Study on seismic response control for a container crane using viscous dampers

被引：0
|
作者：
Wang G.-X. [1 ]
Wang Y.-Y. [1 ]
Hu Y. [1 ]
Wang D. [1 ]
机构：
[1] School of Logistic Engineering, Wuhan University of Technology, Wuhan
来源：
Hu, Yong | 1600年 / Chinese Vibration Engineering Society卷 / 35期
关键词：
Container crane; Equivalent model; Seismic performance; Viscous damper;
D O I：
10.13465/j.cnki.jvs.2016.12.027
中图分类号：
学科分类号：
摘要：
In this paper, a seismic method for a container crane, based on the principle of energy dissipation, is proposed. Four viscous dampers are installed between the lateral beam and the leg to mitigate earthquake energy, which is used to improve the seismic performance of a container crane. The equivalent single degree of freedom model of the container crane is presented. Through the establishment of the equivalent single degree of freedom mechanical model of a container crane with dampers, the equivalent damping and the stiffness of the energy dissipation structure are deduced. Compared to the finite element model, it shows that the equivalent model is effective and credible. The optimization method, based on the displacement and energy dissipation ratio, is proposed to optimize the damping of dampers and the stiffness of rods. The displacement of the energy dissipation structure of the container crane under different earthquake excitations is analyzed. The results show that the seismic method of the container crane proposed in this paper can effectively dissipate seismic energy and reduce the displacement response of the structure, in which the decreasing amplitude ratio reaches 46.18% and is effective. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：171 / 176and201
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