A vibration analysis method based on hybrid techniques and its application to rotating machinery

doi:10.1016/j.measurement.2013.07.014

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	A vibration analysis method based on hybrid techniques and its application to rotating machinery
	Deng, Linfeng ; Zhao, Rongzhen 1
刊名	MEASUREMENT
	2013-11
卷号	46 期号:9 页码:3671-3682
关键词	Vibration analysis Condition monitoring Fault feature extraction Local mean decomposition Product function Rotating machinery
ISSN号	0263-2241
DOI	10.1016/j.measurement.2013.07.014
英文摘要	Vibration-based condition monitoring and fault diagnosis technique is a most effective approach to maintain the safe and reliable operation of rotating machinery. Unfortunately, the vibration signal always exhibits non-linear and non-stationary characteristics, which makes vibration signal analysis and fault feature extraction very difficult. To extract the significant fault features, a vibration analysis method based on hybrid techniques is proposed in this paper. Firstly, the raw signals are decomposed into a few product functions (PFs) using local mean decomposition (LMD), and meanwhile instantaneous frequency and instantaneous amplitude also are obtained. Subsequently, Fourier transform is performed on the derived PFs, and then, according to the spectra features, the useful PFs are selected to reconstruct the purified vibration signals. Lastly, several different fault features are fused to illustrate the operating state of the machinery. The experimental results show that the proposed method can accurately extract machine fault features, which proves that the combined application of LMD and other signal processing techniques is a successful scheme for the machine vibration analysis. (C) 2013 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[50875118][51165019] ; Cultivation Program for Excellent Doctoral Dissertation of Lanzhou University of Technology[201102]
WOS研究方向	Engineering ; Instruments & Instrumentation
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000324298700077
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34596]
专题	机电工程学院
通讯作者	Zhao, Rongzhen
作者单位	1.Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Key Lab Digital Mfg Technol & Applicat, Minist Educ, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Deng, Linfeng,Zhao, Rongzhen. A vibration analysis method based on hybrid techniques and its application to rotating machinery[J]. MEASUREMENT,2013,46(9):3671-3682.
APA	Deng, Linfeng,&Zhao, Rongzhen.(2013).A vibration analysis method based on hybrid techniques and its application to rotating machinery.MEASUREMENT,46(9),3671-3682.
MLA	Deng, Linfeng,et al."A vibration analysis method based on hybrid techniques and its application to rotating machinery".MEASUREMENT 46.9(2013):3671-3682.