Force and Torque Assessment in a Rotating to Linear Motion Magnetic Converter with Gearing Capability

The paper investigates the force and torque contributions in a rotating to linear magnetic motion converter (RLMMC) with gearing capability for the contact-less transmission of the mechanical power. In addition to the thrust density, a set of parameters is calculated by finite element analyses reproducing possible sources of noise and stresses on the magnetic parts. The evaluation is carried out on a RLMMC sized to operate small size sliding loads with the purpose to eliminate the mechanical gear transmission. After a parametric analysis, an optimized configuration will be identified considering also the manufacturing simplicity and the losses in the solid parts.