基于声发射波束形成法的转静子碰摩故障定位

何田; 刘耀光; 陈亚农; 刘献栋

基于声发射波束形成法的转静子碰摩故障定位

1.
北京航空航天大学交通科学与工程学院,北京100191
2.
中国航空工业集团公司中国航空动力机械研究所,湖南株洲 412002

基金项目: 国家自然科学基金(50875010)

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出版历程
- 收稿日期: 2010-10-18
- 修回日期: 2011-03-07
- 刊出日期: 2011-10-28

Method for locating rub fault of rotor-stator based on acoustic emission beamforming

1.
School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2.
China Aviation Power Plant Research Institute, Aviation Industry Corporation of China, Zhuzhou Hunan 412002, China

摘要

摘要: 提出了一种利用声发射信号进行旋转机械转静子碰摩故障定位的方法.首先利用板波理论进行声发射信号传播特性研究,证明波束形成法在声发射信号处理中的可行性,并建立近场声发射波束形成法;之后,在旋转机械碰摩故障模拟实验台的机匣上进行断铅实验,利用近场声发射波束形成法进行定位测试,验证所提出方法的有效性;最后,将提出的方法用于转静子碰摩故障的定位,并成功地识别出碰摩故障的位置.
- 波束形成 /
- 声发射 /
- 定位 /
- 碰摩 /
- 故障诊断
Abstract: A method for locating rub fault in rotating machinery based on the beamforming of acoustic emission signals was presented.Firstly,the propagation characteristics were obtained by using plate wave theory.On the basis of these results, the feasibility of locating rotating machinery rub fault by the beamforming of acoustic emission signals was confirmed,and the acoustic emission beamforming method was presented.Then,by breaking a mechanical pencil lead on the surface of the stator,the artificial acoustic emission was implemented to verify the presented method.Finally,the present method was used to diagnose the rotor-stator rub fault on the fault experimental device,and the results were analyzed, showing that the acoustic emission beamforming method can identify rub position efficiently.
- beamforming /
- acoustic emission /
- locating /
- rub /
- fault diagnosis

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参考文献(15)

[1]	邓艾东,包永强,赵力.转子碰摩声发射源定位中的广义互相关时延估计研究[J].中国电机工程学报,2009,29(14):86-92. DENG Aidong,BAO Yongqiang,ZHAO Li.Research on time delay estimation algorithm based on generalized cross correlation in acoustic emission source location[J].Proceedings of the CSEE,2009,29(14):86-92.(in Chinese)
[2]	褚福磊,王庆禹,卢文秀.用声发射技术与小波包分解确定转子系统的碰摩位置[J].机械工程学报,2002,38(3):139-143. CHU Fulei,WANG Qingyu,LU Wenxiu.Detection of the rub location in a rotor system with AE sensors and wavelet analysis[J].Chinese Journal of Mechanical Engineering,2002,38(3):139-143.(in Chinese)
[3]	何永勇,印欣运,褚福磊.基于小波尺度谱的转子系统碰摩声发射特性[J].机械工程学报,2007,43(6):149-153. HE Yongyong,YIN Xinyun,CHU Fulei.Acoustic emission characteristics of rub-impact for rotor-bearing system based on wavelet scalogram[J].Chinese Journal of Mechanical Engineering,2007,43(6):149-153.(in Chinese)
[4]	Hall L D,Mba D.Acoustic emissions diagnosis of rotor-stator rubs using the KS statistic[J].Mechanical Systems and Signal Processing,2004,18(4):849-868.
[5]	Hall L D,Mba D.Diagnosis of continuous rotor-stator rubbing in large scale turbine units using acoustic emissions[J].Ultrasonic,2004,41(9):765-773.
[6]	DENG Aidong,GAO Wei,BAO Yongqiang,et al.Research of acoustic emission signal enhancement based on discrete fractional cosine transform //IEEE Proc of 7th WCICA.Chongqing:IEEE,2008:5852-5857.
[7]	金志浩,刘俊煊,金文,等.旋转机械碰摩故障声发射信号的特征识别研究[J].沈阳化工学院学报,2008,22(2):153-156. JIN Zhihao,LIU Junxuan,JIN Wen,et al.Study on the feature recognition of acoustic emission signals from the rubbing fault of rotor[J].Journal of Shenyang Institute of Chemical Technology,2008,22(2):153-156.(in Chinese)
[8]	Majid A,Mehrdad S B.Leak detection in water-filled plastic pipes through the application of tuned wavelet transforms to acoustic emission signals[J].Applied Acoustics,2010,71(7):634-639.
[9]	McLaskey G C,Glaser S D,Grosse C U.Beamforming array techniques for acoustic emission monitoring of large concrete structures[J].Journal of Sound and Vibration,2010,329(12):2384-2394.
[10]	Mailloux R J.Phased array antenna handbook[M].Norwood:Artech House Publishers,2005.
[11]	Miklowitz J.Elastic waves and waveguides[M].New York :North-Holland Publishing Company,1978.
[12]	Graff K F.Wave motion in elastic solids[M].Columbus:Ohio State University Press,1975.
[13]	Rose J L.Ultrasonic waves in solid media[M].London:Cambridge University Press,2004.
[14]	张虹.管道腐蚀及泄漏的声发射检测技术研究 .天津:天津大学,2007. ZHANG Hong.Study on pipeline corrosion and leak detection based on acoustic emission .Tianjin:Tianjin University,2007.(in Chinese)
[15]	Michael R G.Plate wave acoustic emission[J].Acoustical Society of America,1991,90(1):358-364.