摘要
针对原LMD算法在平滑方法和端点效应的不足,提出了基于改进的LMD和SVD的转子系统故障诊断方法。用改进后的LMD方法得到的PF分量能在保持原PF分量的性质特征下将混叠模态分开,从而更有效地把握了系统的真实信息。经实验分析,该方法能有效地应用于转子系统故障诊断中。
In view of the disadvantages of the original LMD algorithm in terms of smoothing method and end effect,this paper put forward a fault diagnosis method of rotor system based on the improved LMD and SVD.The PF component obtained after applying the improved LMD method was 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.
出处
《仪表技术与传感器》
CSCD
北大核心
2014年第6期128-130,共3页
Instrument Technique and Sensor
基金
山东省自然科学基金资助项目(ZR2011FL007)
山东省科技发展计划资助项目(2011YD01045)
