In order to improve the thrust density of the electric actuator in aircraft, a double primary tubular permanent magnet synchronous linear motor is designed. By establishing the magnetic circuit model, the air gap magnetic density and thrust characteristics of outer and inner primary motors are analyzed. Considering that it works in the wide temperature range environment, a multi-objective optimization of motor is carried out. The surrogate model established by neural network is used to simplify the mathematical model of the motor. In order to improve the average thrust, restrain the thrust fluctuation and reduce the difference of output thrust under different environment temperatures, the Pareto front method is used to determine the target range of the optimal parameters, and gradually strengthen conditions, so as to obtain the optimal scheme of motor design.

中文翻译：

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基于Pareto前沿法的宽温区双初级管状永磁同步直线电机多目标优化


为了提高飞机电动执行机构的推力密度，设计了双初级管状永磁同步直线电机。通过建立磁路模型，分析了外、内初级电机的气隙磁密和推力特性。考虑到其工作在宽温度范围环境下，对电机进行了多目标优化。利用神经网络建立的代理模型来简化电机的数学模型。为了提高平均推力、抑制推力波动、减小不同环境温度下输出推力的差异，采用Pareto前沿法确定最优参数的目标范围，并逐步强化条件，得到电机设计的优化方案。