Magnetic Actuator Design for Maximizing Force Using Level Set Based Topology Optimization
Magnetic Actuator Design for Maximizing Force Using Level Set Based Topology Optimization
复制标题
使用基于水平集的拓扑优化实现力最大化的磁致动器设计
DOI：
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复制
发表时间：
2009
影响因子：
2.1
通讯作者：
S. Min
中科院分区：
文献类型：
--
作者：
Sang;S. Min
为了获得轻量化和高性能，基于水平集的磁场拓扑优化对于需要精确的边界形状和拓扑变化的磁致动器的设计是很有前途的。本文提出了一种新的方案来设计磁致动器的最优结构，以最大化在运动控制位置施加的驱动力。引入水平集函数来表示铁磁材料的边界，确定了材料的磁阻特性。提出了在有限使用铁磁材料的情况下，使执行力在指定方向上最大化的优化问题。执行拓扑变化分析以引入孔，并且通过控制水平集传播的速度函数来驱动隐式材料边界的移动。将该方法应用于C芯执行器的设计。总结了优化设计比初始设计提供了更大的磁力和更少的材料消耗。
To obtain weight reduction and high performance, using level set based topology optimization in magnetic fields is promising for the design of magnetic actuators where the precise boundary shape and topological changes are required. This paper addresses a novel scheme to design the optimal configuration of a magnetic actuator for maximizing the actuating force applied at the location where the motion being controlled. Level set function is introduced to represent ferromagnetic material boundaries and material properties of the magnetic reluctivity are determined. The optimization problem is formulated for maximizing the actuating force to a specified direction under limited usage of ferromagnetic material. The topological change analysis is performed to introduce holes and the movement of implicit material boundaries is driven by speed functions that govern the level set propagation. The proposed method is applied to design C-core actuator. It is summarized that the optimal design provides higher magnetic force and less material usage than the initial design.