CN2806599Y - Shape memory alloy and friction composite damper - Google Patents
Shape memory alloy and friction composite damper Download PDFInfo
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- CN2806599Y CN2806599Y CN 200520112365 CN200520112365U CN2806599Y CN 2806599 Y CN2806599 Y CN 2806599Y CN 200520112365 CN200520112365 CN 200520112365 CN 200520112365 U CN200520112365 U CN 200520112365U CN 2806599 Y CN2806599 Y CN 2806599Y
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- connecting rod
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- memory alloy
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- 239000002131 composite material Substances 0.000 title claims description 24
- 229910001285 shape-memory alloy Inorganic materials 0.000 title description 20
- 238000009434 installation Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000000956 alloy Substances 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
本实用新型为一种形状记忆合金－摩擦复合阻尼器，属抗震、减震领域，克服现有阻尼器耗能能力不足，自复位能力差等缺陷。它包括有连杆(3)、摩擦垫片(9)，其特征在于：四根连杆(3)围成一个矩形变形机构，矩形变形机构每个角部连杆(3)之间的重合部分夹着预留连接件(5)，在预留连接件(5)的正反两面与连杆(3)之间设置一组摩擦垫片(9)，即矩形变形机构的每个角部按照(3)－(9)－(5)－(9)－(3)的次序通过高强螺栓(8)将连杆(3)、预留连接件(5)和摩擦垫片(9)同心连接；同时，由连杆(3)所围矩形的每个角部通过高强螺栓(8)连接夹具(7)用于固定矩形对角线方向的两组SMA丝(6)。本实用新型耗能能力强、构造简单、安装方便，自复位能力。
The utility model relates to a shape memory alloy-friction compound damper, which belongs to the field of shock resistance and shock absorption, and overcomes the defects of insufficient energy consumption capacity and poor self-resetting ability of the existing damper. It includes connecting rods (3) and friction pads (9), and is characterized in that four connecting rods (3) form a rectangular deformation mechanism, and the overlap between the connecting rods (3) at each corner of the rectangular deformation mechanism A set of friction pads (9) are set between the front and back sides of the reserved connecting piece (5) and the connecting rod (3), which partially sandwiches the reserved connecting piece (5), that is, each corner of the rectangular deformation mechanism According to the sequence of (3)-(9)-(5)-(9)-(3), connect the connecting rod (3), the reserved connecting piece (5) and the friction gasket (9) concentrically through the high-strength bolt (8) connection; at the same time, each corner of the rectangle surrounded by the connecting rod (3) is connected to the clamp (7) by a high-strength bolt (8) to fix the two groups of SMA wires (6) in the diagonal direction of the rectangle. The utility model has strong energy consumption capability, simple structure, convenient installation and self-resetting capability.
Description
Technical field:
The utility model is a kind of marmem-friction composite buffer, belongs to building structure aseismatic, cushion technique field.
Background technology:
In building construction vibration control field, passive energy dissipative device (damper) has advantages such as cost is low, easy to installation and maintenance, control is effective, applied range, thereby has been subjected to domestic and international Structural Engineering and earthquake engineering scholar's abundant attention.The kind of energy consumer is more, mainly contains several classes such as frcition damper, viscoelastic damper, viscous damper, mild steel damper and oil damper,
Marmem (Shape Memory Alloy is called for short SMA) is a kind of new function material with shape memory effect, superelastic effect and high damping characteristic.Compare with the damper that adopts ordinary metallic material to make, passive damping utensil based on the exploitation of super elastic shape memory alloy hysteretic characteristic has durability and corrosion resistance and good, the operating period limit for length, energy dissipation capacity is strong, and distortion is than series of advantages such as big and distortion can recover.
Nineteen eighty-two " Journal of Structural Division, ASCE " " Response ofFriction Damped Braced Frames " literary composition Pall frcition damper (organigram as shown in Figure 1) has been proposed first, the deformation mechanism that the Pall frcition damper is mainly surrounded by connecting rod 3 and being intersects the friction pad arranged and is slidingly connected and 2 forms, when meeting with violent earthquake, the rectangle mechanism that connecting rod 3 is formed can produce the rigid body distortion in the horizontal direction and drive arranged in a crossed manner being slidingly connected and 2 move along the diagonal of rectangle mechanism, be slidingly connected 2 by the sliding friction dissipation energy, reduce the vibration of agent structure.Engineering practice shows that the Pall frcition damper has certain energy-dissipating and shock-absorbing effect to building structure, and however, the Pall frcition damper still exists such as not having runback potential energy power, power consumption defectives such as effect is remarkable inadequately.
Summary of the invention:
Main purpose of the present utility model is in order to overcome damper energy dissipation capacity deficiency in the prior art, and the defective of two aspects such as runback position ability proposes a kind of marmem-friction composite buffer (hereinafter to be referred as composite buffer).
The technical solution of the utility model is seen Fig. 2, it includes connecting rod 3, friction shim 9, be characterised in that: four connecting rods 3 surround a rectangle deformation mechanism, intersection between each bight connecting rod 3 of rectangle deformation mechanism clips reserves connector 5, between the tow sides of reserving connector 5 and connecting rod 3 one group of friction shim 9 is set, promptly each bight of rectangle deformation mechanism is connected connecting rod 3, reservation connector 5 with friction shim 9 by high-strength bolt 8 with one heart according to the order of 3-9-5-9-3.Simultaneously, two groups of shape-memory alloy wires 6 that are used for fixing the rectangle diagonal by each bight of rectangle that connecting rod 3 encloses by high-strength bolt 8 jockeies 7.
Its bight of the above-mentioned composite buffer that is used for building structure reserve connect 5 and support 1 link to each other with the fabric structure member.According to the needs of fabric structure form, composite buffer can adopt the arrangement form of two-way support, and promptly the reservation connector 5 along two diagonals of composite buffer quadrangle deformation mechanism is connected with support 1 simultaneously; Also can adopt the arrangement of unidirectional support, promptly link to each other with support 1 along reservation connector 5 of quadrangle deformation mechanism to the angle direction.The structural form of composite buffer own is all identical with operating principle in above-mentioned two kinds of arrangements.
Composite buffer based on above technical scheme carries out prestretched to all alloy silks before use, easily produce the position of relative displacement then in building structure by support and connection, interlayer as frame construction, its concrete course of work is: wind carry or little shake effect under, outer connection support is less by the external loads (being the suffered external force of composite buffer) that the reservation connector passes to composite buffer, be not enough to overcome the sliding power (maximum static friction force) of rising of friction shim, this moment, composite buffer was not worked, it can equivalence be common support structure, and whole building utilizes the outside dynamic load of ductility opposing of self.When meeting with violent earthquake, outer connection is supported by reserving connector external loads is passed to composite buffer, the sliding power threshold value that the external force that is subjected to when composite buffer provides greater than its friction shim, reserve connector and be out of shape, enter duty prior to building structural element by the linkage generation rigid body that high-strength bolt drives composite buffer.Because connecting rod is connected by high-strength bolt equally with one heart with alloy silk anchor clamps, so just cause one group of shape-memory alloy wire to be stretched and be in stress state, another group shape-memory alloy wire then is in unloaded state, thereby two groups of shape-memory alloy wires are in structural vibration and add unloaded state repeatedly and form stable super-elasticity hysteresis; Meanwhile, the frictional force that also rotates between friction shim, frictional force direction the movement tendency direction with composite buffer all the time are opposite.In a word, under shock effect consumingly, friction shim and shape-memory alloy wire co-operation rely on super-elasticity hysteretic energy and friction energy-dissipating effectively to improve the damping of building structure, effectively realize the damping control of building structure.After earthquake motion finished, because the recoverable deformation of shape-memory alloy wire super-elasticity is very big, ultimate strength was high, can help composite buffer to recover its original-shape.
This composite buffer that is used for building structure adopts the shape memory alloy material that is in austenitic state under the normal temperature usually; Friction material adopts the copper steel friction usually, also can adopt other stable performance, durable friction material.
In sum, the utlity model has strong, the simple structure, easy for installation of energy dissipation capacity, have necessary advantages such as runback potential energy power, can remedy many deficiencies of prior art.
Description of drawings:
Fig. 1, Pall frcition damper organigram;
Fig. 2 (a), reservation connector schematic diagram of the present utility model;
Fig. 2 (b), friction shim schematic diagram of the present utility model;
Fig. 2 (c), connecting rod schematic diagram of the present utility model;
Fig. 3, elevation of the present utility model;
Fig. 4, lateral view of the present utility model
Fig. 5, hysteresis loop of the present utility model;
Fig. 6, the utility model bidirectional arrangements schematic diagram;
Fig. 7, the unidirectional layout schematic diagram of the utility model;
Among the figure: 1, connect to support 2, friction pad is slidingly connected 3, connecting rod 4, lid 5, reserve connector 6, shape-memory alloy wire 7, alloy silk anchor clamps 8, high-strength bolt 9, friction shim
The specific embodiment:
Enforcement of the present utility model adopts existing processing and mounting technology to make according to Fig. 3.For the superelastic properties of giving full play to shape memory alloy material with avoid shape-memory alloy wire pressurized flexing in the work engineering, before using composite buffer, need shape-memory alloy wire is carried out pre-stretch-draw.Can realize the pre-stretch-draw of shape-memory alloy wire according to having known technology now, the shape-memory alloy wire after the prestretched is fixed in the composite buffer by alloy silk anchor clamps.Shape-memory alloy wire prestretching strain value recommends to be stretched to the half value of the maximum stretching strain of a material, and promptly the silk material is in the mid point of super-elasticity platform.
In this composite buffer, the shape-memory alloy wire diameter of selecting for use is set by known technology, and technology is carried out the processing of memory alloy material routinely.Consider the correlation of memory alloy material service behaviour and temperature, can determine memorial alloy austenite characteristic temperature A according to the difference of building location
f,, make it give full play to superelastic properties to guarantee that material keeps austenitic state in most cases.
In addition, the selection of friction shim will be satisfied requirements such as stability, durability, economy, and position as shown in Figure 4
Carry out theory analysis gained Damper Control power hysteresis loop as shown in Figure 5 according to the operating principle of composite buffer.The full degree of the displacement of damper-restoring force envelope of curve area has reflected the power consumption level of damper, and displacement of the present utility model as seen from Figure 5-restoring force envelope of curve area is very full, illustrates that energy dissipation capacity of the present utility model is fine.
The utility model arrangement such as Fig. 6, shown in Figure 7 in building structure, wherein Fig. 6 is a bidirectional arrangements, wherein Fig. 7 is unidirectional layout.
Claims (1)
1, a kind of marmem-friction composite damper, it includes connecting rod (3), friction shim (9), it is characterized in that: four connecting rods (3) surround a rectangle deformation mechanism, intersection between each bight connecting rod (3) of rectangle deformation mechanism clips reserves connector (5), between the tow sides of reserving connector (5) and connecting rod (3) one group of friction shim (9) is set, promptly high-strength bolt (8) is passed through with connecting rod (3) according to the order of (3)-(9)-(5)-(9)-(3) in each bight of rectangle deformation mechanism, reserving connector (5) is connected with one heart with friction shim (9); Simultaneously, each bight of being enclosed rectangle by connecting rod (3) is used for fixing two groups of SMA silks (6) of rectangle diagonal by high-strength bolt (8) jockey (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520112365 CN2806599Y (en) | 2005-07-08 | 2005-07-08 | Shape memory alloy and friction composite damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520112365 CN2806599Y (en) | 2005-07-08 | 2005-07-08 | Shape memory alloy and friction composite damper |
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| CN2806599Y true CN2806599Y (en) | 2006-08-16 |
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| CN 200520112365 Expired - Fee Related CN2806599Y (en) | 2005-07-08 | 2005-07-08 | Shape memory alloy and friction composite damper |
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| CN (1) | CN2806599Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196017B (en) * | 2008-01-03 | 2010-06-02 | 大连理工大学 | Composite shape memory alloy friction damper |
| CN102635657A (en) * | 2012-04-23 | 2012-08-15 | 哈尔滨工程大学 | Phonon crystal angle bar with multidimensional damping function |
| CN103132626A (en) * | 2011-11-30 | 2013-06-05 | 青岛理工大学 | Self-resetting shape memory alloy support friction damper |
| CN105201097A (en) * | 2015-10-25 | 2015-12-30 | 贵州大学 | Novel friction energy consumption damper |
| CN105421608A (en) * | 2015-10-26 | 2016-03-23 | 南京工业大学 | Self-resetting energy-consumption inhaul cable support |
| CN107386482A (en) * | 2017-08-21 | 2017-11-24 | 武汉理工大学 | A kind of be hinged box-type damper |
| CN107574927A (en) * | 2017-07-19 | 2018-01-12 | 苏州科技大学 | A kind of SMA Self-resettings ductility shears thin plate bracing members |
| CN107906265A (en) * | 2017-11-30 | 2018-04-13 | 上海宝冶集团有限公司 | Inner-walls of duct support device and its construction method |
| CN108412068A (en) * | 2018-02-24 | 2018-08-17 | 广州大学 | A kind of node amplification damper |
| CN109798012A (en) * | 2019-03-15 | 2019-05-24 | 沈阳建筑大学 | A kind of self-replaced type wall piece type pivoting friction damper and its application method |
| CN110230359A (en) * | 2019-06-13 | 2019-09-13 | 山东大学 | A kind of re-centring damper and manufacturing method using wedge block friction energy-dissipating |
| CN115263965A (en) * | 2022-07-26 | 2022-11-01 | 西南交通大学 | Lantern-shaped assembled self-resetting energy dissipater and design method |
-
2005
- 2005-07-08 CN CN 200520112365 patent/CN2806599Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196017B (en) * | 2008-01-03 | 2010-06-02 | 大连理工大学 | Composite shape memory alloy friction damper |
| CN103132626A (en) * | 2011-11-30 | 2013-06-05 | 青岛理工大学 | Self-resetting shape memory alloy support friction damper |
| CN102635657A (en) * | 2012-04-23 | 2012-08-15 | 哈尔滨工程大学 | Phonon crystal angle bar with multidimensional damping function |
| CN105201097A (en) * | 2015-10-25 | 2015-12-30 | 贵州大学 | Novel friction energy consumption damper |
| CN105421608A (en) * | 2015-10-26 | 2016-03-23 | 南京工业大学 | Self-resetting energy-consumption inhaul cable support |
| CN105421608B (en) * | 2015-10-26 | 2017-08-01 | 南京工业大学 | Self-resetting energy-consumption inhaul cable support |
| CN107574927B (en) * | 2017-07-19 | 2023-04-28 | 苏州科技大学 | A kind of SMA self-resetting ductile shear thin plate steel support |
| CN107574927A (en) * | 2017-07-19 | 2018-01-12 | 苏州科技大学 | A kind of SMA Self-resettings ductility shears thin plate bracing members |
| CN107386482A (en) * | 2017-08-21 | 2017-11-24 | 武汉理工大学 | A kind of be hinged box-type damper |
| CN107906265A (en) * | 2017-11-30 | 2018-04-13 | 上海宝冶集团有限公司 | Inner-walls of duct support device and its construction method |
| CN108412068A (en) * | 2018-02-24 | 2018-08-17 | 广州大学 | A kind of node amplification damper |
| CN109798012A (en) * | 2019-03-15 | 2019-05-24 | 沈阳建筑大学 | A kind of self-replaced type wall piece type pivoting friction damper and its application method |
| CN109798012B (en) * | 2019-03-15 | 2024-04-02 | 沈阳建筑大学 | Self-resetting wall-piece type rotary friction damper and use method thereof |
| CN110230359A (en) * | 2019-06-13 | 2019-09-13 | 山东大学 | A kind of re-centring damper and manufacturing method using wedge block friction energy-dissipating |
| WO2020249097A1 (en) * | 2019-06-13 | 2020-12-17 | 山东大学 | Self-resetting damper using wedge-shaped sliding block to realize friction energy dissipation, and manufacturing method for self-resetting damper |
| CN115263965A (en) * | 2022-07-26 | 2022-11-01 | 西南交通大学 | Lantern-shaped assembled self-resetting energy dissipater and design method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
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Granted publication date: 20060816 |