Magnetic damping and stiffness coefficients in superconducting Maglev system with sheet guideways

Journal Article · · Electr. Eng. Jpn. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1002/eej.4390990612· OSTI ID:6668818

Yoshida, K; Takakura, M

The magnetic damping and stiffness coefficients are shown to be closely associated not only with the eddy current induced in the sheet directly by the vertical motion of vehicles but also with another kind of eddy current which is induced by the variation of vehicle coil current due to the vertical motion of vehicles. Also performed is space harmonic analysis to clarify the end effect of vehicle coils. The magnetic damping coefficient is shown to become positive at least in the constant current mode. Also shown is that the magnetic damping coefficient and the stiffness coefficient are always positive in both constant and persistent current modes if the vehicle coils are arranged in alternate polarities, but their values vary considerably depending upon the current mode.

• OSTI ID: 6668818
• Journal Information: Electr. Eng. Jpn. (Engl. Transl.); (United States), Vol. 99:6; Other Information: Translated from Denki Gakkai Ronbunshi; 99B: No. 12, 797-804(Dec 1979)
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
LEVITATED TRAINS
DAMPING
AAPS
ANALYTICAL SOLUTION
EDDY CURRENTS
MAGNET COILS
MOTION
SUPERCONDUCTING MAGNETS
CURRENTS
ELECTRIC COILS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
SUPERCONDUCTING DEVICES
TRAINS
VEHICLES
330300* - Advanced Propulsion Systems- Electric-Powered Systems