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针对工程实际情况 ,从实测响应间的互相关函数入手 ,推导出适用于工作状态下的频域多参考点模态识别法 ,然后采用一飞机模型对该方法进行了试验验证。
According to the actual situation of the project, starting from the cross-correlation function between the measured responses, the modal identification method for multi-reference points in frequency domain is deduced, and then an airplane model is used to verify the method.