DEVICE AND METHOD FOR INHIBITING VIBRATION OF SUPERCONDUCTING MAGNETIC SUSPENSION ROTOR

摘要

A device and a method for inhibiting vibration of a superconducting magnetic suspension rotor. The device comprises a rotor cavity housing (l), lateral coils (2, 13), a rotor-top plane (3), a superconducting rotor (4), a copper plate (5), pole shoes (6), a z-axial vibration measuring sensor (7), an x-axial vibration measuring sensor (8), a y-axial vibration measuring sensor (9) and a copper ring (11). The pole shoe (6) has a spherical inner surface. The two pole shoes are arranged symmetrically up and down to form a rotor cavity (10). The two annular lateral coils are closely attached to and fixed on an outer cylindrical surface of the rotor cavity housing. The z-axial vibration measuring sensor is connected to and fixed at the center of the copper plate. The x-axial vibration measuring sensor is mounted along the x-coordinate axis, and the y-axial vibration measuring sensor is mounted along the y-coordinate axis on the copper ring in the equatorial plane. The method for inhibiting vibration of a superconducting magnetic suspension rotor comprises: obtaining a rotation speed-amplitude curve of the rotor in the device for inhibiting vibration of a superconducting magnetic suspension rotor under multiple support rigidities; and obtaining, according to the rotation speed-amplitude curve, a low amplitude by selecting a predetermined support rigidity under a predetermined rotation speed, the multiple support rigidities being realized by allowing different currents to pass through the upper lateral coil and the lower lateral coil. The device for inhibiting vibration of a superconducting magnetic suspension rotor has low power consumption, and the method is simple but effective.