摘要
为解决纵弯超声波电动机电路匹配和结构设计复杂的问题,介绍了一种新型纵弯复合型超声波电动机结构,该电机由4个纵弯超声换能器组成。介绍了电机的结构并且对其运行原理进行了分析,其次运用有限元法通过调整结构参数实现了超声换能器的纵弯模态简并,接着运用ANSYS对超声换能器进行了瞬态分析,得到了驱动足质点的椭圆运动轨迹。最后研制了原理样机并进行测试,测得该电机的最高转速为96 r/min,最大转矩为3.8 N·m。
In order to solve the problems of ricuit matching and structure design of the ultrasonic motor with longitudinal-bending composite mode. A new ultrasonic motor with longitudinal-bending mode was prosposed, which made up of four longitudinal-bending transducer. The structure and movement principle of the motor was analyzed, the longitudinal and ben- ding resonant frequencies of ultrasonic motor transducer were degenerated by changing structure parameters in using the fi- nite element method. The transient analysis was carried out for the transducer by ANSYS and the ellipse motion of the driving points was degenerated. The principle prototype was fabricated and tested, the highest speed was 96 r/min and torque output was 3.8 N · m.
出处
《微特电机》
北大核心
2017年第6期34-36,共3页
Small & Special Electrical Machines
关键词
超声波电动机
纵弯换能器
有限元法
ultrasonic motor
longitudinal-bending transducer
finite element method （ FEM ）
