Wavelet Precise Integration Method for Purification to Locus of Journal Center
Cao Yong-nin · Modular Machine Tool & Automatic Manufacturing Technique · 2015
Locus of journal center is often employed to analyze the failure of rotor. In fact,there are much more noises exist in the original signal of the locus of journal center,which is against of the precise analysis to the failure to some extent. The partial differential equation method is a newkind of purification technique for the locus of journal center proposed in recent years. Based on this newmethod,the wavelet precise integration algorithm is proposed in this paper. As a matter of fact,the wavelet precise integration method( WPIM) is an efficient algorithm to solve the partial differential equation for the purification to the locus of journal center. The numerical experiments showthat the proposed method can eliminate the noises in the original signal effectively,and it won't change the essential feature of the original signal,this is helpful to improve the correctness of the analysis to the locus of journal center.