Title :
A passive damper for magnetic suspension
Author :
Nguyen, V. ; Delamare, J. ; YONNET, J.P.
Author_Institution :
Lab. d´´Electrotech. de Grenoble, Saint Martin d´´Heres, France
fDate :
11/1/1994 12:00:00 AM
Abstract :
A new structure for a magnetic passive damper is described that provides high efficiency damping thanks to variations of reluctance. Its operating conditions are determined by analysing its frequency range and its axial behaviour. By using a 2D finite element program, its damping coefficient is calculated. Compared to a traditional damper, the system proposed is much more efficient
Keywords :
eddy currents; finite element analysis; magnetic devices; 2D finite element program; axial behaviour; damping coefficient; high efficiency; magnetic suspension; operating conditions; passive damper; reluctance variations; Conductors; Damping; Eddy currents; Magnetic analysis; Magnetic fields; Magnetic levitation; Permanent magnets; Shock absorbers; Suspensions; Vibrations;
Journal_Title :
Magnetics, IEEE Transactions on
