Rolling bearing collaborative fault diagnosis technology for casing vibration signal
-
摘要: 针对基于机匣测点信号的航空发动机滚动轴承故障诊断问题,提出了一种滚动轴承故障的协同诊断技术。通过最小熵解卷积消除信号传递路径的影响以增强信号中的冲击性成分;通过小波变换提取共振频带;通过自相关分析抑制频带信号中的非周期性成分并进一步提升信噪比。依托带机匣的转子试验器分别对人工故障轴承和真实故障轴承进行了两组试验,试验结果表明:相比于其他典型方法,采用所提协同诊断法得到的包络谱中故障特征频率对应的谱峰更加清晰、明显。Abstract: A cooperative diagnosis technique for rolling bearing faults was proposed for aero-engine rolling bearing fault diagnosis based on casing measuring point signal. Firstly, the minimum entropy deconvolution was used to eliminate the influence of the signal transmission path and enhance the impulsive component in the signal.Then,the resonance band was extracted by applying wavelet transform. Finally,the non-periodic signal components in the resonance band were suppressed by using autocorrelation analysis while the signal-to-noise ratio was further improved. Two bearing tests were carried out respectively on the artificial fault bearing and the real fault bearing on the rotor tester with casing. Test results showed that compared with other typical methods, the spectrum peaks corresponding to the fault characteristic frequencies in the envelope spectrum obtained by the proposed cooperative diagnosis method were more clear and obvious.
-
[1] 梅宏斌.滚动轴承振动监测与诊断[M].机械工业出版社,1995. [2] RANDALL R B,ANTONI J.Rolling element bearing diagnostics:a tutorial[J].Mechanical Systems and Signal Processing,2011,25(2):485-520. [3] 尉询楷,冯悦,杨立,等.航空发动机中介主轴承故障预测研究[R].北京:航空安全与装备维修技术学术研讨会,2014. [4] CHEN G,HAO T F,WANG H F,et al.Sensitivity analysis and experimental research on ball bearing early fault diagnosis based on testing signal from casing[J].Journal of Dynamic Systems,Measurement and Control,2014,136(6):061009-061019. [5] 陈果,郝腾飞,程小勇,等.基于机匣测点信号的航空发动机滚动轴承故障诊断灵敏性分析[J].航空动力学报,2014,29(12):2874-2884.CHEN Guo,HAO Tengfei,CHENG Xiaoyong,et al.Sensitivity analysis of fault diagnosis of aero-engine rolling bearing based on vibration signal measured on casing[J].Journal of Aerospae Power,2014,29(12):2874-2884.(in Chinese) [6] WIGGINS R A.Minimum entropy deconvolution[J].Geophysical Prospecting for Petrole,1978,16(1/2):21-35. [7] ENDO H,RANDALL R B.Enhancement of autoregressive model based gear tooth fault detection technique by the use of minimum entropy deconvolution filter[J].Mechanical Systems and Signal Processing,2007,21(2):906-919. [8] 江瑞龙.基于最小熵解卷积的滚动轴承故障诊断研究[D].上海:上海交通大学,2013.JIANG Ruilong.Research on minimum entropy deconvolution for rolling element bearing fault diagnosis[D].Shanghai:Shanghai Jiao Tong University,2013.(in Chinese) [9] 王宏超,陈进,董广明.基于最小熵解卷积与稀疏分解的滚动轴承微弱故障特征提取[J].机械工程学报,2013,49(1):88-94.WANG Hongchao,CHEN Jin,DONG Guangming.Feature extraction of weak faults of rolling bearings based on minimum entropy deconvolution and sparse decomposition[J].Journal of Mechanical Engineering,2013,49(1):88-94.(in Chinese) [10] WANG H C,CHEN J,DONG G M.Fault diagnosis of rolling bearings early weak fault based on minimum entropy de-convolution and fast Kurtogram algorithm[J].Proceedings of the Institution of Mechanical Engineers:Part C:Journal of Mechanical Engineering Science,2015,229(16):2890-2907. [11] 张龙,胡俊锋,熊国良.基于MED和ICA的滚动轴承循环冲击故障特征增强[J].计算机集成制造系统,2017,23(2):333-339.ZHANG Long,HU Junfeng,XIONG Guoliang.Cyclic impact feature enhancement for rolling bearing fault detection based on MED and ICA[J].Computer Integrated Manufacturing Systems,2017,23(2):333-339.(in Chinese) [12] 何正嘉,李富才,杜远,等.小波技术在机械监测诊断领域的应用现状与进展[J].西安交通大学学报,2001,35(5):540-545.HE Zhengjia,LI Fucai,DU Yuan,et al.Development and status quo of applications on wavelet technology for mechanical surveillance and diagnosis[J].Journal of Xian Jiaotong University,2001,35(5):540-545.(in Chinese) [13] PENG Z K,CHU F L.Application of the wavelet transform in machine condition monitoring and fault diagnostics:a review with bibliography[J].Mechanical Systems and Signal Processing,2004,18(2):199-221. [14] LI C J,MA J.Wavelet decomposition of vibrations for detection of bearing-localized defects[J].Ndt & E International,1997,30(3):143-149. [15] 陈果.滚动轴承早期故障的特征提取与智能诊断[J].航空学报,2009,30(2):362-367.CHEN Guo.Feature extraction and intelligent diagnosis for ball bearing early faults[J].Acta Aeronautica et Astronautica Sinica,2009,30(2):362-367.(in Chinese) [16] 胥永刚,孟志鹏,陆明.基于双树复小波包变换和SVM的滚动轴承故障诊断方法[J].航空动力学报,2014,29(1):67-73.XU Yonggang,MENG Zhipeng,LU Ming.Fault diagnosis method of rolling bearing based on dual-tree complex wavelet packet transform and SVM[J].Journal of Aerospace Power,2014,29(1):67-73.(in Chinese) [17] 郑红,周雷,杨浩.基于小波包分析与多核学习的滚动轴承故障诊断[J].航空动力学报,2015,30(12):3035-3042.ZHENG Hong,ZHOU Lei,YANG Hao.Rolling bearing fault diagnosis based on wavelet packet analysis and multi-core learning[J].Journal of Aerospace Power,2015,30(12):3035-3042.(in Chinese) [18] 孟涛,廖明夫.利用时延相关解调法诊断滚动轴承的故障[J].航空学报,2004,25(1):41-44.MENG Tao,LIAO Mingfu.Detection and diagnosis of the rolling element bearing fault by the delayed correlation-envelope technique[J].Acta Aeronautica et Astronautica Sinica,2004,25(1):41-44.(in Chinese) [19] 程军圣,于德介,邓乾旺,等.时间-小波能量谱在滚动轴承故障诊断中的应用[J].振动与冲击,2004,23(2):33-36.CHENG Jusheng,YU Dejie,DENG Qianwang,et al.Application of time-wavelet energy spectrum in fault diagnosis of rolling bearings[J].Journal of Vibration and Shock,2004,23(2):33-36.(in Chinese) [20] SU W,WANG F,ZHU H,et al.Rolling element bearing faults diagnosis based on optimal Morlet wavelet filter and autocorrelation enhancement[J].Mechanical Systems and Signal Processing,2010,24(5):1458-1472. [21] 明安波,褚福磊,张炜.滚动轴承故障特征提取的频谱自相关方法[J].机械工程学报,2012,48(19):65-71.MING Anbo,CHU Fulei,ZHANG Wei.Feature extracting method in the rolling element bearing fault diagnosis:spectrum auto-correlation[J].Journal of Mechanical Engineering,2012,48(19):65-71.(in Chinese) [22] LEE J Y,NANDI A K.Blind deconvolution of impacting signals using higher-order statistics[J].Mechanical Systems and Signal Processing,1998,12(2):357-371. [23] MALLAT S G.A theory for multi-resolution signal decomposition:the wavelet representation[J].IEEE Computer Society,1989,11(7):674-693.
点击查看大图
计量
- 文章访问数: 793
- HTML浏览量: 5
- PDF量: 666
- 被引次数: 0