thrust fluctuation

The FEM calculation results prove that the thrust fluctuation of the motor can be effectively cut down with proposed method.

计算了不同磁极宽度情况下的电机推力，结果表明采用该方法可以有效减小电机的推力波动。

For air-gap magnetic field and thrust curves in various pole pairs and on the occasion of no-load, the more poles in motor, the more periodic distributing the air-gap magnetic field is, while the less the thrust fluctuation is.

在分析不同极对数时的气隙磁场和推力曲线时，极数越多的直线电机在空载时的气隙磁场分布越具有周期性，推力的波动也随着极数的增加而减小。

In this paper, a model was constructed on the base of BP neural network to estimate the thrust fluctuation.

本文运用BP神经网络，建立了波动力估计模型，实现了波动推力补偿指令的计算。