Radial permanent magnet electrodynamic wheels(PMEDW)offer a distinctive advantage through their integration of levitation and propulsion.However,they are prone to non-air-gap side magnetic flux leakage,resulting in a reduced utilization rate.To address this limitation and improve their load-carrying capacity through levitation,this paper proposes a novel magnetization scheme for PMEDWs,with the objective of enhancing their levitation drive capability without altering their overall mass.The proposed design em-ploys a PMEDW structure featuring obliquely magnetized permanent magnets and radially magnetized permanent magnets,which are equally inserted between adjacent permanent magnets.The study investigated the basic principle of the permanent magnet wheel struc-ture modified by introducing new magnetization methods.A three-dimensional finite element model was created to determine the optimal size of each structure through a solving process that incorporates two performance indexes:the levitation-to-weight and levitation-to-drag ratios.The simulation results revealed that the levitation force of the permanent magnet wheel structure increased by 14.8％with the introduction of obliquely magnetized permanent magnets,while the propulsion force showed a 14.98％enhancement.The permanent magnet wheel structure with equally inserted radially magnetized permanent magnets demonstrated a 9.2％increase in levitation force and a 7.6％improvement in propulsion force,respectively.The study findings indicate the proposed magnetization methods effectively elevate both the levitation and propulsion forces of the system,while maintaining the consumption of permanent magnets unchanged.The novel design not only reduces cost but also enhances the operating efficiency of the system,providing insights for future optimiza-tions of the PMEDW structure and the design of magnetically levitated vehicles.
维普
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