STUDY ON HOLOSPECTRUM BASED ON CORRECTION OF RHASE DIFFERENCE

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Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (8) : 99-102.

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STUDY ON HOLOSPECTRUM BASED ON CORRECTION OF RHASE DIFFERENCE

Tang Baoping,Chen Jianbo,Zhang Guowen

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Abstract

A new method of holospectrum based on correction of phase difference is put forward against to the lower precision of traditional holospectrum in noisy interference. First it takes windowed FFT transformation of signal in time domain and then the frequency,amplitude and phase are corrected by correction of phase difference.At the last, the holospectrum is synthesized.Through the simulation and the analysis of flexible rotor’s vibration signal,The result shows that it has higher precision in practice and can diagnose the rotation machinery fault more accurately and more effectively.

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phase difference / spectrum correction / holospectrum / rotary machinery

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Tang Baoping;Chen Jianbo;Zhang Guowen. STUDY ON HOLOSPECTRUM BASED ON CORRECTION OF RHASE DIFFERENCE[J]. Journal of Vibration and Shock, 2009, 28(8): 99-102