Gear fault diagnosis based on correlation dimension pre-processed with EMD
Ming Ting-tao · Zhendong yu chongji · 2009
Three different conditions of a gear, i.e., normal condition, a crack in root of a tooth and a broken tooth were diagnosed by calculating the correlation dimension in the fractal theory. In order to weaken effect of noise on precision of calculation, a new filtering approach based on EMD was put forward to pre-process signals sampled. Through experiments on a gear box, this method was proved to be feasible and valid.