# Nonlinear torsional vibration analysis of motor rotor system in shearer semi-direct drive cutting unit under electromagnetic and load excitation

> Research article (Nonlinear Dynamics, 2019) · cited 34× · AI/ML

**Wikidata**: [openalex:W2921062901](https://www.wikidata.org/wiki/openalex:W2921062901)  
**Source**: https://4ort.xyz/entity/nonlinear-torsional-vibration-analysis-of-motor-rotor-system-in-shearer-semi-direct-drive-cutting-unit-under-electromagn