• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2000, Vol. 36 ›› Issue (5): 93-96.

• Article • Previous Articles     Next Articles

RESEARCH OF DENOISING RUNNING TRENDS OF ROTATING MACHINERY WITH WAVELET PACKET THRESHOLDING

Zhang Ziyu;Wu Zhenyang;Chen Jin;Shi Xizhi   

  1. Southeast University Shanghai Jiaotong University
  • Published:2000-05-15

Abstract: The extracting method of the long term trend of rotating machinery is investigated. A signal trend extracting method, which is based on wavelet packet thresholding technique, is proposed. The short-term random fluctuate can be removed with this method, and the mean trend can be obtained. The running trend forecasting results are excellent when being used to predict long-term operating condition of large rotating machinery.

Key words: Forecast, Rotating machinery, Wavelet packet thresholding

CLC Number: