Wind Turbine Planetary Gearbox Fault Analysis Based on Bispectrum

Abstract:

Through researching the fault vibration signal characteristics of planetary gearbox, various forms of quadratic phase coupling phenomenon were found in the signals. Bispectrum has properties such as detecting the quadratic coupling phenomena and restraining gaussian noise signal, and it can be well used in the planetary gearbox fault diagnosis. Meanwhile, the sun gear distributed fault (gear wear) and partial fault (root crack, partial broken teeth) are simulated in the wind turbine test bench built in the laboratory. By analyzing the structure characteristics of its frequency through bispectrum, the fault of the gear is effectively diagnosed.

• Periodical: Advanced Materials Research (Volumes 1070-1072)
• Pages: 1861-1868
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1070-1072.1861
• Online since: December 2014
• Authors: Yong Xin Feng, Wei Peng Zhang*, Tao Yang, Xiao Wen Deng, Shi Liu
• Keywords: Bispectrum, Fault Feature Extraction, Planetary Gearbox, Quadratic Phase Coupling, Sun Gear, Wind Turbine

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