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本文从理论和试验技术两方面初步分析了用平稳随机激振确定结构固有模态的方法.指出利用带宽B=100Hz窄带随机扫描与激振器激振结构模态是一种简便可行的方法.
In this paper, the method of determining the natural modes of structures by stationary stochastic excitation is analyzed preliminarily both theoretically and experimentally, and it is pointed out that it is a simple and feasible method to use the narrow-band random sweep of bandwidth B = 100Hz and the excited mode of vibration exciter.