说明：  VMD方法能够使一个多频带的故障信号，分解出具有单个频带的子信号，然后使用共振解调方法可实现故障信号的诊断。
(The VMD method can make a multi band fault signal decompose the subsignal with a single frequency band, and then use the resonance demodulation method to realize the diagnosis of the fault signal.)