摘要
构建了一种新型磁悬浮工作平台结构,该平台结构利用电磁线圈与永磁阵列提供水平洛仑兹力,利用电磁铁提供悬浮驱动力,悬浮和驱动部分相互独立,避免了两者间的耦合问题。该平台具有悬浮力大、运动范围广、定位精密等特点。对悬浮电磁铁的电磁力特性进行了相关实验,对平台的动态特性进行了平台的仿真。分析结果表明,该平台的悬浮电磁力具有较好的可控性,并且平台具有较好的稳态特性。
A magnetic levitation system of motion platform was proposed. In the promising structure, the levitation and linear drive parts of the motion platform were separated and the coupling between them was minimized. A mover was driven by Lorentz force generated from the permanent magnetic array and electromagnetic coil, and levitated by magnetized force by electromagnets subsystem. It was made the stage had advantages of greater force output, wider motion area and precise positioning. Experimentation was design on characteristic of electromagnets subsystem. A simulation was processed about dynamic characteristic of motion platform. It was proved that the magnetic force war controllable and motion platform was levitated stably.
基金
国家自然科学基金资助项目(50875206)
高等学校博士学科点专项科研基金资助项目(200806980013)
关键词
磁悬浮
电磁力
洛伦兹力
magnetic levitation
magnetic force
Lorentz force
