Development of a MAGLEV superconducting magnet for the Yamanashi test line in Japan: Vibration characteristics and analysis for design

A high-performance and high-reliability magnetically levitated (MAGLEV) superconducting magnet (SCM) was developed, Its heat generation per unit time by the electromagnetic forces due to the spatially fifth ripple magnetic fields from levitation coils Is under 2 W at the frequency range in which vehicles are levitated, The vibration mode of inner vessels that makes the largest contribution to heat generation in SCM's is clarified, the torsion mode, A modeling method to analyze SCM vibration, which considers the effect of the bogie frames of a vehicle, is examined, and heat generation in SCM's is calculated from the vibration of the inner vessel, Using the numerical analysis method, new SCM's combined with new bogie frames for the Yamanashi Test Line are designed, Good performance in vibration and heat generation of these SCM's is predicted by numerical analysis.