一种含赫兹接触的梁结构冲击特性分析方法

翟国富;陈英华;任万滨

振动与冲击 ›› 2009, Vol. 28 ›› Issue (9) : 82-85.

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振动与冲击 ›› 2009, Vol. 28 ›› Issue (9) : 82-85.
论文

一种含赫兹接触的梁结构冲击特性分析方法

  • 翟国富,陈英华,任万滨
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A Shock Characteristics Analysis Method of Beam Structure with Hertzian Contact

  • Guofu Zhai,Yinghua Chen,Wanbin Ren
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摘要

密封电磁继电器的接触系统可被等效为含有非线性赫兹接触条件的双梁结构力学模型。针对接触系统在冲击振动下容易被“抖断”和“抖闭”的特点,本文结合有限元方法、赫兹接触条件和Newmark β法进行编程仿真,得到了双梁结构接触系统在受到冲击下的动态特性,同时分析了赫兹接触条件对仿真结果的影响。最后借助电磁振动台对接触系统实物模型进行冲击试验,实验结果验证了方法的可行性与准确性。

Abstract

Contact system of beam structure containing Hertzian contact is widely applied in hermetically sealed electromagnetic relay, the dynamic characteristics of which is considered to be the main cause of failure in mechanical environment. Combined with finite element method, Hertzian contact condition and Newmark β algorithm, the program for analyzing the nonlinear beam structure is complied. The impacts of Hertzian contact condition were investigated by the comparison of transient response between MSC.Patran/Nastran and the program. In order to validate the method, the shock experiment over the practical model was conducted, and the results show good consistency with the calculation.

关键词

接触系统 / 梁结构 / 赫兹接触 / 有限元 / 冲击

Key words

Contact system / Beam / Hertzian contact / Finite element method / Shock

引用本文

导出引用
翟国富;陈英华;任万滨. 一种含赫兹接触的梁结构冲击特性分析方法[J]. 振动与冲击, 2009, 28(9): 82-85
Guofu Zhai;Yinghua Chen;Wanbin Ren. A Shock Characteristics Analysis Method of Beam Structure with Hertzian Contact[J]. Journal of Vibration and Shock, 2009, 28(9): 82-85
中图分类号: TM581    O32   

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