摘要
本文考察组合系统在限带白噪声激励下的均方响应。通过离散化和复模态分析,求得系统在限带白噪声激励下均方响应的闭式解。本方法通用于宽带激励与窄带激励情形.
The mean square response of a combined system under band-limited white noise excitations is studied by the complex modal analysis of random vibration. A combined system is a hybrid of a continuous substructure and discrete sub- structures. First, the combined system is discretized by the Green function method into a damped MDF linear system. Then the mean square response of the system under band-limited white noise excitations in a closed form by the complex modal analysis. The method is applicable not only to wide-band excitations, but to narrow-band excitations as well.
出处
《应用力学学报》
CAS
CSCD
北大核心
1989年第3期89-93,137-138,共5页
Chinese Journal of Applied Mechanics
关键词
组合系统
限带白噪声
激励
振动
random vibration
strucural dynamics
modal analysis
