参数振动的调制反馈分析

Modulating feedback analysis for the parametric vibration

本文引入调制反馈分析法研究强迫参数振动响应,从调制环节的频率裂解出发,得到了响应的频率结构,建立了同步激励,异步激励,多频激励下的不稳定响应的频率判据条件,并对稳定和不稳定状态下的响应进行了仿真和实验验证。

In this paper, the modulating feedback analysis is introduced to study the responese of the force parametric vibration. Base on the frequency fission from a modulating unit, the frequency construction of response is known and the frequency criterion is estiblited for stability and instability under syn-chrous, nonsynchrous and multifrequency excitation, moreover, these are certified by simulation and a dynamic test.