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Articulated scissor supporting damper system and vibration damping effectiveness evaluation method

A damper and articulated technology, applied in the field of damper vibration reduction, can solve problems such as unfavorable damper energy consumption characteristics, and achieve the effects of good vibration reduction effect, enhanced reliability and stability, and simple and fast construction operation.

Pending Publication Date: 2019-04-02
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 vibration damping system and a vibration damping performance evaluation method of an articulated scissor support damper. 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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  • Articulated scissor supporting damper system and vibration damping effectiveness evaluation method
  • Articulated scissor supporting damper system and vibration damping effectiveness evaluation method
  • Articulated scissor supporting damper system and vibration damping effectiveness evaluation method

Examples

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Effect test

example 1

[0065] If we take the included angle θ 1 , included angle θ 2 , included angle θ 3 and the included angle θ 4 Both are 50°, angle θ 5 , included angle θ 6 , included angle θ 7 and angle θ 8 is 10°.

[0066] From formula (b), we can see that

[0067]

[0068] At this time, the articulated scissors support damper vibration reduction system can amplify the displacement of the damper by 14.582 times.

[0069] From formula (a), we can see that

[0070]

[0071] At this time, the energy E Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 24.922 times.

[0072] Not only that, it can be known from formula (c),

[0073]

[0074] fulfil requirements.

[0075] From formula (d), we can see that

[0076]

[0077] fulfil requirements.

[0078] From formula (e), we can see that

[0079]

[0080] Meet the design requirements.

example 2

[0082] If we take the included angle θ 1 , included angle θ2 , included angle θ 3 and the included angle θ 4 Both are 45°, the included angle θ 5 , included angle θ 6 , included angle θ 7 and angle θ 8 is 10°.

[0083] From formula (b), we can see that

[0084]

[0085] At this time, the articulated scissors support damper vibration reduction system can amplify the displacement of the damper by 16.041 times.

[0086] From formula (a), we can see that

[0087]

[0088] At this time, the energy E Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 27.943 times.

example 3

[0090] If we take the included angle θ 1 , included angle θ 2 , included angle θ 3 and the included angle θ 4 Both are 40°, the included angle θ 5 , included angle θ 6 , included angle θ 7 and angle θ 8 is 10°.

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

[0092]

[0093] At this time, the articulated scissors support damper vibration reduction system can amplify the displacement of the damper by 17.378 times.

[0094] From formula (a), we can see that

[0095]

[0096] At this time, the energy E Dη is the energy E consumed by a cycle of reciprocating motion of the traditional equal displacement damper system D 30.761 times.

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Abstract

The invention discloses an articulated scissor supporting damper damping system and a vibration damping effectiveness evaluation method, and belongs to the field of vibration damping system design. The articulated scissor supporting damper damping system comprises an upper left damper MN, an upper right damper TU, a lower left damper RS, a lower right damper PQ, rigid rods EM, FN, GP, HQ, IR, JS,KT, LU, AE , EO, AF, FO, BK, KO, BL, LO, CI, IO, CJ, JO, DG, GO, DH and HO, hinge points A-L and a hinge point O. The rigid rods are hinged to the hinge points according to the letter correspondence,and are rigidly connected with the corresponding dampers. The articulated scissor supporting damper damping system can effectively amplify the motion displacement of the dampers, increases the cycle energy consumption of the reciprocating motion of the system, gives fully play to the vibration damping and energy dissapition characteristics of the dampers, ensures the normal use of structural engineering under the action of a strong earthquake load, a wind load and an explosion impact load and the like, enhances the safety, reliability and stability of the structure, is economical and practical, and has convenient and quick for construction operation.

Description

technical field [0001] The invention belongs to the field of vibration reduction of dampers, and more specifically relates to a vibration reduction system of a articulated scissors support damper and a method for evaluating vibration reduction performance. 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 sensitive to eart...

Claims

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Application Information

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