- Microstructure and Mechanical Properties of Steels
- Hydrogen embrittlement and corrosion behaviors in metals
- Metal Alloys Wear and Properties
- Machine Fault Diagnosis Techniques
- Welding Techniques and Residual Stresses
- Metallurgy and Material Forming
- Fault Detection and Control Systems
- Gear and Bearing Dynamics Analysis
- Magnetic Properties and Applications
- Material Properties and Failure Mechanisms
North University of China
2008-2021
The weak compound fault feature is difficult to extract from a gearbox because the signal components are complex and inter-modulated. An approach (that abbreviated as MRPE-MOMEDA) for extracting features of transmission based on multipoint optimal minimum entropy deconvolution adjustment (MOMEDA) permutation was proposed solve this problem in present paper. complexity periodic impact low relatively small. Moreover, amplitude large. Based these advantages, reciprocal (MRPE) track source...
Recently, cyclostationary blind deconvolution (CYCBD) is often used in gearbox fault feature extraction, and it more effective recovering single periodic pulse. However, the engineering application of CYCBD, filter length (L) cycle frequency (α)need to be verified set through a large number experiments, efficiency very low; Moreover, effect not good when extract composite features under background strong noise. In order overcome above limitations, empirical mode decomposition (EEMD)...