随机激励下结构的非线性分析

Nonlinear Analysis of a Structure Loaded by a Stochastic Excitation

针对随机时间序列载荷激励下的非线性系统,提出一种基于Z变换的递归方法.对于所获得的响应时间序列的识别,建议了一种离散小波变换(DWT)的技术.

For a non-linear system excited by a stochastic load which is expressed as a time series, a recursive method based on the Z-transform was presented. To identify the obtained response time seties, a discrete wavelet transform （DWT） technique was proposed.