Viable arcuate double-sided magnetic gear for competitive torque density transmission capability

Magnetic gears (mgs) offer significant potential advantages relative to conventional mechanical gears, such as: no contact, no friction, no lubrication, inherent overload protection, and freeness from noise and vibration. despite these superior features, they have received little attention due to complexity of operation and relatively low torque density transmission. this paper introduces a new magnetic gear topology with a highly competitive torque density transmission capability. this configuration is inspired by combination of the traditional radial and axial ux mgs. the assurance of accuracy based on a basic design of axial ux magnetic gear dimensions leads to proof-of-concept arcuate double-sided mg. the proof-of-concept seeks to provide a better solution to theproblems of ux maldistribution and concentration compared to what has been proposed previously. thus, torque density performance of this mg is intensively augmented. the cogging torque is also computed in further simulations. however, this requires advanced numerical techniques and, hence, 3-dimensional simulations for calculating localized ux density and the corresponding torque density. completion of this development will mark an important milestone in magnetic gear technology, and significant performance improvement will be realized.