Research on Mechanical Fault Diagnosis Based on Cascaded Bistable Stochastic Resonance and Fractal Box Dimension

Yan Hao; Jing Chuan Dong; Tai Yong Wang; Jian Wan; Pan Zhang

doi:10.4028/www.scientific.net/AMM.141.434

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 141Research on Mechanical Fault Diagnosis Based on...

Research on Mechanical Fault Diagnosis Based on Cascaded Bistable Stochastic Resonance and Fractal Box Dimension

Abstract:

Combining the filtering performance of cascaded bistable stochastic resonance with measurement capability of fractal box dimension for non-linear characteristics of signals, a method of mechanical fault diagnosis based on cascaded bistable stochastic resonance and fractal box dimension was presented. The experiment results showed that this method removed high frequency noise efficiently and obtained precise fractal dimension. In order to implement mechanical fault diagnosis, the non-linear characteristics of mechanical vibration signals were measured by fractal dimension accurately.