CN203641368U - Multi-direction self-resetting anti-vibration shape memory alloy device - Google Patents
Multi-direction self-resetting anti-vibration shape memory alloy device Download PDFInfo
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- CN203641368U CN203641368U CN201320756787.5U CN201320756787U CN203641368U CN 203641368 U CN203641368 U CN 203641368U CN 201320756787 U CN201320756787 U CN 201320756787U CN 203641368 U CN203641368 U CN 203641368U
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Abstract
The utility model discloses a multi-direction self-resetting anti-vibration shape memory alloy device which comprises an anti-pulling piston (1), an anti-pulling cylinder barrel (3), an anti-torsion cylinder barrel (4) and an anti-torsion piston (2), wherein the left side and the right side of a piston head in the anti-pulling piston are respectively connected with cylinder covers on the left side and the right side of the anti-pulling cylinder barrel through anti-pulling and anti-compressing shape memory alloy wires (5); the two ends of each anti-pulling and anti-compressing shape memory alloy wire are connected with the anti-pulling piston or the cylinder cover of the anti-pulling cylinder barrel through a chuck I or a chuck II; the anti-pulling cylinder barrel is connected with the anti-torsion cylinder barrel through a steel bar; the anti-torsion piston is mounted inside the anti-torsion cylinder barrel; the outer wall of the anti-torsion piston is connected with the inner wall of the anti-torsion cylinder barrel through four groups of anti-torsion shape memory alloy wires; the two ends of each anti-torsion shape memory alloy wire are fixed through the chucks I or the chucks II respectively. The multi-direction self-resetting anti-vibration shape memory alloy device is high in the stability for vibration isolation, vibration reduction and energy dissipation, has good vibration isolation and vibration reduction effects on vibration waves in the horizontal pulling, compressing and twisting directions, and has the capability of intelligently and automatically resetting.
Description
Technical field
The utility model relates to a kind of damper, and specifically a kind of multidirectional Self-resetting antivibration marmem device, belongs to building structure and mechanical engineering technical field.
Background technique
In recent years, along with becoming increasingly conspicuous of vibration and vibration damping problem, vibration control technology has become a very important research contents in engineering field, in the various engineering vibration control and damping technology measure of research and development, energy dissipation damper has been widely used in the fields such as building, machinery, Aero-Space, communications and transportation, sports equipment as the effective vibration damping and vibration isolation device of one.
Deformability and damping capacity are two difficult points in field of engineering technology as the important parameter of energy dissipation damper always, and principal element is: when the deformability hour of damper, be difficult to obtain enough large damping; In the time that the deformability of damper is large, can obtain large damping, but its automatic recovery ability is poor; And in the time that damping is large, its reliability and poor durability, be also easily subject to the restriction of environment when work.Such as, viscous damper is very high to the performance requirement of viscous liquid, and maintenance cost and cost higher; Viscoelastic damper is easily aging; After metallic damper produces plastic yield, distortion is difficult to recover; The shortcomings such as the reliability of friction damper under prolonged application is poor.Therefore, traditional damper such as viscous damper, viscoelastic damper, common metal damper, friction damper is all difficult to realize simultaneously and can recovers, be out of shape large and the high performance of damping.
At present, in order to break through the narrow limitation of traditional energy dissipation damper in application, one of method solving is exactly to find new material, as: Chinese patent " the mixed memory alloy damper " (patent No.: ZL200620200532.0 that on July 11st, 2007 is announced, notification number: CN2921137Y), the Chinese patent of on February 27th, 2008 bulletin " self-resetting super-elastic shape memory alloy damper ' (the patent No.: ZL200720011605.6, notification number: CN201027352Y), Chinese patent " the damper of multi-dimensional superelastic shape memory alloy " (patent No.: ZL200720011607.5 that on April 23rd, 2008 is announced, notification number: CN201050121Y), disclosed Chinese patent on February 24 " the shape memory alloy (SMA) self-resetting deformation energy-consumption damper " (patent No.: ZL200910011327.8 in 2010, publication number: CN101654935AY), and disclosed Chinese patent on June 20th, 2012 " multidirectional six frustum cone cylinder marmem dampers " (application number: 201110318312.3, publication number: CN102505768A) etc. the new material that adopts of damper be all marmem, all there is good Anti-pull-press dissipation characteristics, intensity is high, proportion is little, fatigue life is long, the features such as corrosion-resistant and such environmental effects is little, but there is common problem in them, while design, do not consider to reduce because of the vibration of torsional direction the effect of Anti-pull-press energy dissipating, although the vibration of having considered torsional direction having, the effect of its antitorque energy dissipating is bad.Therefore,, in order to improve building structure and mechanical vibration isolation and damping effect and to avoid the narrow limitation of energy dissipation damper in application, must research and develop a kind of damper of other structural type.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of multidirectional Self-resetting antivibration marmem device, in thering is Anti-pull-press dissipation characteristics, possesses antitorque dissipation characteristics, avoid in vibration processes, the adverse effect that Anti-pull-press B alloy wire bends because of torsion, can improve the effect of energy dissipation of tension and compression B alloy wire; Can reach the object of vibration isolation and damping, possess the ability of structure intelligent Self-resetting after shaking.
To achieve these goals, a kind of multidirectional Self-resetting antivibration marmem device of the utility model, comprise tension piston, tension cylinder barrel, steel pole, antitorque cylinder barrel and antitorque piston, described tension piston is arranged in tension cylinder barrel, and in tension piston, the left and right sides of piston head is connected with the cylinder cap of the tension cylinder barrel left and right sides by Anti-pull-press shape memory alloy silk respectively; One end of Anti-pull-press shape memory alloy silk is fixed on a side of piston head in tension piston by chuck I, the other end is connected with the cylinder cap of tension cylinder barrel one side by chuck II; Described tension cylinder barrel is connected with antitorque cylinder barrel by steel pole; Described antitorque piston is arranged in antitorque cylinder barrel, between the outer wall of antitorque piston and the inwall of antitorque cylinder barrel, connects by four groups of antitorque shape memory alloy spun golds; Four groups of antitorque shape memory alloy spun golds are quadrilateral structure and arrange; One end of every group of antitorque shape memory alloy spun gold is fixed on the screw place on piston head in antitorque piston by chuck I, and the other end is connected to the screw place on antitorque cylinder barrel by chuck II.
Further, the inwall circumference place of described tension cylinder barrel is evenly provided with the slideway of multiple substantially horizontal projections, has the groove matching with slideway in tension piston on the outer wall of piston head.
Preferably, the length of four groups of antitorque shape memory alloy spun golds between described antitorque cylinder barrel and antitorque piston is identical.
Preferably, in described antitorque piston, the length of piston head is identical with the length of antitorque cylinder barrel.
Preferably, described Anti-pull-press shape memory alloy silk is nitinol alloy wire, and described antitorque shape memory alloy spun gold is nitinol alloy wire.
Compared with prior art, the utility model is by being reasonably combined Anti-pull-press shape memory alloy silk and antitorque shape memory alloy silk with tension piston, tension cylinder barrel, antitorque piston and antitorque cylinder barrel, make axial vibration wave pass to the other end by many groups Anti-pull-press shape memory alloy silk by one end of damper, do in reciprocal translational motion at tension piston, the Anti-pull-press shape memory alloy silk of both sides hockets to stretch and changes with retraction, and larger hysteretic energy and restoring force is provided; Simultaneously, the torque load that other direction vibration wave brings will pass to the other end by one end of damper by antitorque shape memory alloy silk, do in reciprocal fixed-axis rotation at antitorque piston, four groups of antitorque shape memory alloy silks hocket between two to stretch and change with retraction, because the hyperelastic deformation of shape memory alloy silk consumes the energy of vibration wave and the restoring force of generation, not only reached the object of antitorque vibration isolation and damping, and obtained shake after the ability of structure intelligent Self-resetting; Finally avoid Anti-pull-press shape memory alloy silk in vibration processes, the adverse effect bending because of torsion, greatly improve the effect of energy dissipation of Anti-pull-press shape memory alloy silk, and then improved significantly the energy dissipating stability of damper vibration isolation and damping, particularly the vibration wave of the horizontal tension and compression of piston and torsional direction is had to good vibration isolation and damping effect; There is intelligent automatically reset ability in the horizontal direction with on torsional direction simultaneously.In addition, in having good Anti-pull-press and antitorque vibration isolation and damping effect concurrently, the utility model can also use as Anti-pull-press damper or antitorque damper separately, and both vibration isolation and damping abilities are independent of each other and restrict.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of tension piston;
Fig. 3 is the structural representation of antitorque piston;
Fig. 4 is the connection diagram of tension cylinder barrel and antitorque cylinder barrel;
Fig. 5 is the right elevation of Fig. 1;
Fig. 6 is the sectional view at A-A place in Fig. 5;
Fig. 7 is the sectional view at B-B place in Fig. 5;
Fig. 8 is the sectional view at C-C place in Fig. 5;
Fig. 9 is the test data figure that the utility model carries out one directional tensile test on universal testing machine platform;
Figure 10 is the test data figure that the utility model carries out unidirectional twisting test on universal testing machine platform;
Figure 11 is the test data figure that the utility model carries out tension-torsion composite test on universal testing machine platform;
Figure 12 is the plotted curve between strain capacity and the restoring force of nitinol alloy wire tension test;
Figure 13 is the schematic diagram of antivibration support place to a multidirectional vibration wave response condition that common damper is arranged on a certain structure;
Figure 14 is the schematic diagram of antivibration support place to a multidirectional vibration wave response condition that the utility model is arranged on a certain structure.
In figure: 1, tension piston, 2, antitorque piston, 3, tension cylinder barrel, 4, antitorque cylinder barrel, 5, Anti-pull-press shape memory alloy spun gold, 6, antitorque shape memory alloy silk, 7, chuck II, 8, chuck I, 9, steel pole, 10, slideway.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figures 1 to 8, this Self-resetting tension is turned round shape memory alloy alloy damper, comprise tension piston 1, tension cylinder barrel 3, steel pole 9, antitorque cylinder barrel 4 and antitorque piston 2, described tension piston 1 is arranged in tension cylinder barrel 3, and in tension piston 1, the left and right sides of piston head is connected with the cylinder cap of tension cylinder barrel 3 left and right sides by Anti-pull-press shape memory alloy silk 5 respectively; One end of Anti-pull-press shape memory alloy silk 5 is fixed on a side of piston head in tension piston 1 by chuck I8, the other end is connected with the cylinder cap of tension cylinder barrel 3 one sides by chuck II7; Described tension cylinder barrel 3 is connected with antitorque cylinder barrel 4 by steel pole 9; Described antitorque piston 2 is arranged in antitorque cylinder barrel 4, between the outer wall of antitorque piston 2 and the inwall of antitorque cylinder barrel 4, connects by four groups of antitorque shape memory alloy spun golds 6; Four groups of antitorque shape memory alloy spun golds 6 are quadrilateral structure and arrange, one end of every group of antitorque shape memory alloy spun gold 6 is fixed on the screw place on piston head in antitorque piston 2 by chuck I8, and the other end is connected to the screw place on antitorque cylinder barrel 4 by chuck II7.
When use, its axial vibration ripple passes to the other end by many groups Anti-pull-press shape memory alloy silk 5 by one end of damper, do in reciprocal translational motion at tension piston 1, the Anti-pull-press shape memory alloy silk 5 of both sides hockets to stretch and changes with retraction, and larger hysteretic energy and restoring force is provided; Simultaneously, the torque load that other direction vibration wave brings will pass to the other end by one end of damper by antitorque shape memory alloy spun gold 6, do in reciprocal fixed-axis rotation at antitorque piston 2, four groups of antitorque shape memory alloy spun golds 6 hocket between two to stretch and change with retraction, because the hyperelastic deformation of shape memory alloy silk consumes the energy of vibration wave and the restoring force of generation, not only reached the object of antitorque vibration isolation and damping, and obtained shake after the ability of structure intelligent Self-resetting.In addition, steel pole 9 can be pulled down from tension cylinder barrel 3 and antitorque cylinder barrel 4, the part of both sides is used as Anti-pull-press damper or antitorque damper separately respectively, using scope is more extensive, and both vibration isolation and damping abilities are also independent of each other and restrict.
Further, can evenly be provided with at described tension cylinder barrel 3 inwall circumference places the slideway 10 of multiple substantially horizontal projections, in tension piston 1, on the outer wall of piston head, have the groove matching with slideway 10; The setting of slideway 10 and groove can be limited in tension piston 1 in tension cylinder barrel 3 and rotate in fixed axis, make tension piston 1 in tension cylinder barrel 3, do reciprocal translational motion along slideway direction, avoid occurring causing diastrophic adverse effect because of factors such as its torsions.
Preferably, the length of four groups of antitorque shape memory alloy spun golds 6 between described antitorque cylinder barrel 4 and antitorque piston 2 is identical; Now, in the time that antitorque piston 2 is made reciprocal fixed-axis rotation, it is identical that the stretching occurring between two because of four groups of antitorque shape memory alloy spun golds 6 and retraction change, thus its hocket stretch with retraction change more stable, antitorque vibration isolation and damping effect with shake after the ability of structure intelligent Self-resetting better.
Preferably, in described antitorque piston 2, the length of piston head is identical with the length of antitorque cylinder barrel 4, can limit antitorque piston 2 and in antitorque cylinder barrel 4, can not do translational motion, make the antitorque piston 2 can only be at the reciprocal fixed-axis rotation of the interior work of antitorque cylinder barrel 4, avoid occurring affecting because there is the factors such as the deformation that brings of translation the situation of antitorque effect, the antitorque effect of entirety is better.
Preferably, above-mentioned Anti-pull-press shape memory alloy silk 5 and antitorque shape memory alloy spun gold 6 can adopt nitinol alloy wire, test and test below by adopting the Self-resetting tension of making of nitinol alloy wire, according to said structure to turn round nitinol damper:
Embodiment 1:
This Self-resetting tension is turned round to nitinol damper and be arranged on universal testing machine, carry out the simple loading and unloading test of three classes: 1. one directional tensile test, test data is as shown in Figure 9; 2. unidirectional twisting test, test data is as shown in figure 10; 3. tension-torsion composite test, test data as shown in figure 11.As shown in Figures 9 to 11, can find out that the utility model damper is in the situation that loading and unload, the relation curve between external load and displacement; Owing to loading and unloading the impact of cyclic loading, cause the outer force-displacement curve of damper to present significantly a typical hysteresis closed curve (hysteresis loop), but this curve does not show and significantly (answers) power platform in load/unload process, its reason is that the B alloy wire in damper only has a little part that martensite phase transformation transformation has occurred, and the still state in resiliently deformable of most of material.However, B alloy wire has also shown good dissipation characteristics significantly, have good power consumption hysteresis loop and high recovery (or reply) ability, and hysteresis loop increases with the increase of external load.As shown in figure 12, curve between strain capacity and the restoring force of the tension test of nitinol alloy wire, B alloy wire is more than after appropriate stretching, restoring force can reach 600Mpa, in the time that the strain capacity of B alloy wire reaches 10 ﹪ left and right, B alloy wire can produce about 700Mpa restoring force, and the self-resetting capability of this type of damper is very strong as can be seen here.
Embodiment 2:
This Self-resetting tension is turned round to nitinol damper, and antivibration support place that is arranged on a certain structure is tested, and can find that its vibration isolation and damping effect is fine.As shown in figure 13, the situation of antivibration support place to a multidirectional vibration wave response that a common damper is arranged on a certain structure, the vibration isolation and damping effect of finding out common damper from the data obtained is poor, the energy dissipating ability of tension and compression nitinol alloy wires that reason has been torsional vibration wave action; As shown in figure 14, it is the vibration isolation and damping situation that the utility model damper responds same multidirectional vibration wave in same support place, the effect of energy dissipation that can see this damper is fine, and durability and the stability of vibration isolation and damping are higher, due to the superelasticity effect of Anti-pull-press and antitorque nitinol alloy wire, in very large deformation band, the distortion of B alloy wire will recover in the time that damper vibration is returned to equilibrium position, this process mechanical energy that engineering component in use causes that simultaneously dissipated, damping effect is good.
Can draw through contrast experiment's Figure 13 and 14, under multidirectional vibration wave effect, the maximum stress response extreme value that support place of common damper is installed reaches 470MPa, and be only 102MPa for the maximum stress response extreme value that support place of the utility model damper is installed, approximately the former 1/5th, relatively both response curves can be seen simultaneously, the stress response curve fluctuation of common damper support place changes frequent, between adjacent moment, STRESS VARIATION is larger, and the stress response curve fluctuation that support place of the utility model damper is installed changes seldom, be that between adjacent moment, STRESS VARIATION is less, delay and reduced the harm of vibration wave, this further shows, utilize the design feature of superelastic effect and high damping characteristic and the structure of niti material, can suppress largely the response of structure under multidirectional vibration wave.In sum, adopt new material nitinol to carry out structure redesign, can make the performance of damper be very significantly improved and improve.
Claims (5)
1. a multidirectional Self-resetting antivibration marmem device, is characterized in that, comprises tension piston (1), tension cylinder barrel (3), steel pole (9), antitorque cylinder barrel (4) and antitorque piston (2),
Described tension piston (1) is arranged in tension cylinder barrel (3), and in tension piston (1), the left and right sides of piston head is connected with the cylinder cap of tension cylinder barrel (3) left and right sides by Anti-pull-press shape memory alloy silk (5) respectively; One end of Anti-pull-press shape memory alloy silk (5) is by chuck I(8) be fixed on a side of piston head in tension piston (1), the other end is by chuck II(7) be connected with the cylinder cap of tension cylinder barrel (3) one sides;
Described tension cylinder barrel (3) is connected with antitorque cylinder barrel (4) by steel pole (9);
Described antitorque piston (2) is arranged in antitorque cylinder barrel (4), between antitorque piston (2) and antitorque cylinder barrel (4), connects by four groups of antitorque shape memory alloy spun golds (6); Four groups of antitorque shape memory alloy spun golds (6) are quadrilateral structure and arrange; One end of every group of antitorque shape memory alloy spun gold (6) is by chuck I(8) be fixed on the screw place on piston head in antitorque piston (2), the other end is by chuck II(7) be connected to the screw place on antitorque cylinder barrel (4) inwall.
2. the multidirectional Self-resetting antivibration of one according to claim 1 marmem device, it is characterized in that, the inwall circumference place of described tension cylinder barrel (3) is evenly provided with the slideway (10) of multiple substantially horizontal projections, in tension piston (1), on the outer wall of piston head, has the groove matching with slideway (10).
3. the multidirectional Self-resetting antivibration of one according to claim 1 and 2 marmem device, is characterized in that, the length of the four groups of antitorque shape memory alloy spun golds (6) between described antitorque cylinder barrel (4) and antitorque piston (2) is identical.
4. the multidirectional Self-resetting antivibration of one according to claim 1 and 2 marmem device, is characterized in that, in described antitorque piston (2), the length of piston head is identical with the length of antitorque cylinder barrel (4).
5. the multidirectional Self-resetting antivibration of one according to claim 1 and 2 marmem device, is characterized in that, described Anti-pull-press shape memory alloy silk (5) is nitinol alloy wire, and described antitorque shape memory alloy spun gold (6) is nitinol alloy wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320756787.5U CN203641368U (en) | 2013-11-26 | 2013-11-26 | Multi-direction self-resetting anti-vibration shape memory alloy device |
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| CN201320756787.5U CN203641368U (en) | 2013-11-26 | 2013-11-26 | Multi-direction self-resetting anti-vibration shape memory alloy device |
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| CN203641368U true CN203641368U (en) | 2014-06-11 |
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| CN201320756787.5U Withdrawn - After Issue CN203641368U (en) | 2013-11-26 | 2013-11-26 | Multi-direction self-resetting anti-vibration shape memory alloy device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671696A (en) * | 2013-11-26 | 2014-03-26 | 徐州工程学院 | Automatic reset tension-and-torsion-resistant shape memory alloy damper |
| CN110594325A (en) * | 2019-10-15 | 2019-12-20 | 上海大学 | Shape memory alloy vibration isolator |
| EP3739236A4 (en) * | 2018-11-21 | 2021-11-10 | Li Sun | Sma spring-stf viscous damper |
-
2013
- 2013-11-26 CN CN201320756787.5U patent/CN203641368U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671696A (en) * | 2013-11-26 | 2014-03-26 | 徐州工程学院 | Automatic reset tension-and-torsion-resistant shape memory alloy damper |
| CN103671696B (en) * | 2013-11-26 | 2016-06-29 | 徐州工程学院 | A kind of Automatic reset tension-and-torsion-shapetant shapetant memory alloy damper |
| EP3739236A4 (en) * | 2018-11-21 | 2021-11-10 | Li Sun | Sma spring-stf viscous damper |
| CN110594325A (en) * | 2019-10-15 | 2019-12-20 | 上海大学 | Shape memory alloy vibration isolator |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160629 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |