CN202627247U - Friction damper made of tandem type hyperelastic shape memory alloy - Google Patents
Friction damper made of tandem type hyperelastic shape memory alloy Download PDFInfo
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- CN202627247U CN202627247U CN 201220293001 CN201220293001U CN202627247U CN 202627247 U CN202627247 U CN 202627247U CN 201220293001 CN201220293001 CN 201220293001 CN 201220293001 U CN201220293001 U CN 201220293001U CN 202627247 U CN202627247 U CN 202627247U
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- subplate
- moving bar
- shape memory
- memory alloy
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Abstract
The utility model relates to a friction damper made of a tandem type hyperelastic shape memory alloy. The friction damper comprises a first-stage main plate, a front auxiliary plate, a right movable rod, hyperelastic shape memory alloy wires, limiting sleeves, a left movable rod, high-intensity bolts, a second-stage main plate, a rear auxiliary plate, friction sheets, clamps and spring clamping rings, wherein the first-stage main plate and the second-stage main plate are separately arranged on the same plane; the front auxiliary plate and the rear auxiliary plate are symmetrically arranged on the outer sides of the first-stage main plate and the second-stage main plate; the left movable rod penetrates through the front auxiliary plate, the limiting sleeve, the first-stage main plate, the second limiting sleeve and the rear auxiliary plate; the right movable rod penetrates through the front auxiliary plate, the first-stage main plate and the rear auxiliary plate; the spring clamping rings are clamped on the left movable rod and the right movable rod and are close to the outer surfaces of the front auxiliary plate and the rear auxiliary plate; the hyperelastic shape memory alloy wires are wound on the left movable rod and the right movable rod and are fixed on the left movable rod through the clamps; and the high-intensity bolts connect the front auxiliary plate adhered with the friction sheet, the second-stage main plate and the rear auxiliary plate adhered with the second friction sheet. The friction damper can automatically adjust a working state of an energy consumption unit, is high in energy consumption and has a resetting function.
Description
Technical field
The utility model belongs to technical field of civil engineering, relates to a kind of energy-consuming shock absorber, especially can adjust power consumption cell operation state automatically, the damper with good power consumption and certain reset function.
Background technology
The destruction of building is the main cause that causes earthquake disaster with collapsing in the earthquake.The traditional structure antidetonation is to resist geological process through the intensity, rigidity and the ductility that strengthen structure itself, is promptly stored and earthquake energy by structure itself, and this is uneconomic, also falls flat.The energy-dissipating and shock-absorbing technology is a parallelly connected damper in the lateral resistant member of structure, consumes most of seismic energy by damper, thereby guarantees the safety of agent structure, thereby is active and effective antidetonation strategy.
The conventional damper that has been applied in the actual engineering exists some limitation: the viscoelastic damper fatigue resistance is poor, easy to be aging; The viscous damper easy to leak; Need after the metal yield damper macroseism to upgrade and replacement; Resetting property of frcition damper is poor, and this also is the drawback of above other types damper.Nearly decades, along with the development of made technology, marmem begins to come into field of civil engineering.Marmem is one type has the smart material of memory function to shape, the super-elasticity that it shows at austenite mutually, and recoverable strain can reach 8%～10%, and intensity is high, and is anticorrosive, fatigue resistance good.Utilizing super-elastic shape memory alloy is the damper of unique power consumption developing material, can overcome the drawback of conventional damper, but energy dissipation capacity is limited usually, underdamping.With super-elastic shape memory alloy and other highly energy-consuming combination of materials, utilize advantage exploitation damper separately, be the effective way that addresses this problem.Publication number is the technical scheme that discloses mixed mode shape memory alloy frictional damper in the patent of CN101196017; Be about to the parallelly connected combination of super-elastic shape memory alloy wire so that good power consumption and reset function to be provided with frcition damper; Super-elastic shape memory alloy wire and frcition damper are worked simultaneously in this scheme; Can not adjust the duty of power consumption unit according to earthquake intensity and structure in the response under the earthquake; The problem that produces like this is: the performance of super-elastic shape memory alloy wire is to confirm according to the performance requirement of structure under macroseism, so consumption is more, the energy dissipation capacity of super-elastic shape memory alloy wire fails to give full play to during little the shake; And shape memory alloy material costs an arm and a leg, and therefore sees it is uneconomic from practical standpoint.
Summary of the invention
Deficiency to prior art; The utility model provides a kind of tandem super-elastic shape memory alloy-frcition damper; This damper can be adjusted power consumption cell operation state automatically according to the seismic response of earthquake intensity and engineering structures; Have good power consumption and certain reset function, and simple structure, cheap.
The utility model solves the technical scheme that its technical problem adopted: tandem super-elastic shape memory alloy-frcition damper; Form by one-level mainboard, preceding subplate, right moving bar, super-elastic shape memory alloy wire, spacing collar, the moving bar in a left side, high-strength bolt, secondary mainboard, back subplate, friction plate, anchor clamps and spring clamping ring; It is characterized in that: one-level mainboard and secondary mainboard apart arrangement are on same plane, and its outside symmetric arrangement preceding subplate and back subplate; The moving bar in a left side passes preceding subplate, spacing collar, one-level mainboard, spacing collar and back subplate; Right moving bar passes preceding subplate, one-level mainboard and back subplate; The spring clamping ring is clamped in the moving bar in a left side and moves on the bar with right, near the external surface of preceding subplate with the back subplate; Super-elastic shape memory alloy wire is wrapped in left moving bar and moves on the bar with the right side, is arranged symmetrically in the outside of preceding subplate and back subplate, and is moved on the bar on a left side by clamps; Preceding subplate adopts epoxy bond with friction plate respectively with the back subplate, and high-strength bolt will be stained with preceding subplate, the secondary mainboard of friction plate and be stained with the back subplate connection of friction plate.
Tandem super-elastic shape memory alloy-frcition damper comprises the power consumption unit of two tandem compounds, i.e. marmem unit and friction element.The marmem unit connects the moving bar in a left side by super-elastic shape memory alloy wire and forms with right moving bar and with one-level mainboard, preceding subplate, back subplate, spacing collar, anchor clamps and spring clamping ring; Friction element connects the back subplate be stained with preceding subplate, the secondary mainboard of friction plate and be stained with friction plate by high-strength bolt and forms.During damper designs, require the maximum power output of the force of sliding friction of friction element, regulate the function of power consumption cell operation state automatically to realize damper greater than the marmem unit.Describe for below convenient; Define following notion: 1. the equipoise of damper is the equipoise of marmem unit; That is: the left slotted hole and the right slotted hole of preceding subplate, one-level mainboard and back subplate align respectively, and the moving bar in a left side is abutted against on preceding subplate, one-level mainboard and the back subplate by the super-elastic shape memory alloy wire constraint with right moving bar; 2. the displacement of damper is the relative displacement of one-level mainboard and secondary mainboard; 3. the maximum flexibility displacement of damper is the maximum deformation quantity of super-elastic shape memory alloy wire, and left slotted hole (or the right slotted hole) length that its value equals one-level mainboard (or preceding subplate or back subplate) deducts the diameter that bar (or right moving bar) moved on a left side.
The concrete operating principle of damper is following:
(1) under the tension, the one-level mainboard is away from the secondary mainboard: the one-level mainboard drives right moving bar motion, and the moving bar in a left side is stopped by preceding subplate and back subplate, thereby super-elastic shape memory alloy wire is stretched; When the damper displacement surpasses its maximum flexibility displacement; Right moving bar is stopped by preceding subplate and back subplate; Moving bar in a left side and one-level mainboard bump against; Moving bar in a left side and the right contact force of moving bar and preceding subplate, one-level mainboard and back subplate are greater than the maximum static friction force of friction element, thereby the preceding subplate that then is stained with friction plate receives the drive of one-level mainboard, left moving bar and the moving bar in the right side and secondary mainboard that the relative generation frictional force dissipation energy that slides takes place with the back subplate that is stained with friction plate.During off-load, the restoring force of super-elastic shape memory alloy wire drives right moving bar and the one-level mainboard is back to the equipoise.Spacing collar moves with the moving bar in a left side.
(2) under the pressure effect, the one-level mainboard moves near the secondary mainboard: the one-level mainboard drives the moving bar motion in a left side, and right moving bar is stopped that by preceding subplate and back subplate super-elastic shape memory alloy wire is stretched; When the damper displacement surpasses its maximum flexibility displacement; The moving bar in a left side is stopped by preceding subplate and back subplate; Right moving bar and one-level mainboard bump against; Moving bar in a left side and the right contact force of moving bar and preceding subplate, one-level mainboard and back subplate are greater than the maximum static friction force of friction element, thereby the preceding subplate that then is stained with friction plate receives the drive of one-level mainboard, left moving bar and the moving bar in the right side and secondary mainboard that the relative generation frictional force dissipation energy that slides takes place with the back subplate that is stained with friction plate.During off-load, the restoring force of super-elastic shape memory alloy wire can drive the moving bar in a left side and the one-level mainboard is back to the equipoise.Spacing collar moves with the moving bar in a left side.
In sum: when external load less (or little shake), the damper displacement is during less than the maximum flexibility displacement, only super-elastic shape memory alloy wire consumed energy, and no remaining displacement after the off-load, and damper resets; External load big (or big shake); The damper displacement is during greater than the maximum flexibility displacement; Damper consumes significant amount of energy through the relative slip generation frictional force of friction element, and left moving bar moves the change that relative position no longer takes place owing to the constraint that receives preceding subplate, one-level mainboard and back subplate bar with the right side in the marmem unit, and then super-elastic shape memory alloy wire keeps maximum deformation quantity; Its energy dissipation capacity is given full play to; After the off-load, the deflection of super-elastic shape memory alloy wire recovers, and the relative slippage of friction element is remaining displacement.
The beneficial effect of the utility model is: tandem super-elastic shape memory alloy-frcition damper can be adjusted power consumption cell operation state automatically according to the seismic response of earthquake intensity and engineering structures; Have good power consumption and certain reset function, and simple structure, cheap.
Description of drawings
Fig. 1 is the front view of tandem super-elastic shape memory alloy-frcition damper.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the front view of one-level mainboard among Fig. 2.
Fig. 4 is the B-B sectional drawing of Fig. 3.
Fig. 5 is the C-C sectional drawing of Fig. 3.
Fig. 6 is the D-D sectional drawing of Fig. 3.
Fig. 7 is the front view of secondary mainboard among Fig. 2.
Fig. 8 is the E-E sectional drawing of Fig. 7.
Fig. 9 is the F-F sectional drawing of Fig. 7.
Figure 10 is the front view of preceding subplate among Fig. 2.
Figure 11 is the G-G sectional drawing of Figure 10.
Figure 12 is the H-H sectional drawing of Figure 10.
Figure 13 is the I-I sectional drawing of Figure 10.
Figure 14 is the front view of back subplate among Fig. 2.
Figure 15 is the J-J sectional drawing of Figure 14.
Figure 16 is the K-K sectional drawing of Figure 14.
Figure 17 is the L-L sectional drawing of Figure 14.
Figure 18 is the front view of the moving bar of Fig. 2 right-of-center in political views.
Figure 19 is the vertical view of the moving bar of Fig. 2 right-of-center in political views.
Figure 20 is the front view of the moving bar in a left side among Fig. 2.
Figure 21 is the M-M sectional drawing of Figure 20.
Figure 22 is the front view of spacing collar among Fig. 2.
Figure 23 is the N-N sectional drawing of Figure 22.
Figure 24 is the front view of friction plate among Fig. 2.
Figure 25 is the O-O sectional drawing of Figure 24.
Figure 26 is the front view of Fig. 2 medi-spring clamping ring.
Figure 27 is the P-P sectional drawing of Figure 26.
Among the figure: 1. one-level mainboard, 2. before subplate, 3. right moving bar, 4. super-elastic shape memory alloy wire, 5. spacing collar; 6. bar is moved on a left side, 7. high-strength bolt, 8. secondary mainboard, 9. back subplate, 10. friction plate; 11. anchor clamps, 12. spring clamping rings, the left slotted hole of 13. one-level mainboards, the right slotted hole of 14. one-level mainboards, the pin hole of 15. one-level mainboards; 16. the pin hole of secondary mainboard, the long slot bore of 17. secondary mainboards, the bolt hole of 18. preceding subplates, the left slotted hole of 19. preceding subplates, the right slotted hole of 20. preceding subplates; 21. the bolt hole of back subplate, the left slotted hole of 22. back subplates, the right slotted hole of 23. back subplates, the clamping ring groove of 24. right moving bars; 25. a hole of advancing of bar is moved on a left side, the wire vent holes of the moving bars in 26. left sides, the clamping ring groove of the moving bars in 27. left sides, the bolt hole of 28. friction plates.
The specific embodiment
Be described in detail the specific embodiment of the utility model below in conjunction with technical scheme and accompanying drawing.
(1) respectively under little shake and big shake effect, engineering structures is analyzed, according to the performance requirement that will reach, confirm the size and the parameter of damper.
(2) preceding subplate 2 has identical structure with back subplate 9.The moving bar 6 in a left side has identical diameter with right moving bar 3.The left slotted hole 22 of the left slotted hole 19 of the left slotted hole 13 of one-level mainboard, preceding subplate and back subplate has same size; The right slotted hole 23 of the right slotted hole 20 of the right slotted hole 14 of one-level mainboard, preceding subplate and back subplate has same size.The bolt hole 21 of the bolt hole 18 of preceding subplate, back subplate and the bolt hole 28 of friction plate have same size.
(3) adopt epoxy resin that preceding subplate 2 and back subplate 9 are bondd with friction plate 10 respectively.The bolt hole 21 of the bolt hole 18 of preceding subplate, back subplate is coaxial with the bolt hole 28 of friction plate.
(4) one-level mainboard 1 and secondary mainboard 8 apart arrangement are on same plane, and its spacing satisfies damper displacement requirement.Preceding subplate 2 and back subplate 9 are arranged symmetrically in the outside of one-level mainboard 1 and secondary mainboard 8.Left slotted hole 22 vertical non-alignment of the left slotted hole 19 of preceding subplate, the left slotted hole 13 of one-level mainboard and back subplate; Right slotted hole 23 vertical non-alignment of the right slotted hole 20 of preceding subplate, the right slotted hole 14 of one-level mainboard and back subplate.Spacing collar 5 be located between one-level mainboard 1 and the preceding subplate 2 respectively and one-level mainboard 1 and back subplate 9 between, to limit the installation site and the direction of motion of one-level mainboard 1; Between spacing collar 5 and preceding subplate 2, one-level mainboard 1 and the back subplate 9 tolerances is arranged, spacing collar 5 is with preceding subplate 2, one-level mainboard 1 with afterwards produce frictional force between the subplate 9 when avoiding relative motion.The bolt hole 21 of the bolt hole 18 of preceding subplate and back subplate all is positioned at the middle part of the long slot bore 17 of secondary mainboard.
(5) two high-strength bolts 7 pass the preceding subplate that is stained with friction plate 10 bolt hole 18, secondary mainboard long slot bore 17 and be stained with the bolt hole 21 of the back subplate of friction plate 10; The preceding subplate 2 that is stained with friction plate 10, secondary mainboard 8 and the back subplate 9 that is stained with friction plate 10 are connected, and apply normal pressure.
(6) the left slotted hole 22 of left slotted hole 13, spacing collar 5 and the back subplate of the left slotted hole 19 of subplate, spacing collar 5, one-level mainboard before the moving bar 6 in a left side passes; The right slotted hole 23 of the right slotted hole 14 of the right slotted hole 20 of subplate, one-level mainboard and back subplate before right moving bar 3 passes.The moving bar 6 in a left side is at the clamping ring groove 27 that is provided with the moving bar in a left side near the preceding subplate 2 and the outer surface of back subplate 9; Right moving bar 3 is at the clamping ring groove 24 that is provided with right moving bar near the preceding subplate 2 and the outer surface of back subplate 9.Spring clamping ring 12 is clamped in clamping ring groove 27 places of the moving bar in a left side and clamping ring groove 24 places of right moving bar respectively, to limit the installation site and the direction of motion of moving bar 6 in a left side and right moving bar 3.
(7) super-elastic shape memory alloy wire 4 is wrapped in the moving bar 6 in a left side and moves on the bar 3 outside of subplate 2 and back subplate 9 before being arranged symmetrically in right.The initiating terminal of super-elastic shape memory alloy wire 4 and clearing end pass the wire vent hole 26 of advancing a hole 25 and the moving bar in a left side of the moving bar in a left side respectively, are fixed on the moving bar 6 in a left side with anchor clamps 11.
(8) damper connects with the engineering structures pin through the pin hole 15 of one-level mainboard and the pin hole 16 of secondary mainboard.
Claims (1)
1. tandem super-elastic shape memory alloy-frcition damper; Form by one-level mainboard (1), preceding subplate (2), right moving bar (3), super-elastic shape memory alloy wire (4), spacing collar (5), the moving bar (6) in a left side, high-strength bolt (7), secondary mainboard (8), back subplate (9), friction plate (10), anchor clamps (11) and spring clamping ring (12); It is characterized in that: one-level mainboard (1) and secondary mainboard (8) apart arrangement are on same plane, and its outside symmetric arrangement preceding subplate (2) and back subplate (9); The moving bar (6) in a left side passes preceding subplate (2), spacing collar (5), one-level mainboard (1), spacing collar (5) and back subplate (9); Right moving bar (3) passes preceding subplate (2), one-level mainboard (1) and back subplate (9); Spring clamping ring (12) is clamped on moving bar (6) in a left side and the right moving bar (3), near the external surface of preceding subplate (2) and back subplate (9); Super-elastic shape memory alloy wire (4) is wrapped on moving bar (6) in a left side and the right moving bar (3), is arranged symmetrically in the outside of preceding subplate (2) and back subplate (9), and is fixed on the moving bar (6) in a left side by anchor clamps (11); Preceding subplate (2) and back subplate (9) adopt epoxy bond with friction plate (10) respectively, and high-strength bolt (7) will be stained with preceding subplate (2), the secondary mainboard (8) of friction plate (10) and be stained with back subplate (9) connection of friction plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293001 CN202627247U (en) | 2012-06-21 | 2012-06-21 | Friction damper made of tandem type hyperelastic shape memory alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293001 CN202627247U (en) | 2012-06-21 | 2012-06-21 | Friction damper made of tandem type hyperelastic shape memory alloy |
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| CN202627247U true CN202627247U (en) | 2012-12-26 |
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| CN 201220293001 Expired - Fee Related CN202627247U (en) | 2012-06-21 | 2012-06-21 | Friction damper made of tandem type hyperelastic shape memory alloy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720283A (en) * | 2012-06-21 | 2012-10-10 | 河北工业大学 | Superelastic shape memory alloy and friction cascade combined damper |
| CN107939137A (en) * | 2017-12-27 | 2018-04-20 | 华侨大学 | A kind of marmem piezoelectric friction damper device |
| CN108729568A (en) * | 2018-05-21 | 2018-11-02 | 黄淮学院 | A kind of box tandem type SMA frictions composite buffer |
| CN113123479A (en) * | 2021-03-09 | 2021-07-16 | 河北工业大学 | Friction unit and self-resetting type three-series friction energy dissipation supporting structure |
-
2012
- 2012-06-21 CN CN 201220293001 patent/CN202627247U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720283A (en) * | 2012-06-21 | 2012-10-10 | 河北工业大学 | Superelastic shape memory alloy and friction cascade combined damper |
| CN107939137A (en) * | 2017-12-27 | 2018-04-20 | 华侨大学 | A kind of marmem piezoelectric friction damper device |
| CN108729568A (en) * | 2018-05-21 | 2018-11-02 | 黄淮学院 | A kind of box tandem type SMA frictions composite buffer |
| CN108729568B (en) * | 2018-05-21 | 2024-01-12 | 黄淮学院 | Box type serial SMA friction composite damper |
| CN113123479A (en) * | 2021-03-09 | 2021-07-16 | 河北工业大学 | Friction unit and self-resetting type three-series friction energy dissipation supporting structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CNCEC CANGZHOU COOLING TECHNOLOGY CO., LTD. Assignor: Hebei University of Technology Contract record no.: 2013130000080 Denomination of utility model: Friction damper made of tandem type hyperelastic shape memory alloy Granted publication date: 20121226 License type: Exclusive License Record date: 20130828 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20190621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |