CN205502280U - Extrusion type is from restoring to throne magnetism shape memory alloy attenuator - Google Patents

Extrusion type is from restoring to throne magnetism shape memory alloy attenuator Download PDF

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Publication number
CN205502280U
CN205502280U CN201620181523.5U CN201620181523U CN205502280U CN 205502280 U CN205502280 U CN 205502280U CN 201620181523 U CN201620181523 U CN 201620181523U CN 205502280 U CN205502280 U CN 205502280U
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China
Prior art keywords
shape memory
memory alloy
magnetic
antivibrator
magnetic shape
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Withdrawn - After Issue
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CN201620181523.5U
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Chinese (zh)
Inventor
陈鑫
李爱群
高晓莹
姚江峰
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Suzhou University of Science and Technology
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Suzhou University of Science and Technology
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Abstract

The utility model relates to an extrusion type is from restoring to throne magnetism shape memory alloy attenuator, including the connecting plate, the end shrouding, the deflector, about bundled tube, the control unit, core guide arm and direction shrouding, the connecting plate is connected the both ends of about bundled tube, the one end of about bundled tube is equipped with the end shrouding, about bundled tube is inside to be equipped with the core guide arm, the both ends of core guide arm be equipped with the deflector with the direction shrouding. The utility model has the advantages of many operating condition, automatic re -setting, response frequency are high, the damping capacity is strong, the performance is more stable.

Description

Extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator
Technical field
This utility model is a kind of intelligent controlling device for vibration control of civil engineering structure field, at power Safety and comfort level under disaster effect control, and belong to the technical field that civil engineering structure passive energy dissipation controls, specifically relate to And one extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator.
Background technology
Structural vibration reduction controls by the most rationally arranging damping absorption device, and the vibration efficiently controlling structure rings Should, make the structure every response value under earthquake, strong wind or other dynamic interference effects be controlled in allowed band.It for Improve the antidetonation of civil engineering structure, wind loading rating, reduce structural vibration response, reduce casualty loss, meet structural safety and Use functional requirement, have great importance.In recent years, that develops into that structural vibration reduction controls of intellectual material and structure Important directions, people utilize electric/magnetic rheological liquid, shape memory alloy material, piezoelectric and electro magnetic to cause the intelligence such as telescopic material Driving material can develop all kinds of passive, actively and half damping device actively.Such as high output MR damper (CN 101215860 A), the MR damper (CN 204985491 U) of a kind of integrated energy regenerative, multilayer barrel type piezoelectricity friction damping Device (CN 2014126074 U), shape memory alloy self-resetting multi-dimensional shock insulation support (CN 102296702 B), a kind of based on The gear type re-centring damper (CN 104912228 A) etc. of SMA material.But, temperature control marmem response speed Slowly, MR damper utilizes magnetic rheological liquid to require higher to the processing and fabricating of device, and piezoelectric is then main at antivibrator In be used as assist material, cause these antivibrators to be difficult to intellectuality truly.
Magnetic shape memory alloy (Magnetic Shape Memory Alloy, be abbreviated as MSMA) not only has geneva Shape memory effect that body phase transformation causes and super-elasticity, and there is martensite variants and redirect the mangneto shape memory effect caused Should and super-elasticity.It has that piezoelectric ceramics and magnetostriction materials response frequency be fast concurrently, the output strain of temperature control marmem and The feature that stress is big, is one of the hot topic of intellectual material research.It has had more device to grind in fields such as machinery, sensings Send out, as magnetically controlled shape memory alloys self-sensing actuator (CN 101620412 A), differential-mode magnetic control shape memory alloy perform Device (CN 1633021 A), magnetic control shape memery alloy crawling type linea motor (CN 1474504 A), a kind of high-frequency drive dress Put devices such as (CN 202798522 U).In recent years, also there have been the research and development in some principles at field of vibration control, such as magnetic Control marmem stretches actuator (CN 102359198 A), constructure shakeproof system based on magnetic control shape memory alloy And induction control method (CN 103382743 A) etc..But, due to fragility and the restriction of current process technology, the magnetic of material Property shape memory alloy material mostly be less block, it is difficult to the component form that the yardsticks such as processing filamentation material, bar are bigger, be suitable for The most rare in the large tonnage magnetic shape memory alloy antivibrator of civil engineering structure.
Therefore, make full use of magnetic shape memory alloy and from height response frequency, big output displacement and automatically reset etc. excellent Point, by suitable tectonic sieving to avoid its defect in processing characteristics, develops a kind of civil engineering structure that is adapted to Large-tonnage intelligent damper has certain practical significance.
Utility model content
The problem that the purpose of this utility model is to overcome prior art to exist, it is provided that a kind of extrusion pressing type Self-resetting magnetic shape Shape memory alloys antivibrator, makes full use of the pyromagnetic mechanical property of magnetic shape memory alloy, has certain output tonnage and multiple Duty, it is applicable to the antivibrator of civil engineering structure, subtracts for civil engineering structure power consumption under dynamic disaster effect Shaking, this antivibrator, when no power, a small amount of energy and the enough energy, is able to realization passively, the most actively and actively control Function, provides hardware foundation for real intelligentized control method, simultaneously as the special super-elasticity of magnetic shape memory alloy and shape Shape memory effect, it is possible to auto-reset function after realizing shaking.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, this utility model is achieved through the following technical solutions:
Extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator, including connecting plate, end-plate, guide plate, about bundled tube, control Unit processed, core guide rod and guiding shrouding, described connecting plate is connected to the two ends of described about bundled tube, and one end of described about bundled tube sets Having described end-plate, be provided with described core guide rod inside described about bundled tube, the two ends of described core guide rod are provided with guide plate and institute State guiding shrouding.
Further, described core guide rod is made up of core board and trigonal slider.
Further, the inclined-plane of the trigonal slider of described core board is symmetrically distributed with some control units.
Preferably, described control unit is by extruding shell, non-magnetic shell, permanent magnet, coil, magnetic shape memory alloy block Forming with power transmission guide rod, described extruding valve jacket, and can the mutually changing of the relative positions at described non-magnetic outer side.
Further, described magnetic shape memory alloy block can use Ni2MnGa、Ni2The magnetic shape memory alloys such as FeGa Or composite.
The beneficial effects of the utility model:
This utility model is as a kind of dissipative damping device, it is possible to effectively control civil engineering structure at dynamic load function Under response, protect agent structure.This device takes full advantage of super-elasticity and the magnetic of magnetic shape memory alloy block by structure Property shape memory effect, show as passive self-resetting metal damper during no power, show as half during the energising of a small amount of energy actively Self-resetting metal damper, shows as actively controlling actuator and positor during the energising of the enough energy.This antivibrator takes into full account Current magnetic shape memory alloy is more crisp, be only capable of making the processing characteristics such as small size component, has multiple working conditions, automatically multiple The advantages such as position, response frequency is high, damping capacity is strong, performance is relatively stable.
Accompanying drawing explanation
Fig. 1 is the schematic appearance of this utility model extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator;
Fig. 2 is the 1-1 cross-sectional view of this utility model extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator;
Fig. 3 is the 2-2 cross-sectional view of this utility model extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator;
Fig. 4 (a) is the 3-3 cross-section structure signal of this utility model extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator Figure;
Fig. 4 (b) is the 4-4 cross-section structure signal of this utility model extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator Figure;
Fig. 5 is that the control unit structural representation of this utility model extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator is detailed Figure.
Label declaration in figure: 1, connecting plate, 2, end-plate, 3, guide plate, 4, about bundled tube, 5, control unit, 51, spring, 52, magnetic conduction backing plate, 53, coil, 54, permanent magnet, 55, magnetic shape memory alloy block, 6, core guide rod, 61, core board, 62, Trigonal slider, 7, guide shrouding, 8, core guide rod.
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.
With reference to shown in Fig. 1-Fig. 5, extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator, including connecting plate 1, end-plate 2, guide plate 3, about bundled tube 4, control unit 5, core guide rod 6 and guiding shrouding 7, described connecting plate 1 is connected to described about bundled tube 4 Two ends, one end of described about bundled tube 4 is provided with described end-plate 2, and described about bundled tube 4 is internal is provided with described core guide rod 6, described The two ends of core guide rod 6 are provided with guide plate 3 and described guiding shrouding 7.
Further, described core guide rod 6 is made up of core board 61 and trigonal slider 62.
Further, the inclined-plane of the trigonal slider 62 of described core board 61 is symmetrically distributed with some control units 5.
Preferably, described control unit 5 is by extruding shell 51, non-magnetic shell 52, permanent magnet 53, coil 54, magnetic shape Memorial alloy block 55 and power transmission guide rod 56 form, and described extruding shell 51 is enclosed within outside described non-magnetic shell 52, and can phase The changing of the relative positions mutually.
Further, described magnetic shape memory alloy block 55 can use Ni2MnGa、Ni2The magnetic shape memories such as FeGa close Gold or composite, superelastic effect and mangneto shape memory effect by magnetic shape memory alloy block (55) produce passively The various control patterns such as super-elasticity, half active variable damping and active control.
Preferably, described about bundled tube 4 generally box section, inner side is reserved the conduit arranging wire, and is had enough Rigidity, to retrain control unit, can add ribbed stiffener at inner side suitable position if desired.
Principle of the present utility model:
The generation relative motion when the connecting plate 1 at antivibrator two ends is with structure cooperation, thus push-and-pull core guide rod 6, Making the axially opposed motion of trigonal slider 62 of core guide rod 6, extruding control unit 5 radially produces phase para-position along antivibrator Move, but owing to control unit 5 produces radial constraint effect to outer slide so that extruding shell 51 and the contact surface of trigonal slider 62 Upper generation interaction force, the power output of antivibrator is exactly to be made up of the axial thrust load of this active force.Antivibrator core guide rod 6 Moving along a direction, the control unit 5 of trigonal slider 62 side plays a role, and opposite side does not plays a role, adjusting triangle Relation between the base angle angle adjustable damper displacement of shape slide block 62 and magnetic shape memory alloy block 55 deformation, constitutes position Move amplify, etc. the conversion regime such as displacement, displacement reduction.
During no power, utilizing the super-elasticity of magnetic shape memory alloy block 55, in the case of thin tail sheep, magnetic shape is remembered Recalling alloy block 55 does not occur martensite to redirect, and antivibrator only provides rigidity to structure;In the case of big displacement, magnetic shape Shape memory alloys block 55 there occurs that martensite redirects, and rigidity greatly reduces, and starts hyperelastic hysteretic phenomenon to occur, by gold Belong to in-fighting and damping energy dissipation is provided;After vibration terminates, due to the superelastic effect of magnetic shape memory alloy block 55, it is possible at the beginning of recovery Beginning state, so that antivibrator resets.
During a small amount of energy energising, utilizing under different a small amount of magnetic field, the super-elasticity phase transformation of magnetic shape memory alloy block 55 rises The change of beginning stress (yield stresses of similar general steel), enters half controlled state actively.When thin tail sheep, energising changes In trigonal slider 62 side control unit 5, magnetic shape memory alloy block 55 state in part control unit 5, can change resistance The rigidity of Buddhist nun's device;When big displacement, according to calculating required optimum yield force, energising changes magnetic shape in the control unit of side simultaneously The phase transformation initial stress of shape memory alloys block 55;After vibration terminates, due to the superelastic effect of magnetic shape memory alloy block 55, Can 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 55, Enter the active control state of Self-resetting.During structural vibration, according to the power supply controlled needed for calculating, energising changes triangle in real time The state of magnetic shape memory alloy block 55 in slide block 62 side control unit 5, and extrude core guide rod 6 and export damping force, real The now active to structure controls.After vibration terminates, utilize the magnetic shape memory effect of magnetic shape memory alloy block 55, energising Structure is made to reset.
The step that is embodied as of the present utility model:
(1) structure is analyzed, calculates required damper designs parameter, determine therefrom that antivibrator about bundled tube 4 Cross section, control unit 5 size and the design parameter such as number, core guide rod 6 size.
(2) make magnetic shape memory alloy block 55 according to design parameter, outside it, make skeleton and wrap up coil 54, Permanent magnet 53 is installed outside coil 54, wraps up non-magnetic shell 52 in these parts externals, at magnetic shape memory alloy block 55 Power transmission guide rod 56 is installed at top, is firmly connected with extruding shell 51 by power transmission guide rod 56, and is enclosed within non-magnetic by extruding shell 51 part Outside shell 52, complete the making of control unit 5;Can be by the preloading condition that regulation is initial that adjusts to permanent magnet 53, control Antivibrator mechanical characteristic under non-power status.
(3) according to core board 61 and the trigonal slider 62 of design parameter processing core guide rod 6, and both are fixed on one Rising, the side end at core board 61 opens bolt hole, as the connecting plate 1 of side;To extruding shell 51 and trigonal slider 62 Contact surface processes, and can be processed as smooth flat or rubbing surface as required.
(4) steel plate completing about 4 three faces of bundled tube is assembled, inserts guide plate 3 by residue one side and guides shrouding 7, and It is welded and fixed;Press design attitude subsequently and insert core guide rod 6, at core guide rod 6 with about install control unit 5 between bundled tube 4, and The non-magnetic shell 52 of control unit 5 is affixed with about bundled tube 4, and the wire of control unit 5 is reserved conduit by about bundled tube 4 and is caused about Outside bundled tube 4;The steel plate of residue one side is installed, and is welded to connect with two adjacent surfaces, weld with guide plate 3 and guiding shrouding 7 simultaneously Connect.
(5) last, installation end shrouding 2, and outside end-plate 2, it is welded to connect plate 1, also can be by end-plate 2 and connecting plate 1 Overall processing molding, is finally completed the overall package of antivibrator.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (5)

1. extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator, it is characterised in that include connecting plate (1), end-plate (2), Guide plate (3), about bundled tube (4), control unit (5), core guide rod (6) and guiding shrouding (7), described connecting plate (1) is connected to The two ends of described about bundled tube (4), one end of described about bundled tube (4) is provided with described end-plate (2), and described about bundled tube (4) is internal to be set Described core guide rod (6), the two ends of described core guide rod (6) is had to be provided with guide plate (3) and described guiding shrouding (7).
Extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator the most according to claim 1, it is characterised in that described core Heart guide rod (6) is made up of core board (61) and trigonal slider (62).
Extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator the most according to claim 2, it is characterised in that described core It is symmetrically distributed with some control units (5) on the inclined-plane of the trigonal slider (62) of core (61).
Extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator the most according to claim 3, it is characterised in that described control Unit processed (5) is by extruding shell (51), non-magnetic shell (52), permanent magnet (53), coil (54), magnetic shape memory alloy block (55) forming with power transmission guide rod (56), described extruding shell (51) is enclosed within described non-magnetic shell (52) outside, and can be mutual The changing of the relative positions.
Extrusion pressing type Self-resetting magnetic shape memory alloy antivibrator the most according to claim 4, it is characterised in that described magnetic Property marmem block (55) can use Ni2MnGa、Ni2FeGa magnetic shape memory alloy or composite.
CN201620181523.5U 2016-03-10 2016-03-10 Extrusion type is from restoring to throne magnetism shape memory alloy attenuator Withdrawn - After Issue CN205502280U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105735506A (en) * 2016-03-10 2016-07-06 苏州科技学院 Extrusion type automatic resetting magnetic shape memory alloy damper
CN111706142A (en) * 2020-07-17 2020-09-25 大连理工大学 Composite axial energy dissipation device based on piezoelectricity and shape memory alloy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105735506A (en) * 2016-03-10 2016-07-06 苏州科技学院 Extrusion type automatic resetting magnetic shape memory alloy damper
CN105735506B (en) * 2016-03-10 2017-10-10 苏州科技学院 Extrusion pressing type Self-resetting magnetic shape memory alloy damper
CN111706142A (en) * 2020-07-17 2020-09-25 大连理工大学 Composite axial energy dissipation device based on piezoelectricity and shape memory alloy
CN111706142B (en) * 2020-07-17 2024-05-28 大连理工大学 Composite axial energy dissipation device based on piezoelectricity and shape memory alloy

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Granted publication date: 20160824

Effective date of abandoning: 20171010