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- Title
Compound Fault Characteristic Analysis for Fault Diagnosis of a Planetary Gear Train.
- Authors
Ren, Yulin; Li, Guoyan; Li, Xiong; Zhang, Jingbin; Liu, Runjun; Shi, Sifan
- Abstract
The carrier eccentricity error and gear compound faults are most likely to occur simultaneously in an actual planetary gear train (PGT). Various faults and errors are coupled with each other to generate a complex dynamic response, which makes the diagnosis of PGT faults difficult in practice. In order to analyze the joint effect of the error and the compound faults in a PGT, a carrier eccentricity error model is proposed and incorporated into the TVMS model by considering the time-varying center distance, line of action (LOA), meshing angle, and contact ratio. Then, the TVMS of the cracked gear is derived based on the potential energy method. On this basis, the dynamic model of a PGT with both the carrier eccentricity error and compound gear cracks as internal excitations are established. Furthermore, the meshing characteristics and dynamic responses of the PGT are simulated to investigate the compound fault features. A series of experiments are conducted to further analyze the influence of the compound fault on the vibration response. The relevant conclusions can provide a reference for the compound fault diagnosis of a PGT in practice.
- Subjects
PLANETARY gearing; FAULT diagnosis; SPUR gearing; ECCENTRICS (Machinery); POTENTIAL energy
- Publication
Sensors (14248220), 2024, Vol 24, Issue 3, p927
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s24030927