利用有限元和ACSL方法对两相HB型线性步进电机振动的分析

The vibration analysis to the normal force of 2-phase HB type linear stepping motor using FEM and ASCL

综合考虑转子在其移动方向上的振动和相对于定子垂直方向上的振动,以HLSM结构为基础建立了等效磁路,并利用等效磁路推导出了HLSM的等效电路。同时,使用有限元方法分析了HLSM中与位移相关的垂直力的分布并推导出近似计算公式,并最终推导出了适合于解决单项励磁方式为条件的动子在其移动方向上的振动和相对于定子垂直方向上的振动的电压公式和推力即垂直力公式和运动公式,并用ACSL进行了模拟分析。

In this paper, the vibration characteristics of a 2-phase HB type linear stepping motor(HLSM) are analyzed using the finite element method (FEM: Flux2D) and ACSL. A magnetic equivalent circuit is based on the structure of the HLSM, and then the electric equivalent circuit of the HLSM is derived by solving equations for the magnetic equivalent circuit. A normal force is calculated using FEM. And the vibration characteristics of the HLSM are simulated by the ACSL with the voltage equations, the thrust equations, the normal force equations and the kinetic equations.