EMD and Zoom Envelope Spectrum for Rolling Bearing Fault Diagnosis

摘要：

　　Intrinsic mode function component (IMF) has been effectively decomposed by using empirical mode (EMD) decomposition method,and the high-frequency resonance frequency band the rolling bearing components is extracted.Then the high frequency component of the IMF is shifted to the lower frequency by using real frequency modulation principle,and a new envelope refining spectrum is obtained through the Hilbert transform after low frequency sampling.The method not only simplifies the design of band-pass filtering process but improves refinement computational efficiency of the envelope spectrum.The method verifies the correctness of the theory and practical method through the analysis of the fault diagnosis of rolling bearing inner ring experiment.

关键词： EMD Zoom envelope spectrum Bearing Fault diagnosis

作者: Xiang Jingzhong Zhu Hui Gao Mengjin Chen Fangiian Shi Xianjiang Zhao Yanling

作者单位: Mechanical & Power Engineering College, Harbin University of Science and Technology,Harbin, China 15 Donghua University, Shanghai, China, 200051

会议类型: 国际会议

会议名称: 2013 3rd International Symposium on Chemical Engineering and Material Properties(2013第三届化学工程和材料性能国际研讨会)(ISCEMP 2013)

会议地点: 三亚

会议语种:英文

页码: 2187-2190

在线出版日期: 2013-06-22（万方平台首次上网日期，不代表论文的发表时间）