CN101509281B - Collision type shape memory alloy dissipation energy device - Google Patents
Collision type shape memory alloy dissipation energy device Download PDFInfo
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- CN101509281B CN101509281B CN2009100110706A CN200910011070A CN101509281B CN 101509281 B CN101509281 B CN 101509281B CN 2009100110706 A CN2009100110706 A CN 2009100110706A CN 200910011070 A CN200910011070 A CN 200910011070A CN 101509281 B CN101509281 B CN 101509281B
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- shape memory
- memory alloy
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- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a collision type shape memory alloy energy consumer, mainly comprising a square steel cylinder, a shape memory alloy plate, a push-and-pull rod and steel elliptical cakes. The shape memory alloy of the invention is characterized in that: 7 shape memory alloy plates embedded at the upper part and lower part of the square steel cylinder evenly divide the interior of the square steel cylinder into 8 interval parts; 4 steel elliptical cakes similar to candied gourd strings are evenly distributed on the steel push-and-pull rod, and the 4 steel elliptical cakes are placed in 4 interval parts of the square steel cylinder; when the push-and-pull rod moves to and fro, non-perfect elastic collision between the steel elliptical cakes and shape memory alloy occurs, thus achieving the purpose of exchanging momentum and dissipating kinetic energy. The invention has the effects and benefits that the energy consumption capacity of the energy consumer is in direct proportion to amplitude thereof; when the amplitude is relatively low, every steel elliptical cake moves to and fro to consume energy in respective space thereof; when the amplitude is relatively high, the steel elliptical cake can enter adjacent interval parts to consume energy by collision; in the process, as deformation of the shape memory alloy plates is relatively large, relatively strong restoring force is generated.
Description
Technical field
The invention belongs to technical field of civil engineering, relate to a kind of collision type shape memory alloy dissipation energy device.
Background technology
Violent earthquake has brought huge disaster to the mankind.The considerable damage of building is the immediate cause that causes earthquake disaster with collapsing in the earthquake.Therefore, the construction house of science improves its shock resistance, alleviates seismic damage loss and has important and practical meanings.Traditional Aseismic Structure System is to come " opposing " geological process by the performance that strengthens structure itself, promptly the drag by strengthening structural element, increase measure storage and dissipation seismic energy such as ductility, but this method exists the limitation that safety is difficult to guarantee, adaptive capacity is poor, economy is not good enough.The energy-dissipating and shock-absorbing technology provides a rational and effective approach for structural seismic.The damping technology of passive energy-consumption damper is relatively ripe, when many problems of ubiquity still at present.Easily aging as viscoelastic damper, the maintenance of viscous damper, the reliability of frcition damper when long-term use the, the plasticity permanent set of mild steel damper etc.
Marmem is a kind of new function material that has perception and driving force concurrently, has shape memory effect and hyperelastic fine quality, utilizes the passive energy dissipator of the super elastic characteristics making of marmem can overcome the problems referred to above.Advantages such as this class damper is compared with other dampers, has durability and corrosion resistance and good, and life cycle is long, and distortion is big and can recover.But existing shape memory alloy dissipation energy device mainly utilizes the damping characteristic of austenite shape memory alloy, and the general hysteresis loop of this damper is long and narrow, and energy dissipation capacity is limited.And building structure is when suffering geological process, and its destructive power is not of uniform size, and energy consumer should provide different controls as important energy dissipator according to the difference of earthquake intensity aspect power consumption.
Therefore, a kind of damper with highly energy-consuming characteristic of exploitation is resisted earthquake disaster to engineering structures and is had important practical significance.
Summary of the invention
The invention provides a kind of collision type shape memory alloy dissipation energy device, its objective is problem such as solve that existing energy consumer permanent set is big, poor durability, energy dissipation capacity are limited.
Technical scheme of the present invention is as follows:
Collision type shape memory alloy dissipation energy device mainly is made up of the oval cake of square steel tube, marmem plate, pull bar and steel.It is characterized in that: the upper and lower seven block-shaped memorial alloy plates that respectively are embedded with of square steel tube inwall are divided into eight intervals with its inside; Be evenly distributed with the oval cake of four steels that are similar to the sugarcoated haws string above the steel pull bar, four oval cakes are positioned in four middle intervals of square steel tube; When the pull bar back and forth movement, the oval cake of steel will with marmem plate generation non-perfect elastic collision, reach the purpose of exchange momentum and dissipation kinetic energy; The energy dissipation capacity of this energy consumer is directly proportional with amplitude, when amplitude hour, the oval cake of each steel comes and goes energy by collision in space separately; When amplitude was big, the interval energy by collision that the oval cake of steel can enter the next door because the distortion of marmem plate is bigger, will produces stronger restoring force, thereby reach the purpose that reduces structural vibration in this process.
Effect of the present invention and benefit are mainly reflected in energy consumer can provide different energy dissipation capacities according to amplitude different, and this energy consumer also has anticorrosive preferably, fatigue resistance, and maintenance cost is low, simple structure, easy for installation.This novel impact type shape memory alloy damper makes the seismic design process more convenient, practical, will be widely used in engineering structures seismic design field.
Description of drawings
Fig. 1 is the vertical view of collision type shape memory alloy dissipation energy device.
Fig. 2 is the side elevational view of collision type shape memory alloy dissipation energy device.
Fig. 3 is the front elevation drawing of collision type shape memory alloy dissipation energy device.
Fig. 4 is the rear elevation of collision type shape memory alloy dissipation energy device.
Fig. 5 is the A-A sectional drawing of collision type shape memory alloy dissipation energy device among Fig. 1.
Fig. 6 is the B-B sectional drawing of collision type shape memory alloy dissipation energy device among Fig. 5.
Fig. 7 is the C-C sectional drawing of collision type shape memory alloy dissipation energy device among Fig. 5.
Among the figure: 1. connecting hole; 2. marmem plate; 3. the oval cake of steel; 4. square steel tube; 5. pull bar; 6. high-strength bolt; 7. the edge of a wing.
The specific embodiment
Be described in detail implementation step of the present invention below in conjunction with technical scheme and accompanying drawing.
Step 1. under little shake and big shake effect, is analyzed engineering structures respectively, according to the performance requirement that will reach, determines the size and the parameter of energy consumer.
Claims (1)
1. a collision type shape memory alloy dissipation energy device is made up of connecting hole (1), marmem plate (2), the oval cake (3) of steel, square steel tube (4), pull bar (5), high-strength bolt (6), the edge of a wing (7); It is characterized in that: the upper and lower seven block-shaped memorial alloy plates (2) that respectively are embedded with of the inwall of square steel tube (4) are divided into eight intervals with square steel tube inside; Leave the hole that can supply pull bar to pass on the seven block-shaped memorial alloy plates (2); Be evenly distributed with the oval cake (3) of four steels that are similar to the sugarcoated haws string above the steel pull bar (5), four oval cakes (3) are positioned in four middle intervals of square steel tube (4); Spacing between the oval cake of steel (3) equates with the spacing between the marmem plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100110706A CN101509281B (en) | 2009-04-05 | 2009-04-05 | Collision type shape memory alloy dissipation energy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100110706A CN101509281B (en) | 2009-04-05 | 2009-04-05 | Collision type shape memory alloy dissipation energy device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101509281A CN101509281A (en) | 2009-08-19 |
| CN101509281B true CN101509281B (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100110706A Expired - Fee Related CN101509281B (en) | 2009-04-05 | 2009-04-05 | Collision type shape memory alloy dissipation energy device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101509281B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518040B (en) * | 2011-11-23 | 2013-11-20 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN108316503B (en) * | 2018-03-08 | 2023-08-04 | 大连理工大学 | Collision vibration damping rod based on piezoelectric energy consumption |
| CN108374327B (en) * | 2018-03-27 | 2019-08-30 | 华东交通大学 | A kind of suspention damping device |
| CN112832400B (en) * | 2021-01-07 | 2022-05-24 | 西安建筑科技大学 | Friction energy dissipation type damper and steel frame beam column connecting node |
| CN113322782B (en) * | 2021-05-31 | 2022-10-04 | 哈尔滨工业大学 | Welding-free shape memory alloy double-tube shearing energy dissipation device filled with rubber |
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2009
- 2009-04-05 CN CN2009100110706A patent/CN101509281B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101509281A (en) | 2009-08-19 |
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Granted publication date: 20100908 Termination date: 20130405 |