An approach to monitoring of gearbox based on HHT spectrum
Hilbert-Huang Transform (HHT) Spectrum is analyzed,and is compared with Wigner-Ville distribution(WVD).And it is proposed a method that is band pass filtering--signal purification and reconstruction--HHT spectrum analyses method to carry on the state recognition and fault diagnosis of the mechanical equipment.The compared signals include:the signals of harmonic,amplitude modulation and frequency modulation,and the mixed signals that are composed of these single signal,then it is pointed out:HHT Spectrum have higher frequency resolution than WVD,and it has overcome the latter influence of cross-term interference.At last,real signals of fault gcar are analyzed by this method,and it is indicated that the method can offer a new and effective method for fault diagnosis and condition monitoring.
HHT spectrum Wigner-Ville distribution fault diagnosis filtering
Zhixin Chen Haitao Sun Shikun Xie
Logistics School, Beijing Wuzi University, Beijing 101149, China School of Engineering, Jinggangshan University, Jian, 343009, China
国际会议
秦皇岛
英文
117-120
2012-12-28（万方平台首次上网日期，不代表论文的发表时间）