非接触式电磁驱动器的驱动力解析及动力学仿真分析

Driving force analysis and dynamics of a non-contact electromagnetic actuator

电磁驱动是通过改变输入电流及各电磁铁与导磁体的气隙大小控制磁力,进而实现非接触式电磁驱动的技术。采用永磁支撑电磁驱动方式构建一种电磁驱动器,以电磁驱动力的数学模型为基础,建立非接触式电磁驱动器的动力学模型,并对电磁驱动器的响应特性进行数字仿真研究。结果表明,该电磁驱动器具有很好的动态特性。

Electromagnetic actuator is a non-contact magnetic drive technology by changing input current and the air gap length between electromagnets and magnetizers. This paper constructs an electromagnetic levitation actuator. Based on the numerical model of the electromagnetic actuator,the analysis on suspension dynamics of the actuator is carried out using numerical simulation. The results indicate that the proposed electromagnetic actuator has a good response characteristic.