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应用小波分析和分形几何方法对转子动静碰摩故障信号进行处理，得到比傅立叶分析更明显的特征，从而为故障诊断系统提供精度更高的摩擦故障征兆
Applying the wavelet analysis and the fractal geometry method, the signals of the rotor rub-impact fault are processed to obtain more obvious features than the Fourier analysis so as to provide a more accurate fault symptom for the fault diagnosis system