Journal of Mechanical Science and Technology

, Volume 29, Issue 8, pp 3121–3129 | Cite as

Fault diagnosis of rolling bearing based on second generation wavelet denoising and morphological filter

  • Lingjie Meng
  • Jiawei XiangEmail author
  • Yongteng Zhong
  • Wenlei Song


Defective rolling bearing response is often characterized by the presence of periodic impulses. However, the in-situ sampled vibration signal is ordinarily mixed with ambient noises and easy to be interfered even submerged. The hybrid approach combining the second generation wavelet denoising with morphological filter is presented. The raw signal is purified using the second generation wavelet. The difference between the closing and opening operator is employed as the morphology filter to extract the periodicity impulsive features from the purified signal and the defect information is easily to be extracted from the corresponding frequency spectrum. The proposed approach is evaluated by simulations and vibration signals from defective bearings with inner race fault, outer race fault, rolling element fault and compound faults, respectively. Results show that the ambient noises can be fully restrained and the defect information of the above defective bearings is well extracted, which demonstrates that the approach is feasible and effective for the fault detection of rolling bearing.


Second generation wavelet transform Denoising Morphological filter Rolling bearing Fault diagnosis 


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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Lingjie Meng
    • 1
    • 2
  • Jiawei Xiang
    • 1
    Email author
  • Yongteng Zhong
    • 1
  • Wenlei Song
    • 1
  1. 1.College of Mechanical and Electrical EngineeringWenzhou UniversityWenzhouChina
  2. 2.School of Mechanical and Electrical EngineeringGuilin University of Electronic TechnologyGuilinChina

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