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A liquid damped tuned mass damper

A technology of tuning mass damping and liquid damping, which is applied in climate sustainability, building components, earthquake resistance, etc., can solve problems such as oil leakage hazards, and achieve the effect of reducing installation space, simple structure, and easy installation

Active Publication Date: 2021-07-20
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a liquid damping tuned mass damper, which solves the problem of hidden oil leakage in the viscous damping existing in the prior art

Method used

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  • A liquid damped tuned mass damper
  • A liquid damped tuned mass damper

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Embodiment Construction

[0021] The invention will be further described below in conjunction with the accompanying drawings:

[0022] A liquid damped tuned mass damper, such as figure 1 As shown, the base plate 1 is included, the base plate 1 is provided with a linear slide rail 2, the two ends of the base plate 1 are provided with side plates 4, and a liquid storage tank 11 is provided between the side plates 4, and the two sides of the liquid storage tank 11 are connected by linear springs 5 ​​and The side plate 4 is connected, and in the direction perpendicular to the linear spring 5, the outer wall of the liquid storage tank 11 is connected with the fixed support 12 through a nonlinear spring 13, and the bottom of the liquid storage tank 11 is fixedly connected with a slider 6, and the slider 6 It can slide along the linear slide rail 2 , the liquid storage tank 11 is provided with a solution 7 inside, and the inner wall of the liquid storage tank 11 is provided with a cross bar 9 , and the cross ...

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Abstract

The invention provides a liquid damping tuned mass damper. The vibration damping device is mainly composed of a sliding rail, a spring, a liquid storage tank and a rectangular metal pendulum block. The liquid damping can replace the hydraulic viscosity in the traditional TMD (tuned mass damper). Hysteresis damping, suitable for high-rise buildings, offshore drilling platforms, wind turbines and other structures, with simple structure, easy installation, economical and environmental protection. Replace the expensive damper with a simple device formed from the liquid in the reservoir and a rectangular metal pendulum. Non-linear springs are used to reduce vibration frequency bandwidth. No external energy is needed. Aiming at the problem that the existing tuned mass damper is sensitive to vibration frequency and high cost, a nonlinear stiffness liquid damping TMD is proposed. The spring system part adopts nonlinear spring, the frequency band is widened, and the damping system part adopts liquid damping. Reduce installation space, greatly reduce costs, both economical and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of structural vibration control, and in particular relates to a liquid damping tuned mass damper. Background technique [0002] As the height of buildings increases and the number of offshore drilling platforms increases, these engineering structures are prone to vibration under the excitation of external loads, especially under extreme loads such as strong winds and waves, which will lead to structural performance degradation, loss of stability and damage or even collapse. Therefore, a simpler, economical and safer shock absorber is needed. [0003] Tuned mass damper is mainly composed of mass block system, spring system and damping system. Due to its simple structure and low cost, it is widely used in large-scale structures for wind resistance and earthquake resistance. The vibration suppression effect of the damper is very sensitive to the vibration frequency of the structure, and the vibration reduction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98
CPCY02B10/30
Inventor 穆安乐胡俊灿聂磊王鹏王丹
Owner XIAN UNIV OF TECH
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