Superconducting magnet system on Maglev train generates high levitated magnetic force between ground coils. However, the magnet is vibrated at 308 Hz by the electromagnetic disturbance which occurs during the train passes over ground coils. Vibration of train causes the increase in liquid helium evaporation due to the frictional heat generation between the interface of the magnet structural materials. In this study, we investigate the frictional properties of structural materials at 300 Hz in liquid helium under fretting conditions. Furthermore, we consider the liquid helium evaporation properties.
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