利用频率响应函数求设备对基座的激励

On determination of the exciting force of the equipment from the frequency-response function

提出并用模拟实验验证通过测量基座的响应和系统的传递函数矩阵来确定设备对基座的激励的方法 ,实验结果表明 ,该方法操作简单 ,具有一定的准确性 ;分析了对误差影响较大的因素。

A way of determining the excitation of the machine on the base by measuring its response and the transfer function of the system was presented and confirmed by the experiments. The results of the experiments showed that the method is useful and convenient. The cause of the error was also discussed.