At first, in the paper vibration signals have been collected and dealt based on time synchronous averaging (TSA) in order to prevent gear fault. Then fast Fourier transform method has been used in order to make signals averaged into two parts, so normal signal and fault signal of gear has been obtained. After calculating valid residual value, quantitative presentation of fault variety can be gotten. By comparing, the results show that there is no difference in time domain waveform, while vibration amplitude is smaller in residual error diagram than in time domain waveform. The fault signal is in the place of obvious peak value where the prominent position of peak value is the place of the most serious fault.
Key words
gear fault diagnosis /
vibration signal /
residual error method /
time synchronous averaging (TSA) /
MATLAB
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Footnotes
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