The Research on the Method of Vibration Fault Diagnosis Based on Wavelet Energy Entropy and Rough Set
Shengyang Lu · Turbine Technology · 2012
In this paper,Analyze the vibration fault signal with wavelet method to get a number of wavelet coefficients,and then deducting redundant characteristics which get from the wavelet energy based on rough set,To diagnose the fault samples by the generated diagnostic rules form the reduction characteristics,On the basis of the fault have been identified,Measure the fault degree with wavelet energy spectrum entropy.The experiment results show that the RSES software based on rough set theory have a higher diagnostic accuracy,To a certain extent the fault degree can be measured through energy spectral entropy parameters.