Fault Diagnosis of Bearing Pad Based on HHT

Abstract:

In this paper, the abnormal sound of bearing pad engine signal was studied. As the car engine signal is nonlinear and non-stationary, Hilbert-Huang transform method diagnosis the normal and bearing pad abnormal sound engine signal was used. Hilbert spectrum and time-frequency distribution 3-d map was got. Through these we knew normal engine signal frequency was 210 Hz, the abnormal sound of bearing pad engine signal frequency mainly concentrated in the 500 Hz, 1500 Hz and 2700 Hz. The results showed that the cause of abnormal sound was bearing pad wear. Sound signal was used in this experiment, it was easy to get, and the HHT analysis can separate cause abnormal sound of the high frequency component from the abnormal sound signal. From analysis of it, the abnormal sound reasons can find easily. It provides a new simple and effective method to the abnormal sound of bearing pad fault diagnosis.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 3163-3167
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.3163
• Online since: August 2013
• Authors: Feng Lei Ma, Xiao Long Zhou, Yong Tao Zheng
• Keywords: Bearing Pad, Fault Diagnosis, Hilbert-Huang Transform (HHT)

References

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