Study on the Application of the HHT Instantaneous Phase
The only way for using the instantaneous phase in Hilbert transform formerly is to obtain the instantaneous frequency.Two applications based on the Hilbert-Huang Transform(HHT)instantaneous phase analysis are proposed.One is to estimate the tortional vibrations information from the radial shaft vibration signals,and the other is to make the diagnosis by means of the normal fast Fourier transform(FFT).The simulation cases are given also for showing the accuracy and efficiency of the proposed methods.
instantaneous phase HHT tortional vibration radial vibration FFT Fault Diagnosis
Yanyong Li
Electric Power Research Institute,Yunnan Power Grid Corporation,Kunming,P.R.China
国内会议
北京
英文
1764-1767
2011-10-20(万方平台首次上网日期,不代表论文的发表时间)