Abstract
Based on the disadvantages of the original LMD algorithm in terms of smoothing method and end effect, this paper puts forward a fault diagnosis method of rotor system based on the improved LMD and singular value decomposition. The PF (Product function) component obtained after applying the improved LMD method is able to separate the aliasing modes while maintaining the natures and features of the original PF component. Thus, the system’s real information can be grasped more effectively. According to the experimental analysis, this method can be applied to fault diagnosis of rotor system effectively.
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