Modeling and Analysis of a Magnetic Geared Linear Motor

A special magnetic geared tubular linear mo-tor which combines a tubular magnetic gear and a tubular linear motor for direct-drive applications is presented in this paper. The structure and operating principle of the machine are introduced, then magnetic flux distribution of the gear and thrust force generated by winding coils are simulated by using 2-D modeling. Finite-element calculation is used to confirm the accurate of results.