文章基本信息

标题：Analysis and suppression of a self-excitation vibration via internal stiffness and damping nonlinearity:
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作者：Ze-Qi Lu ; Jue-Min Li ; Hu Ding 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2017
卷号：9
期号：12
页码：1-7
DOI：10.1177/1687814017744024
语种：English
出版社：Sage Publications Ltd.
摘要：This work concerns the usage of the internal stiffness and damping nonlinearity for vibration suppression in a van der Pol–type mechanical self-excitation system. Changing the vertical or horizontal damping could limit the growth of the flow-induced instability. Applying harmonic balance method, the energy transfer for the self-excitation vibration is inves?tigated through the limit circle. The steady amplitude of the limit circle is a key parameter that could be used to evaluate the effectiveness of the self-excitation oscillation suppressing. Increasing horizontal damping could reduce the rate of roll on for the steady amplitude curve of the limit circle, but the critical flow velocity for the limit circle occurring is mini?mally affected. Increasing vertical damping could increase the critical flow velocity, but the rate of the roll on is virtually unaffected when the parameters are properly chosen.
关键词：Nonlinear vibration; vibration suppression; self-excitation oscillation; stiffness and damping nonlinearities; limit circle