摘要
为了保证微小型电机的速度和承载能力,同时获得较高的运转分辨率,提出一种以压电叠堆为驱动元件基于尺蠖运动原理的新型精密旋转电机方案。电机结构中转子无绕线结构,定子采用柔性铰链双侧对钳方式交替对转子起到钳位作用。对电机工作原理进行了分析研究,采用MSC Patran/Nastran有限元软件对机械结构进行了仿真分析,并对所开发的电机样机进行了实验测试。测试结果与理论分析结果基本相符,所开发样机的旋转速度可达3308．6μrad/s、输出扭矩为0．294N·m、单步最小转角(旋转分辨率)为 0．206μrad。电机性能稳定可靠,可望在光学工程、精密工程等相关领域得到应用。
In the interest of getting good performance of speed and loading capability of the micro motor, at the same time ensuring the high rotary resolution, put forward a kind of new precise rotary motor using piezoelectric stack as actuating element based on inchworm motion. There is no electric elements in the rotor. And the stator clamps the rotor by flexible hinge clamping structures in symmetrical directions. Analyze the working principle of the motor, and carry on the simulation analysis to the mechanism by MSC Patran/Nastran finite element software. Do experiment to the motor prototype, and the test results are in agreement with the theoretical analysis results essentially. To the prototype the rotary velocity is 3308.6microradian/sec, the output torque is 0.294N.m, and the minimum stepping angle （rotary resolution） is 0.206 microradian. The motor works stably and reliably, and hoped be used in optics engineering and precision engineering etc.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第10期166-171,共6页
Proceedings of the CSEE
基金
国家自然科学基金项目(2002AA423150)
国家863高技术基金项目(50475010)
关键词
精密转动
有限元仿真
压电叠堆
柔性铰链
尺蠖运动
precise rotation
finite element simulation
piezoelectric stack
flexible hinge
inchworm motion
