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Abstract: A new time-frequency distribution (TFD) is proposed by
designing a new kernel function , which is applied to mechanical fault
diagnosis. Through diagnosing two faults and comparing with Winger-Ville
distribution(WVD), the new distribution is found to have a high
resolution and can suppress cross terms perfectly. In practice, this new
distribution can reflect the characteristics of the mechanical faults,
which the WVD and FFT cannot, and so a good method for faults diagnosis
is put porward.
Key words: Kernel function Time-frequency distribution WVD Fault
diagnosis
CLC No: TN911.7
TH17
Received
20020416, received in revised form 20030122
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