|
Abstract: The
advantage of harmonic wavelet is analyzed. On the basis of research for
part decomposition in frequency domain, the expression for harmonic
wavelet packets transform on frequency section is put forward. The
realizing method of harmonic wavelet packets transform is given out. The
ability of harmonic wavelet analysis on arbitrary detail of frequency
section is realized. The vibration signal of rotor is analyzed in detail
frequency section. The real vibration of high speed rotor is analyzed by
harmonic wavelet packets transform. At the same time of obtaining detail
spectrum, the orbit of rotor’s sub-frequency signal is accurate
obtaining directly. This is difficult in general method. The satisfied
results are received. This provides the new method for signal analysis
of rotor fault.
Key
words: Harmonic
wavelet packet Rotor Sub-frequency Orbit
CLC No: TH113.1
TN911.6
山东省自然科学基金资助项目(Y2000A01). Received 20030918, received in revised form
20040410
|