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Displacement magnifying type single scissor supporting damper system and evaluation method of vibration attenuating performance

A damper, a large-scale technology, applied in the direction of building types, buildings, building components, etc., can solve problems such as unfavorable damper energy consumption characteristics, achieve good vibration reduction effect, reliability and stability enhancement, and simple and fast construction operation Effect

Active 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

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a single scissors support damper system with displacement amplification. The displacement and energy dissipation capacity of the traditional damping system are amplified, 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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  • Displacement magnifying type single scissor supporting damper system and evaluation method of vibration attenuating performance
  • Displacement magnifying type single scissor supporting damper system and evaluation method of vibration attenuating performance
  • Displacement magnifying type single scissor supporting damper system and evaluation method of vibration attenuating performance

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0070] If we take the included angle θ 1 is 40°, the length of the rigid rod CF is 2.4m, and the included angle θ 3 is 15°, then the included angle θ can be obtained by calculation 2 About 35.38°, angle θ 4 About 48.20°.

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

[0072]

[0073] At this time, the single scissors support damper system with displacement amplification can amplify the displacement of the damper by 5.503 times.

[0074] From formula (a), we can see that

[0075]

[0076] At this time, the energy E consumed by the reciprocating movement of the single scissors support damper system with displacement Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 7.740 times.

[0077] Not only that, it can be known from formula (c),

[0078]

[0079] fulfil requirements.

[0080] From formula (d), we can see that

[0081]

[0082] fulfil requirements.

[0083] From formula (e), we can see th...

example 2

[0087] If we take the included angle θ 1 is 44°, the length of the rigid rod CF is 2.4m, and the included angle θ 3 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°.

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

[0089]

[0090] At this time, the single scissors support damper system with displacement amplification can amplify the displacement of the damper by 8.51 times.

[0091] From formula (a), we can see that

[0092]

[0093] At this time, the energy E consumed by the reciprocating movement of the single scissors support damper system with displacement Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 13.059 times.

example 3

[0095] If we take the included angle θ 1 is 45°, the length of the rigid rod CF is 2.4m, and the included angle θ 3 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°.

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

[0097]

[0098] At this time, the single scissors support damper system with displacement amplification can amplify the displacement of the damper by 10.759 times.

[0099] From formula (a), we can see that

[0100]

[0101] At this time, the energy E consumed by the reciprocating movement of the single scissors support damper system with displacement Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 17.303 times.

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Abstract

The invention discloses a displacement magnifying type single scissor supporting damper system and evaluation method of vibration attenuating performance, and belongs to the field of vibration attenuating system design. A first hinged joint A, a second hinged joint B and a third hinged joint C of the vibration attenuating system are correspondingly arranged at the top and the bottom of a structurecolumn; a rigid rod AD and a rigid rod AE with the equal length are arranged at the first hinged joint A; the rigid rod AD is connected with a rigid rod DF in a hinged mode through a hinged joint D;the rigid rod AE is connected with a rigid rod EF in a hinged mode through a hinged joint E; a damper is arranged between the hinged joint D and the hinged joint E; the rigid rod DF is connected withthe rigid rod EF in a hinged mode through a hinged joint F; a rigid rod CF is arranged between the hinged joint C and the hinged joint F; a rigid rod BF is arranged between the hinged joint B and thehinged joint F; and the hinged joint B, the hinged joint C and the hinged joint F are not collinear. According to the displacement magnifying type single scissor supporting damper system, the motion displacement of the damper can be magnified, the energy dissipation character and vibration attenuating effect of the damper are fully exerted, and the safety, reliability and stability are improved.

Description

technical field [0001] The invention belongs to the design field of a damper system in a vibration-damping structure, and more specifically relates to a displacement-amplified single-scissors support damper system and a vibration-damping performance evaluation method for damping vibration in a structure. Background technique [0002] With the continuous progress and development of science and technology, the damper system is widely used in aviation, aerospace, military industry, automobile, building structure and other industries to provide movement resistance and consume movement energy. For sensitive building structures such as loads and explosion impact loads, the damper system exhibits excellent vibration and energy dissipation characteristics and displacement control effects, and has good economy, safety and reliability. However, with the frame structure, frame-core tube structure, shear wall structure, frame-shear wall structure and composite structure, etc. become the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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