# A phase angle based diagnostic scheme to planetary gear faults diagnostics under non-stationary operational conditions

> Research article (Journal of Sound and Vibration, 2017) · cited 64× · AI/ML

**Wikidata**: [openalex:W2736642970](https://www.wikidata.org/wiki/openalex:W2736642970)  
**Source**: https://4ort.xyz/entity/a-phase-angle-based-diagnostic-scheme-to-planetary-gear-faults-diagnostics-under-non-stationary-operational-conditions