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本文采用了将求系统的响应的均方值,变为计算系统频率响应函数之模的平方的积分方法,求出了系统在高斯白噪声激励下响应的谱密度及其均方位.在响应的均方值取得极值的条件下,求得了系统的最佳参数(最佳频率比和最佳阻尼率).
In this paper, we use the integral method of calculating the square of the response of the system into the square of the modulus of the frequency response function of the system, and calculate the spectral density and the average of the response of the system under excitation of Gaussian white noise. The optimal parameters of the system (optimal frequency ratio and optimal damping rate) were obtained under the condition that the mean square value obtained the extreme value.