Abstract
Thanks for the precision engineering technology, motor, especially Permanent Magnet Synchronous Motor can be made as Micro-motor. However, any imprecise rotor parts of this meticulous motor could lead to undesirable vibration and acoustic noise (Yu et al. in 3D influence of unbalanced magnetic pull induced by misalignment rotor in PMSM, APMRC2012, 2012; Bi et al. in Influence of axial asymmetrical rotor in PMAC motor operation, ICEMS, 2011; Bi et al. in Influence of rotor eccentricity to unbalanced-magnetic-pull in pm synchronous motor, ICEMS06, 2006). This paper presents five types of rotor faults design and vibration study of these five types of faults in motor is conducted. Based on the vibration pattern, fuzzy mathematics is employed to classify these five types of rotor faults.
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