质量摆数值模拟及其在抗震中的有限元分析

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英文篇名：Numerical Simulation of Mass Pendulum and Finite Element Analysis in Anti-seismic 中文刊名：东北林业大学学报 英文刊名：Journal of Northeast Forestry University 作者：张云峰 ; 姚芳 ; 张文福 英文作者：Zhang Yunfeng ; Yao Fang ; Zhang Wenfu(Daqing Petroleum Institute ; Daqing 163318 ; P. R. China) 中文关键词：悬挂质量摆 ; 振动控制 ; ANSYS ; 应用 英文关键词：Suspended mass pendulum ; Vibration control ; ANSYS ; Application 出版日期：2005-05-25 机构：大庆石油学院,大庆石油学院,大庆石油学院 大庆,163318 ,大庆,163318 ,大庆,163318 年：2005 期：03 出版单位：东北林业大学学报

摘要

基于ANSYS有限元软件讨论了高层建筑结构利用悬挂质量摆减震的原理及减震性能。首先,分析得到了体系的振动方程和不同质量的悬挂质量摆在动力荷载作用下对结构的影响。通过数值分析,提出了更有效的方法。在利用ANSYS有限元软件研究过程中,用COMBINE和MASS21两种单元来模拟悬挂质量摆,线性和非线性振动响应被得到。其次,提出了一种简单的设计方法和一些建议。最后,给出一个利用悬挂质量摆减震的范例。结果表明这种系统对减少动力响应是有效的。
An approach using the suspended mass pendulum to reduce the structural response to earthquake ground motion was discussed based on the ANSYS software. Firstly, an equation of motion for system was derived and the effects of different mass of pendulum on the structure were investigated. The more effective scheme was figured out by a number of numerical analysis. Two kinds of element type, e.g. element COMBINE and MASS21 in ANSYS, were used to simulate the suspended mass pendulum. Nonlinear response as well as linear response of mass pendulum was obtained in ANSYS simulation. The differences between nonlinear vibration and linear vibration of mass pendulum were also presented. Secondly, a simplified design method and some recommendations were put forward. Finally, an illustrated application example was given. Results indicate that this system is effective and applicable to reduce the dynamic response.

引文

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