国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In order to diagnose the gear fault accurately, a mode based on variational mode decomposition (VMD)and minimum entropy deconvolution (MED) was proposed. Firstly, the number of intrinsic mode functions (IMFs)was set based on the kurtosis of the IMF included mesh frequency maxima principle. Secondly, the vibration signal of gear was decomposed into some IMFs by VMD, then the IMF included mesh frequency was selected as the sensitive component. Thirdly, the sensitive component was de-noised by MED. Finally, the fault was diagnosed by the envelope aptitude spectrum. The analysis of broken tooth of gear fault data shows that the method can realize the fault diagnosis effectively.