The effects of nonlinearity on the output frequency response of a passive engine mount
The effects of nonlinearity on the output frequency response of a passive engine mount
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DOI：
10.1016/j.jsv.2008.04.016
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发表时间：
2008-11
影响因子：
4.7
通讯作者：
Zhike Peng;Z. Lang
中科院分区：
文献类型：
--
作者：
Zhike Peng;Z. Lang
本文简要介绍了作者最近从非线性系统的Volterra级数理论导出的输出频率响应函数的新概念。提出了一种确定基于OFRF的非线性系统输出频率响应表示中单项式的有效算法。然后将结果用于分析被动发动机悬置的输出频率响应。通过理论分析和仿真研究，得出了系统非线性对悬置输出频响特性影响的重要结论。这些结论对实际工程中发动机悬置等隔振器的分析和设计具有重要意义。
In this paper, the new concept of output frequency-response function (OFRF) that was derived recently by the authors from the Volterra-series theory of nonlinear systems is briefly introduced. An effective algorithm is proposed to determine the monomials in the OFRF-based representation of the output frequency response of nonlinear systems. The results are then used to analyze the output frequency response of a passive engine mount. Important conclusions regarding the effects of system nonlinearity on the output frequency-response behaviors of the engine mount are reached via theoretical analysis and verified by simulation studies. These conclusions are of significant importance for the analysis and design of vibration isolators such as engine mounts in practice.