Title :
Property of Mechanical Heat Generation Inside the Superconducting Coil Installed in MAGLEV Inner Vessel
Author :
Yoshino, Y. ; Iwabuchi, A. ; Suzuki, T. ; Seino, H.
Author_Institution :
Hachinohe Nat. Coll. of Technol.
fDate :
6/1/2006 12:00:00 AM
Abstract :
Superconducting magnets for MAGLEV train are vibrated around 300 Hz when the train passes through the ground coils. This mechanical vibration will make the frictional heat generation. The coefficient of friction and the liquid helium evaporation for the combination of copper versus polyimide films on substrate was measured at 300 Hz in this study. The coefficient of friction increased around 2.7 with increasing the film thickness. The heat generation increased around 0.95 W with increasing the film thickness. However, the heat generation with single thin films did not increase
Keywords :
cooling; copper; friction; magnetic levitation; polymer films; railway engineering; railways; superconducting coils; superconducting magnets; vibrations; 300 Hz; Cu; Maglev inner vessel; Maglev train; coefficient of friction; cooling; copper films; film thickness; frictional heat generation; ground coils; liquid helium evaporation; mechanical heat generation; mechanical vibration; polyimide films; substrate; superconducting coil; superconducting magnets; Copper; Friction; Helium; Magnetic levitation; Mechanical factors; Polyimides; Superconducting coils; Superconducting films; Superconducting magnets; Vibrations; Cryogenics; frequency; friction; mechanical engineering; superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.864308
