# Nonlinear normal modes and primary resonance for permanent magnet synchronous motors with a nonlinear restoring force and an unbalanced magnetic pull

> Research article (Nonlinear Dynamics, 2019) · cited 27× · AI/ML

**Wikidata**: [openalex:W2952346873](https://www.wikidata.org/wiki/openalex:W2952346873)  
**Source**: https://4ort.xyz/entity/nonlinear-normal-modes-and-primary-resonance-for-permanent-magnet-synchronous-motors-with-a-nonlinear-restoring-force-an