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Time-frequency features of two types of coupled rub-impact faults in rotor systems
Ma H(马辉); Yu, T; Han QK(韩清凯); Zhang YM(张义民); Wen BC(闻邦椿); Chen XL(陈雪莲)
Department工业信息学研究室
Source PublicationJOURNAL OF SOUND AND VIBRATION
ISSN0022-460X
2009
Volume321Issue:3-5Pages:1109-1128
Indexed BySCI ; EI
EI Accession number20090911928912
WOS IDWOS:000264381300036
Contribution Rank4
AbstractTwo types of rub-impact faults in rotor systems are studied in this paper. First is crack coupled with rub-impact, and second is oil-film instability coupled with bearing rub-impact. By combining spectrum cascade, reassigned wavelet scalogram, rotor trajectory, and frequency spectrum, some novel fault features have been discovered from the vibration signals measured in both the speeding up and slowing down process. The results show that for crack coupled with rub-impact fault, the system motion is from period-three motion, to period-two motion, then to period-four motion in the slight rub-impact stage. However, in the stage of the serious rub-impact, chaotic motion occurs. For oil-film instability coupled with rub-impact fault, rotational frequency, oil-film instability frequency, and the combined frequencies of them can be observed when slight bearing rub-impact occurs. When bearing rub-impact is increasingly serious. the increase of low frequency amplitude can be viewed as the most distinguishable characteristic. (C) 2008 Elsevier Ltd. All rights reserved.
Language英语
WOS HeadingsScience & Technology ; Technology
WOS SubjectAcoustics ; Engineering, Mechanical ; Mechanics
WOS KeywordWAVELET TRANSFORM ; BEARING SYSTEM ; CRACK ; SCALOGRAM ; DIAGNOSIS ; MOTION
WOS Research AreaAcoustics ; Engineering ; Mechanics
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/15721
Collection工业信息学研究室
Affiliation1.School of Mechanical and Automation, Northeastern University, Shenyang, Liaoning 110004, China
2.Center for Noise and Vibration Control (NOVIC), Department of Mechanical Engineering, KAIST, Science Town, Daejeon 305-701, Korea, Republic of
3.School of Electromechanical Automobile Engineering, Yantai University, Yantai, Shandong 264005, China
4.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
Recommended Citation
GB/T 7714
Ma H,Yu, T,Han QK,et al. Time-frequency features of two types of coupled rub-impact faults in rotor systems[J]. JOURNAL OF SOUND AND VIBRATION,2009,321(3-5):1109-1128.
APA Ma H,Yu, T,Han QK,Zhang YM,Wen BC,&Chen XL.(2009).Time-frequency features of two types of coupled rub-impact faults in rotor systems.JOURNAL OF SOUND AND VIBRATION,321(3-5),1109-1128.
MLA Ma H,et al."Time-frequency features of two types of coupled rub-impact faults in rotor systems".JOURNAL OF SOUND AND VIBRATION 321.3-5(2009):1109-1128.
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