摘要
为了解决仿生视觉用多自由度电机的驱动能力不足和定位困难的问题,提出了两种新型复合驱动式三自由度电机结构,分别采用有限元法、解析法求解分析其磁场和转矩。为了准确的说明复合驱动式三自由度电机的可行性,首先对两个不同结构分别建模,然后分析不同转子结构下的气隙磁密值,再结合计算结果绘制出气隙磁密的三维分布图,并给定子线圈通以不同电流,结合转动角度,获得转矩的三维特性,最后基于解析法在球坐标系下建立电磁系统的数学模型,将两种方法的求解结果进行对比验证。结果证明了电机结构的合理性,为进一步的设计与优化研究提供了理论基础。
In order to solve the driving ability of multi-degree-of-freedom motor for bionic vision applications is insufficient and difficult positioning problems, two kinds of new combined drive three -degree -of-freedom motors＇ structure are put forward. The finite element method and the analytical method are used to analyze the magnetic field and torque respectively. In order to accurately show the feasibility of combined drive three-degree-of-freedom motor, two different structural modeling are performed respectively, and then the air gap flux density under different rotor structures are analyzed. The 3D distribution diagrams of the air gap flux density are plotted with the calculation results. And the 3D characteristics of the torque are derived by electrifying the stator coils with different currents combined with the rotation angle. Finally, based on the analytical method, the mathematical model of the electromagnetic system is built, and the results of two methods are compared to prove the rationality of the motor structure, which provides the theoretical basis for further design and optimization.
出处
《机械设计与制造》
北大核心
2017年第4期50-54,共5页
Machinery Design & Manufacture
基金
国家自然科学基金项目(51577048
51107031)
河北省自然科学基金项目(E2014208134)
安徽省工业节电与电能质量控制协同创新中心开放课题基金资助项目(KFKT201501)
关键词
三自由度电机
有限元法
解析法
气隙磁密
转矩
3-Degree-of-Freedom Motor
The Finite Element Method
Analytical Method
The Air Gap Flux Density
Torque
