Title :
Examination of gearbox cracks using time-frequency distributions
Author :
Oehlmann, H. ; Brie, D. ; Begotto, V. ; Tomczak, M.
Author_Institution :
CNRS, Vandoeuvre, France
Abstract :
Nonstationary gearbox vibration signals are analysed using a time-frequency (TF) representation which is chosen with respect to its interpretability. With its help, a crack transient is examined in detail and decomposed into three physical parts. Following this analysis, a time-domain signal is synthesized. Its good phase fitting proves on one hand, the validity of the analysis and on the other hand, the good accuracy of the TF representation chosen
Keywords :
acoustic signal processing; cracks; machine theory; signal representation; signal synthesis; statistical analysis; synchronous motors; time-frequency analysis; transient analysis; vibrations; crack transient; gearbox cracks; nonstationary gearbox vibration signals; phase fitting; synchronous motors; time-domain signal synthesis; time-frequency distributions; time-frequency representation; Kernel; Signal analysis; Signal processing; Signal synthesis; Teeth; Time domain analysis; Time frequency analysis; Transient analysis; Vibrations; Wheels;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.480326
