Compound faults of gear and bearing in a gearbox tend to couple features both of
distributed and localized defects. The vibration signal shows overlapped modulation …

Vibration signals of gearboxes working under time-varying conditions are non-stationary,
which causes difficulties to the fault diagnosis. Based on the techniques of signal sparse …

The vibration monitoring of gearboxes is an effective means of ensuring the long-term safe
operation of rotating machinery. A gearbox may have more than one fault in actual …

Localized faults in gearboxes tend to result in periodic shocks and thus arouse periodic
responses in vibration signals. Feature extraction has always been a key problem for …

Compound faults diagnosis is a challenge for rotating machinery fault diagnosis. The
vibration signals measured from gearboxes are usually complex, non-stationary, and …

Sparse decomposition has been widely used in gear local fault diagnosis due to its
outstanding performance in feature extraction. The extraction results depend heavily on the …

The vibration signal of faulty gearbox commonly involves complex coupling modulation
components. The method of sparse representation has been successfully used for gearbox …

Over the last decade, sparse representation has become a powerful paradigm in
mechanical fault diagnosis due to its excellent capability and the high flexibility for complex …

Fault diagnosis of gearbox is very important for the security and reliability of the equipment.
In actual working conditions, multiple faults usually occur in a gearbox. However, the multi …

Compound faults often occur in rotating machinery, which increases the difficulty of fault
diagnosis. In this case, blind source separation, which usually includes independent …