The paper 'Processing for Improved Spectral Analysis' and' Wind turbine high-speed shaft bearings health prognosis through a spectral Kurtosis-derived indices and SVR 'clearly pointed out that the axial velocity variation waveform within 6s time fluctuated around 30Hz with time variation. I find it strange that in the data given, the 'tach' data in the 50 days are all constant acceleration data, I think this tach data may not be the shaft speed, looking forward to your reply on this issue, thank you!!
The paper 'Processing for Improved Spectral Analysis' and' Wind turbine high-speed shaft bearings health prognosis through a spectral Kurtosis-derived indices and SVR 'clearly pointed out that the axial velocity variation waveform within 6s time fluctuated around 30Hz with time variation. I find it strange that in the data given, the 'tach' data in the 50 days are all constant acceleration data, I think this tach data may not be the shaft speed, looking forward to your reply on this issue, thank you!!