High-order subharmonic parametric resonance in comb-drive microbeam arrays

摘要：

This paper studies parametric resonance of comb-drive microbeam arrays under periodically varying coupling forces. Different from most of previous related works in which the coupling attractive forces between adjacent oscillators are linearized, our work focuses on new physical phenomena caused by the nonlinear beam-beam coupling. The present analysis shows that nonlinear coupling considered in the present model does lead to the appearance of high-order subharmonic parametric resonance when the external excitation frequency is a multiple or nearly a multiple (≥ 3) of one of the natural frequencies of the oscillator system. This remarkable new phenomenon does not appear in the linearly coupled micromechanical oscillators studied previously in the literature, and makes the range of exciting resonance frequencies expanded to infinity.

作者: J. Zhu C.O. Ru A. Mioduchowski

作者单位: Department of Mechanical Engineering, University of Alberta, Edmonton, T6G 2G8, Canada

会议类型: 国际会议

会议名称: The 5th International Conference on Nonlinear Mechanics(第五届国际非线性力学会议)

会议地点: 上海

会议语种:英文

页码: 1478-1482

在线出版日期: 2007-06-11（万方平台首次上网日期，不代表论文的发表时间）