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Double-scissor support damper system with displacement amplification function and vibration damping effectiveness evaluation method

A damper, a large-scale technology, applied in the field of damper vibration reduction, can solve the problems of unfavorable damper energy consumption characteristics, etc., achieve the effect of enhanced reliability and stability, and simple and fast construction operation

Pending Publication Date: 2019-03-01
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a displacement-amplified double-scissors support damper system and a vibration reduction performance evaluation method. The design of the connection structure between the dampers amplifies the displacement and energy dissipation capacity of the damper, thereby solving the technical problem that the traditional damping system is not conducive to the effective performance of the energy dissipation characteristics of the damper when the deformation between the structural layers is small

Method used

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  • Double-scissor support damper system with displacement amplification function and vibration damping effectiveness evaluation method
  • Double-scissor support damper system with displacement amplification function and vibration damping effectiveness evaluation method
  • Double-scissor support damper system with displacement amplification function and vibration damping effectiveness evaluation method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0067] If we take the included angle θ 1 is 40°, the length of the rigid rod CG is 2.4m, and the included angle θ 3 is 15°, the included angle θ 5 is 15°, then the included angle θ can be obtained by calculation 2 About 35.38°, angle θ 4 About 48.20°.

[0068] From formula (b), we can see that

[0069]

[0070] At this time, the double scissors support damper system with displacement amplification can amplify the displacement of the damper by 10.283 times.

[0071] From formula (a), we can see that

[0072]

[0073] At this time, the energy E consumed by a cycle of reciprocating motion of the double scissors support damper system with displacement amplification Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 16.389 times.

[0074] Not only that, it can be known from formula (c),

[0075]

[0076] fulfil requirements.

[0077] From formula (d), we can see that

[0078]

[0079] fulfil re...

example 2

[0084] If we take the included angle θ 1 is 44°, the length of the rigid rod CG is 2.4m, and the included angle θ 3 is 15°, the included angle θ 5 is 15°, then the included angle θ can be obtained by calculation 2 About 39.15°, the included angle θ 4 It is about 48.24°.

[0085] From formula (b), we can see that

[0086]

[0087] At this time, the double scissors support damper system with displacement amplification can amplify the displacement of the damper by 16.229 times.

[0088] From formula (a), we can see that

[0089]

[0090] At this time, the energy E consumed by a cycle of reciprocating motion of the double scissors support damper system with displacement amplification Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 28.337 times.

example 3

[0092] If we take the included angle θ 1 is 45°, the length of the rigid rod CG is 2.4m, and the included angle θ 3 is 15°, the included angle θ 5 is 15°, then the included angle θ can be obtained by calculation 2 About 40.10°, the included angle θ 4 It is about 48.27°.

[0093] From formula (b), we can see that

[0094]

[0095] At this time, the double scissors support damper system with displacement amplification can amplify the displacement of the damper by 20.772 times.

[0096] From formula (a), we can see that

[0097]

[0098] At this time, the energy E consumed by a cycle of reciprocating motion of the double scissors support damper system with displacement amplification Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 38.104 times.

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Abstract

The invention discloses a double-scissor support damper system with displacement amplification function and a vibration damping effectiveness evaluation method, and belongs to the field of vibration damping system design. The double-scissor support damper system is provided with an upper damper MN, a lower damper PQ, fourteen rigid rods and nine hinge points A to I; the fourteen rigid rods are separately the rigid rod FN, the rigid rod EM, the rigid rod IQ, the rigid rod HP, the rigid rod AF, the rigid rod AE, the rigid rod FG, the rigid rod EG, the rigid rod IG, the rigid rod HG, the rigid rod DI, the rigid rod DH, the rigid rod BG and the rigid rod CG; the point B, the point C and the point G are not collinear; and the rigid rods are correspondingly hinged to the hinge points according to the letter correspondence, and are rigidly connected with the corresponding dampers. The motion displacement of the dampers can be effectively amplified, the cycle energy consumption of reciprocating motion of the system is increased, the vibration damping and energy dissipation characteristics of the dampers are fully utilized, normal use of a structural engineering under the actions of strongearthquake load, wind load, explosion impact load and the like is ensured, the safety, reliability and stability of the structure are enhanced, the double-scissor support damper system is economical and practical, and construction operation is convenient and quick.

Description

technical field [0001] The invention belongs to the field of damper vibration reduction, and more specifically relates to a vibration reduction system and a vibration reduction efficiency evaluation method of a double-scissors support damper with displacement amplification. Background technique [0002] With the improvement of modern living standards, people begin to pay more and more attention to the quality of life, personal safety and property safety, especially in terms of the safety, durability and comfort of the building structures where people live. Therefore, the development of energy dissipation and vibration reduction technology for building structures has been paid more and more attention by people. As an effective vibration reduction and energy dissipation device, the damper system can effectively control the dynamic response of the structure to provide movement resistance and reduce movement energy. It is widely used, especially for building structures that are...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02E04H9/14E04H9/04
CPCE04B1/98E04H9/021E04H9/04E04H9/14Y02T90/00
Inventor 周方圆冯欢朱宏平王菲菲
Owner HUAZHONG UNIV OF SCI & TECH
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