Bidirectional variable-curvature variable-friction pendulum type tuned mass damper

A technology of tuning mass damping and variable curvature, which is applied in the direction of protective buildings/shelters, building types, buildings, etc., and can solve the problems that friction pendulum TMD cannot effectively absorb energy, reduce energy consumption efficiency of friction pendulum TMD, and structure Space utilization rate and benefit reduction and other issues, to achieve excellent two-way shock absorption and energy consumption effect, stable and continuous self-adaptive effect, simple structure effect

Pending Publication Date: 2022-05-13
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the shear TMD and the traditional pendulum TMD need more space to set up stiffness elements (springs, rails, suspension cables, etc.) and damping elements (oil dampers, etc.) to ensure the shock absorption control efficiency of TMD. Will result in reduced utilization and benefits of structural space
The traditional friction pendulum TM

Method used

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  • Bidirectional variable-curvature variable-friction pendulum type tuned mass damper
  • Bidirectional variable-curvature variable-friction pendulum type tuned mass damper
  • Bidirectional variable-curvature variable-friction pendulum type tuned mass damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] combine Figure 1 to Figure 3 As shown, this embodiment provides a support seat plate 1 for a two-way variable curvature variable friction pendulum tuned mass damper. Adaptive contact surface, the contact surface is a concave arc surface, on the contact surface from bottom to top, there are a plurality of smoothly connected spherical concave surfaces, a friction layer is provided on each spherical concave surface, and the radius of the multiple spherical concave surfaces is from The coefficients of friction decrease sequentially from bottom to top, and the friction coefficients of the friction layers of multiple spherical concave surfaces increase sequentially from bottom to top.

[0031] The upper surface 13 of the support seat plate 1 is used to contact the lower sliding surface 21 of the slider 2 (ie, the lower surface of the slider 2); figure 1 As shown, in this embodiment, the contact surface of the upper surface 11 of the support seat plate 1 is a concave arc surfac

Embodiment 2

[0042] combine Figure 1 to Figure 3 As shown, this embodiment provides a two-way variable curvature and variable friction pendulum tuned mass damper, including an inertial mass 4 and at least one support set, each support set includes a support member 3, a slider 2 and the first embodiment. The base plate 1 is supported, the connecting support member 3 is arranged below the inertial mass block 4 , the upper part of the slider 2 is connected with the connecting support member 3 , and the lower surface of the slider 2 is contacted and connected with the contact surface of the supporting base plate 1 .

[0043] In this embodiment, there is no strict limit on the number of sets of supporting sets, and one inertial mass 4 can be equipped with multiple matching supporting sets of the same type according to the actual situation.

[0044] The connecting support member 3 is located under the inertial mass 4, and can be fixedly connected to the inertial mass 4 through detachable connector

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PUM

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Abstract

The invention provides a bidirectional variable-curvature variable-friction pendulum type tuned mass damper. The supporting seat plate of the bidirectional variable-curvature variable-friction pendulum type tuned mass damper comprises a seat plate body, the seat plate body is provided with a contact face matched with a lower sliding face of a sliding block, the contact face is a concave arc face, a plurality of spherical concave faces which are in smooth connection are sequentially arranged on the contact face from bottom to top, a friction layer is arranged on each spherical concave face, and the friction layers are arranged on the spherical concave faces. The radiuses of the plurality of spherical concave surfaces are sequentially reduced from bottom to top, and the friction coefficients of the friction layers of the plurality of spherical concave surfaces are sequentially increased from bottom to top. The bidirectional variable-curvature variable-friction pendulum type tuned mass damper can provide a stable and continuous self-adaptive effect and an excellent bidirectional damping and energy dissipation effect for a controlled structure under different environmental loads, and the purpose of effectively controlling vibration of the structure in three main shaft directions under a Cartesian coordinate system at the same time through one inertial mass block can be achieved; the structure is simple, and the construction is convenient.

Description

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Claims

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Application Information

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Owner GUANGZHOU UNIVERSITY
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