| Summary: | 碩士 === 國立中正大學 === 機械系 === 88 === The electrical motors performance capability and its manufacturing cost are must be taken into consideration at same time during the design stage. However, the excellent design skill is the key to the success for the electric motor companies.
One of the most important development directions of induction servomotor is the high speed rotation of the rotor shaft. Among those, the bearings are the main key components. In order to satisfy the various operating conditions, the supporting structure of a rotor are becoming very important role in the design.
One of the most important study in this thesis is to investigate the best arrangement of the rotor-bearing systems under varying parameters during the operation. For the components of the supporting system, the arrangement of the bearings and geometry of the rotor shaft become the main roles in the performance of the entire motor. Because of the size of the bearings and the rotor shaft of the motors are constrained by the rotating speed of the bearing, the strength of the shaft will be decreased as rotating speed is increased.
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