Mutifractal Analysis of Diesel Cylinder Liner Fault

Vibration signal of diesel engine fault is nonstationary and nonlinear, and it is very difficult to analyse using traditional frequency spectrum method. In this paper, we try to analyse the signal with multifractal analysis which is from the viewing signal irregular behavior and self-similarity instead of frequency. Application indicates that the method described in the paper is a good way in analysis and classification of diesel engine faults.