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用渐进功率谱的概念研究非线性系统的非平稳随机振动——单自由度系统
引用本文:安应琪.用渐进功率谱的概念研究非线性系统的非平稳随机振动——单自由度系统[J].河北工业大学学报,1993(3).
作者姓名:安应琪
作者单位:河北工学院动力系
摘    要:1965年Priestley提出了渐进功率谱的概念,后来Hammond利用这个概念解决了线性系统的非平稳随机振动(瞬态响应)。本文利用此原理,应用作者提出的求解非线性随机振动的方法,讨论了单自由度非线性系统的非平稳随机振动。

关 键 词:渐进功率谱  非线性系统  非平稳过程  瞬态响应  激励  单自由度  相关函数  随机振动

A Study of Nonstationary Random Vibration of Nonlinear Systems by Notion of Evolutionary Power Spectra Single-Degree-of-Freedom Systems
An Yingqi.A Study of Nonstationary Random Vibration of Nonlinear Systems by Notion of Evolutionary Power Spectra Single-Degree-of-Freedom Systems[J].Journal of Hebei University of Technology,1993(3).
Authors:An Yingqi
Abstract:In 1965, Prietley Put forward a notion of evolutionary power spectra, since then Hammond used it to solve nonstatienary random vibration (transient response) of linear systems. In this paper, we make a study of this theorem, using the method porposed by the author, to disouss nonstationary random vibration (transient response) of singie-degree-of-freedom nonlinear systems.
Keywords:Evolutionary power spectra  Nonlinear systems  Nonstationary process  Transient response  Excitation  Single degree of freedom  Correlation function  Random vibration
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