Research on Aeroengine Rub-Impact Fault Analysis Based on Wavelet Scalogram Statistical Feature
The characteristics of the continuous wavelet transform scalogram of the aeroengine vibration signal could show the fault symptomatic in the 2-dimensional space and identify the rub-impact fault of the aeroengine. In order to get the precise feature for fault analysis, the statistical features of the scalogram which incorporated the Tamura vision features were proposed to diagnose the aeroengine rub-impact faults quantitatively. The experiments on the aeroengine test data demonstrate these statistic characteristics of the scalogram effectively diagnose the rub-impact faults.
Y. H. Wu et al., "Research on Aeroengine Rub-Impact Fault Analysis Based on Wavelet Scalogram Statistical Feature", Applied Mechanics and Materials, Vols. 48-49, pp. 942-945, 2011