粘滞阻尼器在集装箱起重机上的减震研究

王贡献?,王洋洋,胡勇,王东

振动与冲击 ›› 2016, Vol. 35 ›› Issue (12) : 171-176.

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PDF(2726 KB)
振动与冲击 ›› 2016, Vol. 35 ›› Issue (12) : 171-176.
论文

粘滞阻尼器在集装箱起重机上的减震研究

  • 王贡献?,王洋洋,胡勇,王东
作者信息 +

Study on Seismic Response Control for Container Crane Using Viscous Dampers

  •   Wang Gong-xian   Wang Yang-yang   Hu Yong   Wang Dong
Author information +
文章历史 +

摘要

本文基于能量耗散的原理提出了一种集装箱起重机抗震方法,该方法是在门腿与横梁之间安装粘滞阻尼器以吸收和耗散输入到结构的地震波能量,提高集装箱起重机的抗震性能。通过建立集装箱起重机减震结构的等效单自由度力学模型,推导了减震结构的等效阻尼和等效刚度,并与有限元模型计算结果对比验证了等效模型的有效性和可信度,提出了基于位移和耗能比的阻尼器阻尼系数和撑杆刚度系数优化方法,得到了不同烈度地震作用下的优化阻尼系数和刚度系数,计算了集装箱起重机减震结构在不同地震载荷作用下的位移响应特性。结果表明本文提出的集装箱起重机抗震方法能够有效的耗散地震能量,减小结构位移响应,其减震率达到了46.18%,该方法是行之有效的。

Abstract

In this paper a seismic method of container crane based on the principle of energy dissipation is proposed, that is four viscous dampers are installed between lateral beam and the leg to mitigate earthquake energy, which is used to improve the seismic performance of 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 container crane with dampers, the equivalent damping and stiffness of energy dissipation structure are deduced. Compared with the finite element model, it shows that the equivalent model is effective and credible. Optimization method based on displacement and energy dissipation ratio are proposed to optimize damping of dampers and stiffness of rods. The displacement of energy dissipation structure of container crane under different earthquake excitations are analyzed. The result shows that the seismic method of container crane proposed in this paper can effectively dissipate the seismic energy and reduce the displacement response of structure whose decreasing amplitude ratio reach 46.18%, is effective.

关键词

集装箱起重机 / 粘滞阻尼器 / 等效模型 / 抗震性能

Key words

container crane / viscous damper / equivalent model / seismic performance

引用本文

导出引用
王贡献?,王洋洋,胡勇,王东. 粘滞阻尼器在集装箱起重机上的减震研究[J]. 振动与冲击, 2016, 35(12): 171-176
Wang Gong-xian Wang Yang-yang Hu Yong Wang Dong . Study on Seismic Response Control for Container Crane Using Viscous Dampers[J]. Journal of Vibration and Shock, 2016, 35(12): 171-176

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