.... The modulation method can effectively address the interaction between the rotor–stator components in PM motors [ 17 ] and turbine machines [ 39 , 40 ]. Note that the previous studies are based on perfect symmetry, though there exist structural and magnetic imperfections in practice, and especially three kinds...

... vibration and clarify the corresponding relationships between the free and parametric vibrations in the context of the rigid-elastic vibration of cyclically symmetric power-transmission systems. This work deals with the in-plane vibration of the PM motors with emphasis on the analytical prediction...