MANUAL DAMPER FOR SUPERCONDUCTOR BEARING FOR REDUCING DEFORMATION FROM HYSTERESIS BY MINIMIZING AMPLITUDE AT DANGER SPEED

摘要

PURPOSE: A manual damper for a superconductor bearing is provided to transmit damping force without contact by using damping force of actuating fluid for cooling a superconductor, and to reduce deformation from hysteresis by minimizing the amplitude at the danger speed. CONSTITUTION: A permanent magnet(16) is attached around a rotating body(17), and the rotating body is surrounded by a housing bearing(12). A superconductor(11) is arranged opposite to the permanent magnet, and supported by a superconductor bearing. The superconductor is fixed to a damper journal(14) in the bearing housing for interaction with the rotating body, and an elastic member(15) such as a leaf spring is mounted between the bearing housing and the damper journal to reduce vibration in turning the rotating body. Liquid nitrogen(13) or helium is charged in the bearing housing as cooling fluid, and the superconductor is spaced from the bearing housing.