Magnetically suspended flywheel in gimbal mount - Test bench design and experimental validation

Abstract

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Vibration Analysis and Active Control of Rotor Shaft in Magnetically Suspended Air-Blower

“…Furthermore, the displacement of the inertial principal axis is q i = [x i , β i , y i , −α i ] T , and the displacement of the geometrical principal axis is q g = [x g , β g , y g , −α g ] T . The relationship between the coordinates of radial AMB and displacement sensor are expressed into q m = T T f q g q s = T s q g (14) where…”

“…The vibration performance of the magnetically suspended flywheel was measured, and then the test rig and subcomponents were used to govern the dynamics of the flywheel rotor. The results implied that the maximum displacement of the flywheel rotor was reduced by 37% [14], but the active control method for the nutation vibration and precession vibration were not studied. The vibration model of a magnetically suspended motor with slim rotor was studied in [15], and a novel notch filter was designed for suppressing the harmonic vibration of the slim rotor.…”

Implementation of vibration and stability evaluation criteria for rotating machineries equipped with active magnetic bearings

“…Consequently, it brings about many advantages such as high speed, high power density, less maintenance, and lower cost. 1 AMB have become alternatives to high-performance bearings in many applications, ranging from industrial centrifugal compressor, 2 highspeed centrifugation, 3 flywheel energy storage system, 4 to astronautic three-axis inertially stabilized platform, 5 suspended gyro. 6 Similar to any other rotating machines, machineries equipped with AMB own imbalance vibration problems as well.…”