Abstract
In the development of a domestic passenger car, it is found that there is a severe abnormal noise of suspension system. In response to the problem, firstly, the frequency range of abnormal noise of the suspension system is identified through vehicle road test and subjective evaluation, secondly, the main path of abnormal noise source is acquired by transfer path analysis(TPA), finally, abnormal noise source of the key component of the main path is identified through the time difference method and the characteristic energy of wavelet analysis method. Through this method, the main abnormal noise source of suspension system can be identified quickly in a relatively short time. The result of the study can provide theoretical and practical guidance for other similar suspension abnormal noise problems.
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