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此文推导了动力机器基础单自由度和双自由度计算模型在白噪声激励下的动力响应，并运用于钢球磨煤机基础的动力响应计算中，得到了钢球磨煤机基础振幅的计算公式。
In this paper, the dynamic response of single and two degrees of freedom model of dynamic machine under white noise excitation is deduced and applied to the dynamic response calculation of the ball mill base. The calculation formula of the basic amplitude of the ball mill is obtained .