With the development of Electrodynamic Suspension (EDS) maglevs for future railway transportation, the coupling relationship between superconducting magnets (SCMs) and track coils has drawn increasing attention. This article presents a novel study on the impact of the SCMs tilting angle θ with detailed electromagnetic-force analysis for EDS maglevs, addressing the insufficient consideration of SCMs tilting effects in previous studies. Using finite element method (FEM) simulations with the rotating mechanical magnetic (rmm) module, combined with the A-V mixed formulation and linear extrusion operator function, the electromagnetic characteristics of the suspension coils were analyzed as SCMs passed at 600 km/h with tilting angles θ ranging from 0° to 11°. Results indicate that θ altered the electromagnetic characteristics, broadened the magnetic flux density distribution. The induced current density exhibited a different response, with a notable increase in the z-axis direction and a phase advance of 1/4 cycle. The variation in electromagnetic force was similar to that of current density. These phenomena were mainly due to the closed-loop feedback mechanism of the suspension coils, which adaptively compensated for asymmetric magnetic coupling distortion. Overall, a novel study was conducted on the impact of the SCMs tilting angle θ for EDS high-speed maglevs, providing a theoretical basis for understanding complex coupling behaviors, and offering strategies for improving the structure and suspension system of future EDS maglevs.
Fu et al. (Fri,) studied this question.