An experimental investigation of an inertial viscous damper and its damping effect on a cable

被引：0
|
作者：
Liu J. [1 ]
Liang D. [1 ,2 ]
机构：
[1] School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin
[2] Civil Engineering Technology Research Center of Hebei Province, Tianjin
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 08期
关键词：
Cable test; Damping performance; Improved Galerkin's method; Inertial viscous damper; Numerical calculation;
D O I：
10.13465/j.cnki.jvs.2022.08.011
中图分类号：
学科分类号：
摘要：
A prototype of an inertial viscous damper for cables, composed of rack and pinion, inertial element, and viscous damping element, was fabricated. Detailed experimental investigation of stay cables' vibration control was carried out. A cable-damper system considering sag, internal damping characteristics, pinion's inertia, shaft's inertia, and bearing's damping characteristics was established. Numerical analysis was carried out using an improved Galerkin method. The novel damper's performance parameters, energy dissipation capacity, and vibration control effect on cables were discussed. The comparison between experimental and numerical investigation shows that the inertial viscous damper produces apparent negative stiffness in the vibration damping of the cable, and the displacement amplification effect has a significant positive impact on the vibration damping effect. The improved Galerkin method can be adopted in the analysis of a cable-inertial viscous damper system, and the algorithm does not depend on the selection of initial values. The theoretical results are in good agreement with the experimental results, verifying the accuracy of the proposed method in this study. The inertial viscous damper has a good damping effect on cable vibration. © 2022, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：93 / 101and123
相关论文
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