In order to study the influence of eccentric fault on the performance of the cylindrical linear motor,a mathematical model of unilateral magnetic pull force of cylindrical linear motor under eccentric condition is established by using Maxwell theory.We use Maxwell software to model the motor model under eccentric conditions,and compare the changes in the electromagnetic field and rotor force under different eccentric distances and angles.The results show that the unilateral magnetic pull force acting on the rotor increases linearly with the eccentric distance increases.When the eccentricity increases to 0.8,the unilateral electromagnetic force reaches a high of 847 N,and the torque increases with the increase of the oblique eccentricity angle of the rotor.When the eccentric angle is 0.8°,the torque reaches 1.66 N·mm,but the increase of the eccentric angle has little effect on the force on the rotor.
关键词
圆筒型直线电动机/偏心状态/单边磁拉力/电磁仿真
Key words
cylindrical linear motor/eccentric conditions/unilateral magnetic force/electromagnetic simulation
维普
万方数据