EMD boundary processing method and its application to friction fault diagnosis of rotor system

被引：0
|
作者：
Qi, Keyu [1 ,2 ]
Shi, Kunlin [1 ]
Huo, Pengfei [1 ]
He, Zhengjia [2 ]
机构：
[1] Xi'an Institute of Electromechanical Information Technology, Xi'an, 710065, China
[2] Department of Mechanical Engineering, Xi'an Jiaotong University, Xi'an,710049, China
来源：
Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2010年 / 30卷 / 05期
关键词：
Boundary processing - Cosine window - EMD method - Empirical Mode Decomposition - ITS applications - Rotor systems;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In order to solve the boundary distortion problem in the empirical mode decomposition (EMD) method, a novel boundary processing method using a cosine window is proposed. The cosine window is firstly defined that its values equal to 1 in middle of the window and reduce according to the laws of cosine/sine functions in both ends. Secondly, the analyzed signal is preprocessed by multiplying with the defined window, so that the amplitudes of the signal remain in middle and reduce in both ends. Lastly, EMD method is used to analyze the preprocessed signal. With the proposed method, the boundary distortion can be controlled in ends of the signal and the middle component can be correctly decomposed. The results show that the proposed method can effectively decrease the boundary distortion of EMD and is useful in friction fault diagnosis of rotor system.
引用
收藏
页码：492 / 495
相关论文
共 50 条
  • [1] Cosine window-based boundary processing method for EMD and its application in rubbing fault diagnosis
    Qi, Keyu
    He, Zhengjia
    Zi, Yanyang
    [J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2007, 21 (07) : 2750 - 2760
  • [2] Application of EMD method to friction signal processing
    Guo, Kejian
    Zhang, Xingang
    Li, Hongguang
    Meng, Guang
    [J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2008, 22 (01) : 248 - 259
  • [3] The EMD method and its use in ship engine fault diagnosis
    Chu, J
    Gai, Q
    Zhang, HY
    [J]. ISTM/2003: 5TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-6, CONFERENCE PROCEEDINGS, 2003, : 2039 - 2042
  • [4] Normalized complex Teager energy operator demodulation method and its application to fault diagnosis in a rubbing rotor system
    Zeng, Ming
    Yang, Yu
    Zheng, Jinde
    Cheng, Junsheng
    [J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2015, 50-51 : 380 - 399
  • [5] The Application Of Fault Diagnosis Based on EMD and Real Modulation Zoom Method
    Xiang Jingzhong
    Ge Fupeng
    Sun Han
    Shi Xianjiang
    [J]. MECHANICAL ENGINEERING, MATERIALS SCIENCE AND CIVIL ENGINEERING, 2013, 274 : 37 - 40
  • [6] Application of EMD method and Hilbert spectrum to the fault diagnosis of roller bearings
    Yu, DJ
    Cheng, JS
    Yang, Y
    [J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2005, 19 (02) : 259 - 270
  • [7] A Revised Hilbert-Huang Transform and Its Application to Fault Diagnosis in a Rotor System
    Wang, Hongjun
    Ji, Yongjian
    [J]. SENSORS, 2018, 18 (12)
  • [8] An improved method of EMD and its applications in rotating machinery fault diagnosis
    Shi, Pei-Ming
    Ding, Xue-Juan
    Li, Geng
    Han, Dong-Ying
    [J]. Zhendong yu Chongji/Journal of Vibration and Shock, 2013, 32 (04): : 185 - 190
  • [9] Application of the EEMD method to rotor fault diagnosis of rotating machinery
    Lei, Yaguo
    He, Zhengjia
    Zi, Yanyang
    [J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2009, 23 (04) : 1327 - 1338
  • [10] Sifting process of EMD and its application in rolling element bearing fault diagnosis
    Hongbo Dong
    Keyu Qi
    Xuefeng Chen
    Yanyang Zi
    Zhengjia He
    Bing Li
    [J]. Journal of Mechanical Science and Technology, 2009, 23 : 2000 - 2007
12345