S. Ohashi et al., Three dimensional vibration of the HTSC-permanent magnet bearing system inthe mechanical resonant state, IEEE APPL S, 11(1), 2001, pp. 1812-1815
The three dimensional vibration of the rotor in a HTSC-permanent magnet bea
ring system is studied. We have developed the bearing system which can revo
lve up to 12,000 rpm, and the three dimensional vibration of the rotor is m
easured with laser displacement sensors. The shape of the rotor has been im
proved, and influence of the air resistance: becomes small, The vibration o
f the rotor around the mechanical resonance frequency is investigated. Both
columnar and conical behavior of the rotor are confirmed and mainly column
ar motion is observed.