CN205557886U - Compound friction damper of piston shape memory alloy - Google Patents

Compound friction damper of piston shape memory alloy Download PDF

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Publication number
CN205557886U
CN205557886U CN201620292608.0U CN201620292608U CN205557886U CN 205557886 U CN205557886 U CN 205557886U CN 201620292608 U CN201620292608 U CN 201620292608U CN 205557886 U CN205557886 U CN 205557886U
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China
Prior art keywords
memory alloy
piston
alloy wire
wire cable
shape
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Expired - Fee Related
Application number
CN201620292608.0U
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Chinese (zh)
Inventor
赵大海
刘洋
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Yanshan University
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Yanshan University
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Priority to CN201620292608.0U priority Critical patent/CN205557886U/en
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Publication of CN205557886U publication Critical patent/CN205557886U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a compound friction damper of piston shape memory alloy is a device of being applied to engineering shock attenuation field. Mainly form by outer cylinder, last lower cylinder cover, piston, sliding shaft, connecting rod, shape memory alloy silk cable, secondary spring, adjusting bolt etc. Its characteristics lie in: adopt a plurality of pistons and the contact friction of a master cylinder section of thick bamboo, the contact is stable, and the action is reliable, with shape memory alloy silk cable combination power consumption, has good power consumption effect. The preload accessible adjusting bolt adjustment of shape memory alloy silk cable. Reciprocating motion is made to the piston that this attenuator passes through in the outer cylinder of sliding shaft atress drive to the shape memory alloy silk cable that drives the inner piston both sides is tensile, produces super elastic damping, and the damping force is stable. Under the combined action of shape memory alloy silk cable and secondary spring, runback potential energy power is good. This attenuator has the characteristics that damping damping performance is good, the structure preparation is simple and convenient, the wholeness is good, the atress is clear and definite and easily install and change.

Description

Piston type marmem composite friction damper
Technical field
This utility model belongs to Structural Engineering shockproof control field, relates to a kind of piston type marmem composite friction damper, at the dynamic respons of Structures under Earthquake, engineering structure is played inhibitory action, reaches the effect of energy-dissipating and shock-absorbing.
Background technology
Marmem, as a kind of new material, has advantages such as durability, corrosion resistance and Self-resetting, but the equivalent viscous damping of marmem be not sufficient to make marmem as unique damping unit.Being based only upon the earthquake of marmem and control device when bearing dynamic loads, its energy dissipation provided will be smaller.Frcition damper is that a class utilizes the friction energy-dissipating of rubbing surface to a kind of device that controls of the vibrational energy that dissipates, and its simple structure, easy for installation, power consumption property is good, and performance not temperature influence, is a kind of energy-consumption shock-absorption device conventional in building structure.The super-elasticity of marmem and self-resetting capability are to be widely studied in engineering shockproof control field, and the research of marmem and classical frcition damper combination application also has become as focus.
Summary of the invention
Based on above technical research background, the purpose of this utility model is to provide a kind of piston type marmem composite friction damper being applied to engineering field of shock absorption.
In order to realize above-mentioned technical goal, this utility model is to be realized by following technical scheme:
A kind of piston type marmem composite friction damper, by outer cylinder (1), upper cylinder cover (2), lower cylinder cap (3), inner carrier (4), outer piston (5), sliding axle (6), connecting rod (7), secondary spring (8), regulation bolt (9), connect outer cylinder and the flat head screw (10) of cylinder cap, the latch (11) of fixed connecting rod, the annular clip (13) of fixed piston, shape-memory alloy wire cable gim peg (15), spring fastening (16), flush end trip bolt (18), friction material (19), shape-memory alloy wire cable (20) forms.Described piston type marmem composite friction damper, by inner carrier (4), outer piston (5) and shape-memory alloy wire cable (20) cooperation, consumes inputting seismic energy.Cylinder cap (3) under upper cylinder cover and (2) is connected with outer piston (5) by secondary spring (8) by spring fastening (16), the location of piston and shape-aided memory alloy wire cable Self-resetting when being used for installing.Friction material (19) between piston and outer cylinder is coated on outer cylinder.Shape-memory alloy wire cable (20) arranges four along outer cylinder (1) axisymmetrical, it is connected through inner carrier (4) and outer piston (5) with regulation bolt (9), scalable shape-memory alloy wire cable (20) preload.Described shape-memory alloy wire cable (20) is only fastened together with inner carrier (4), and fix with inner carrier (4) with flush end trip bolt (18), to increase shape-memory alloy wire cable stroke, increase energy dissipation capacity.
The stretching of this utility model application shape-memory alloy wire cable realizes energy dissipation jointly with piston friction, and energy consumption effect is good.Piston type marmem composite friction damper involved by this utility model has the advantages that damping characteristics is excellent, structure fabrication is easy, good integrity, stress clear and definite and is easily installed and changes.In this utility model, piston connects secondary spring and shape-memory alloy wire cable, has good self-resetting capability.Technique effect is embodied in the following aspects:
1, the piston type marmem composite friction damper involved by this utility model drives the piston in outer cylinder reciprocating by sliding shaft rod stress, and drive the shape-memory alloy wire cable of inner carrier both sides to stretch, producing superelastic hysteretic damping, damping force is stable.
2, the piston type marmem composite friction damper involved by this utility model uses multiple pistons to contact friction with master cylinder cylinder, and contact is stable, reliable in action;Use the mode of piston and shape-memory alloy wire cable combination power consumption, there is good energy consumption effect.
3, the piston type marmem composite friction damper involved by this utility model has wide range of applications, and can be used for the control of the engineering structure vibration that horizontal earthquake vibration causes with vertical motion;It is possible not only to apply the energy-dissipating and shock-absorbing of building structure superstructure component, it may also be used for the vibration damping of the various engineering structure such as bridge structure and large-span structure.Solve conventional damper and need a large amount of connector and constant shortcoming of constructing in the application.
Accompanying drawing explanation
Fig. 1 is the solid appearance schematic top plan view of antivibrator.
Fig. 2 is the upper cylinder cover schematic appearance of antivibrator.
Fig. 3 is the lower cylinder cap schematic appearance of antivibrator.
Fig. 4 is antivibrator A-A generalized section.
Fig. 5 is antivibrator B-B generalized section.
Fig. 6 is antivibrator C-C generalized section.
Fig. 7 is sliding axle schematic diagram in antivibrator.
Fig. 8 is secondary spring schematic diagram in antivibrator.
In figure: 1, outer cylinder;2, upper cylinder cover;3, lower cylinder cap;4, inner carrier;5, outer piston;6, sliding axle;7, connecting rod;8, secondary spring;9, regulation bolt;10, flat head screw;11, latch;12, screw thread;13, annular clip;14, perforate;15, shape-memory alloy wire cable gim peg;16, spring fastening;17, adjusting nut;18, flush end trip bolt;19, friction material;20, shape-memory alloy wire cable.
Detailed description of the invention
Below in conjunction with the accompanying drawings with the technical scheme detailed description present invention:
Sliding axle (6) connects fixing through upper cylinder cover (2) freely slidable, connecting rod (7) by latch (11) with lower cylinder cap (3).Shape-memory alloy wire cable (20) arranges four along outer cylinder (1) axisymmetrical, it is connected through inner carrier (4) and outer piston (5) with regulation bolt (9), the preload of scalable shape-memory alloy wire cable (20).Shape-memory alloy wire cable (20) and inner carrier (4) are effectively fastened together by shape-memory alloy wire cable gim peg (15) in inner carrier (4) perforate (14), and fix with inner carrier (4) with flush end trip bolt (18).Inner carrier (4) and outer piston (5) are by screw thread (12) and sliding axle (6) compact siro spinning technology and pass through annular clip (13) and be fixed together with sliding axle (6).Outer piston (5) and inner carrier (4) are along its circle core shaft symmetry perforate (14), for shape-memory alloy wire cable (20) through being connected with upper cylinder cover (2) and lower cylinder cap (3), and shape-memory alloy wire cable gim peg (15) can be laid.Sliding axle (6) drives inner carrier (4) and outer piston (5) to move back and forth, thus friction energy-dissipating;Inner carrier makes the shape-memory alloy wire cable (20) of pretension produce stretching simultaneously, relies on its superelastic hysteretic damping to consume energy.Cylinder cap (3) under upper cylinder cover and (2) is connected with outer piston (5) by secondary spring (8) by spring fastening (16), and when being used for installing, the initial alignment of piston and shape-aided memory alloy wire cable (20) realize the Self-resetting of piston.Friction material (19) between piston and outer cylinder (1) is arranged on outer cylinder, is convenient for changing.

Claims (4)

1. a piston type marmem composite friction damper, by outer cylinder (1), upper cylinder cover (2), lower cylinder cap (3), inner carrier (4), outer piston (5), sliding axle (6), connecting rod (7), secondary spring (8), regulation bolt (9), connect outer cylinder and the flat head screw (10) of cylinder cap, the latch (11) of fixed connecting rod, the annular clip (13) of fixed piston, shape-memory alloy wire cable gim peg (15), spring fastening (16), flush end trip bolt (18), friction material (19), shape-memory alloy wire cable (20) forms.
Piston type marmem composite friction damper the most according to claim 1, it is characterized in that: the inner carrier (4) of described antivibrator, outer piston (5) and shape-memory alloy wire cable (20) cooperation, consume inputting seismic energy.
Piston type marmem composite friction damper the most according to claim 1 and 2, it is characterized in that: cylinder cap (3) under upper cylinder cover and (2) is connected with outer piston (5) by described secondary spring (8) by spring fastening (16), piston location and shape-aided memory alloy wire cable Self-resetting when being used for installing;Friction material (19) between described piston and outer cylinder is coated on outer cylinder.
Piston type marmem composite friction damper the most according to claim 1 and 2, it is characterized in that: described shape-memory alloy wire cable (20) arranges four along outer cylinder (1) axisymmetrical, it is connected through inner carrier (4) and outer piston (5) with regulation bolt (9), scalable shape-memory alloy wire cable (20) preload;Described shape-memory alloy wire cable (20) is only fastened together with inner carrier (4), and fix with inner carrier (4) with flush end trip bolt (18), to increase shape-memory alloy wire cable stroke, increase energy dissipation capacity.
CN201620292608.0U 2016-04-11 2016-04-11 Compound friction damper of piston shape memory alloy Expired - Fee Related CN205557886U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620292608.0U CN205557886U (en) 2016-04-11 2016-04-11 Compound friction damper of piston shape memory alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620292608.0U CN205557886U (en) 2016-04-11 2016-04-11 Compound friction damper of piston shape memory alloy

Publications (1)

Publication Number Publication Date
CN205557886U true CN205557886U (en) 2016-09-07

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Family Applications (1)

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Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106996433A (en) * 2017-04-24 2017-08-01 东南大学 A kind of frictional bidirectional tuning mass damper
CN107143187A (en) * 2017-06-30 2017-09-08 燕山大学 Multi-layer plate-type SMA Piezoelectric anisotropy frcition dampers
CN109024970A (en) * 2017-06-08 2018-12-18 大连大学 For the damper of fire-fighting and the coating method of fireprotection layer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106996433A (en) * 2017-04-24 2017-08-01 东南大学 A kind of frictional bidirectional tuning mass damper
CN106996433B (en) * 2017-04-24 2019-02-12 东南大学 A kind of frictional bidirectional tuning mass damper
CN109024970A (en) * 2017-06-08 2018-12-18 大连大学 For the damper of fire-fighting and the coating method of fireprotection layer
CN107143187A (en) * 2017-06-30 2017-09-08 燕山大学 Multi-layer plate-type SMA Piezoelectric anisotropy frcition dampers

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160907

Termination date: 20170411