非均匀调制随机激励下系统的非平稳响应分析
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摘要
基于时域复模态分析,提出一种非均匀调制随机激励下系统非平稳响应特性的解析解法,用Niigata地震激励模型作了说明.算例与仿真结果吻合良好.
Based on the time domain complex modal analysis, an analytical method for finding m.s. response of a time-invariant system under nonuniformly modulated random excitation is suggested. The method is illustrated by an example of a nonstationary response problem subjected to Niigata earthquake excitation. The numerical results obtained coincide very well with simulation results.
引文
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