Research on Structural Strength of Rotor of High Power Permanent Magnet Disk Motor
In order to solve the problem that the rotor of disk motor is damaged by centrifugal force when ro-tating at high speed,a disk motor rotor structure based on the flywheel rotor structure of energy storage was designed in this paper.By comparing and analyzing the structural strength of the rotor of the traditional disc motor,a method of using the high strength of the flywheel rotor material to offset the centrifugal force genera-ted by the motor disc and magnetic steel was proposed,so as to increase the maximum speed limit of the disc motor rotor.By analyzing the strength of the rotor structure of the new type disk motor under different speed,the maximum stress curves of the rotor and disk were obtained.The results show that the theoretical maxi-mum speed of the new disc motor rotor structure is 4.3 times that of the surface mounted structure and 2.7 times that of the embedded structure,respectively.In order to further improve the performance and reliabili-ty of the rotor structure of the new type disk motor,a calculation method for the optimal interference of the rotor structure of the new type disk motor was presented.By comparing the safety factor of motor disc and ro-tor at static and rated speed under different interference,the optimal interference value was obtained.The new disc motor rotor structure designed in this study has great practical application value,and can provide a high performance and high speed disc motor rotor solution for energy storage flywheel and other fields.
Disc motor rotorstructural strengthsimulation analysismaximum stress
NETL
NSTL
万方数据
维普
