 8 to be connected with the second adpting flange 11，The other end of described core bar 2 is connected with the guide piston 6 in cylinder barrel 4，Multiple magnetic shape memory unit 5 are being arranged along core bar 2 periphery，Described magnetic shape memory unit 5 two ends are connected with spigot nut 3 and guide piston 6 respectively，It is provided with spring 7 between described guide piston 6 and closing nut 8，Guide piston 6 diameter is slightly less than cylinder barrel 4 internal diameter，Guide piston 6 is located in cylinder barrel 4 slidably.
In the present embodiment, cylinder barrel 4 is ring section, uses high-strength alloy steel seamless steel tube, and its inner surface is used cold-extrusion technology, strengthen wearability, prevents in the course of the work by piston or intermediate support plucking or scuffing.
Described magnetic shape memory unit 5 is made up of two end frames 51, multiple magnetic shape memory alloy block 52 and multiple intermediate support 53, two described end frames 51 are affixed with spigot nut 3 and guide piston 6 respectively, described intermediate support 53 is arranged between two end frames 51, and described magnetic shape memory alloy block 52 is fixed between intermediate support 53 and between intermediate support 53 and end frame 51.
Described intermediate support 53 is slidingly arranged in the conduit 41 inside cylinder barrel 4, and the rigidity that described intermediate support 53 and end frame 51 have is so that deformation occurs to be advisable at magnetic shape memory alloy block 52.
Described magnetic shape memory alloy block 52 uses Ni2MnGa、Ni2One or more in FeGa magnetic shape memory alloy, composite, the superelastic effect and the mangneto shape memory effect that form magnetic shape memory alloy block 52 produce passive super-elasticity, half active variable damping and the various control pattern actively controlled.
Described core bar 2 is made up of guide rod 21, coil 22 and magnetic conduction flank 23, and the wire that described coil 22 is drawn is caused outside cylinder barrel 4 by core bar 2.
The wire connecting power that described core bar 2 is derived, for providing coil 22 to produce along the energy needed for cylinder barrel 4 magnetic field radially.
In the present embodiment, make tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator to comprise the following steps:
Structure is analyzed by step 1., calculates required damper designs parameter, determines therefrom that antivibrator cylinder barrel cross section, magnetic shape memory unit size and the design parameter such as quantity, core bar size.
Step 2. uses high-strength alloy steel seamless steel tube processing and fabricating cylinder barrel, and conduit is reserved in inner side, and its inner surface is used cold-extrusion technology, strengthens wearability.
Step 3. makes end frame 51, magnetic shape memory alloy block 52 and intermediate support 53 according to design parameter, is fixed between each intermediate support 53 by magnetic shape memory alloy block 52, and at two ends anchor portion support 51, forms magnetic shape memory unit 5.
Step 4. makes guide rod 21, and installs coil 22 and magnetic conduction flank 23 on guide rod 21, forms core bar 2, connects guide piston 6 further in one end of core bar 2, by affixed with guide piston 6 for the end frame 51 of magnetic shape memory unit 5 one end made.
Assembled good core bar 2 and magnetic shape memory unit 5 are loaded cylinder barrel 4 along corresponding conduit 41 by step 5., then install spigot nut 3, and pass through spigot nut 3 and the reserved screw of end frame 51 by affixed with spigot nut 3 for the end frame 51 being not connected with bolt.
The step 6. cylinder barrel 4 in guide piston 6 side installs spiral shell spring 7, and by affixed with guide piston 6 for spring 7, then nut 8 is closed in press-in.
Step 7. installs the first adpting flange 1 and the second adpting flange 11 at the end that core bar 2 exposes and closing nut 8, completes the assembling of whole antivibrator.
This utility model principle
When first adpting flange the 1, second adpting flange 11 and the structure cooperation generation relative motion at antivibrator two ends in this utility model, push-and-pull core bar 2, make the axially opposed motion of guide piston 6 being connected with core bar 2, tension and compression magnetic shape memory unit 5 along damper shaft to occur relative displacement, due to the effect of contraction of magnetic shape memory alloy block 52 in magnetic shape memory unit 5, it is provided that the power output of antivibrator；Utilize the electric wire that core bar 2 is derived, can be energized to antivibrator, the magnetic field along antivibrator radial direction can be produced at magnetic shape memory alloy block 52 correspondence position under appropriate power supply, thus control the state of magnetic shape memory alloy block 52.
During no power, utilizing the super-elasticity of magnetic shape memory alloy, in the case of thin tail sheep, magnetic shape memory alloy block 52 does not occur martensite to redirect, and antivibrator only provides rigidity to structure, and rigidity is connected with spring 7 by magnetic shape memory unit 5 and obtained；In the case of big displacement, magnetic shape memory alloy block 52 there occurs that martensite redirects, and rigidity greatly reduces, and starts hyperelastic hysteretic phenomenon, provides damping energy dissipation by Internal Friction of Metals；After vibration terminates, due to the superelastic effect of magnetic shape memory alloy block 52, it is possible to restPose, so that antivibrator resets.
During a small amount of energy energising, utilize under different a small amount of magnetic field, the change of the super-elasticity phase transformation initial stress (yield stresses of similar general steel) of magnetic shape memory alloy block 52, enter half controlled state actively.When structural vibration, according to calculating required optimum yield force, energising changes the phase transformation initial stress of magnetic shape memory alloy block 52, the yield force size of damping adjusting device, it is achieved the semi-active control to structure；After vibration terminates, due to the superelastic effect of magnetic shape memory alloy block 52, it is possible to restPose, so that antivibrator resets.
During the energising of the enough energy, utilize under enough magnetic field, the magnetic shape memory effect of magnetic shape memory alloy block 52, enter the active control state of Self-resetting；During structural vibration, according to the power supply controlled needed for calculating, energising changes the state of magnetic shape memory alloy block 52 in magnetic shape memory unit in real time, tension and compression guide piston 6, thus by the core bar 2 being connected with guide piston 6, exporting damping force, it is achieved the active to structure controls；After vibration terminates, the magnetic shape memory effect of magnetic shape memory alloy block 52, energising is utilized to make structure reset.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
- null1. a tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator，It is characterized in that，Including cylinder barrel (4)，Spigot nut (3) it is provided with at the one end open of described cylinder barrel (4)，Other end opening part is provided with closing nut (8)，It is provided with core bar (2) in cylinder barrel (4) inside，One end of described core bar (2) passes spigot nut (3) actively and is exposed to cylinder barrel (4) part，Core bar (2) is exposed to the part of cylinder barrel (4) and is connected with the first adpting flange (1)，The other end of described core bar (2) is connected with the guide piston (6) in cylinder barrel (4)，Multiple magnetic shape memory unit (5) are being arranged along core bar (2) periphery，Described magnetic shape memory unit (5) two ends are connected with spigot nut (3) and guide piston (6) respectively，It is provided with spring (7) between described guide piston (6) and closing nut (8).
- Tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator the most according to claim 1, it is characterized in that, described magnetic shape memory unit (5) is by two end frames (51), multiple magnetic shape memory alloy blocks (52) and multiple intermediate support (53) composition, two described end frames (51) are affixed with spigot nut (3) and guide piston (6) respectively, described intermediate support (53) is arranged between two end frames (51), described magnetic shape memory alloy block (52) is fixed between intermediate support (53) and between intermediate support (53) and end frame (51).
- Tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator the most according to claim 2, it is characterized in that, described intermediate support (53) is slidingly arranged in a conduit (41) of cylinder barrel (4) inner side, and the rigidity that described intermediate support (53) and end frame (51) have is so that deformation occurs to be advisable at magnetic shape memory alloy block (52) place.
- 4. according to the tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator described in Claims 2 or 3, it is characterised in that described magnetic shape memory alloy block (52) uses Ni2MnGa、Ni2One or more in FeGa magnetic shape memory alloy, composite, the superelastic effect and the mangneto shape memory effect that form magnetic shape memory alloy block (52) produce passive super-elasticity, half active variable damping and the various control pattern actively controlled.
- Tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator the most according to claim 1, it is characterized in that, described core bar (2) is made up of guide rod (21), coil (22) and magnetic conduction flank (23), and the wire that described coil (22) is drawn causes cylinder barrel (4) outward by core bar (2).
- Tension and compression type magnetic shape memory alloy Multimode Intelligent antivibrator the most according to claim 5, it is characterized in that, the wire connecting power that described core bar (2) is derived, is used for providing coil (22) to produce along the energy needed for cylinder barrel (4) magnetic field radially.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105735507A (en) * | 2016-03-10 | 2016-07-06 | 苏州科技学院 | Tension-compression type magnetic shape memory alloy multi-mode intelligent damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105735507A (en) * | 2016-03-10 | 2016-07-06 | 苏州科技学院 | Tension-compression type magnetic shape memory alloy multi-mode intelligent damper |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20180310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |