一种圆筒型转子的中空型超声电机的研制  

Development of A Hollow Ultrasonic Motor With Cylindrical Rotor

作　　者：王楠[1] 陈超[1] 陈金燕 WANG Nan;CHEN Chao;CHEN Jinyan(State Key Lab.of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,江苏南京210016

出　　处：《压电与声光》2019年第2期203-206,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(51575259);国家重点基础研究发展计划("九七三"计划)基金资助项目(2015CB057500);中央高校基本科研业务费专项基金资助项目(NS2015004)

摘　　要：针对某些飞行器舵机控制系统需要旋转型超声电机具有中空结构、转子与负载结构融合以及具备一定的保持力矩等特定工程技术需求,该文提出了一种圆筒型转子与舵翼结构一体设计(外圈输出)的中空型超声电机,开展了该型电机的结构及预压力施加方案的设计和试验研究。建立了电机定子的有限元模型,分析了不同结构尺寸对定子模态的影响,进行了结构尺寸的灵敏度分析,优化了定子的结构,计算出其共振频率、振动幅值。最后试制出了原理样机。实验表明,在激励电压为450 V,激励频率为40.2 kHz时,样机的空载转速可达208 r/min,堵转力矩可达0.35 N·m。In this paper,a hollow ultrasonic motor with integrated design of cylindrical rotor and rudder wing(outer ring output)is proposed to meet the needs of a rotating ultrasonic motor control system with a hollow structure,a fusion of rotor and load structure and a certain holding torque of some aircraft rudder control systems.The design and experimental study of the structure and pre-pressure applied scheme of the motor are carried out.The finite element model of the stator of the motor is established,and the influences of different structure sizes on the stator mode are analyzed.The sensitivity analysis of the structure size is carried out,the structure of the stator is optimized,and the resonance frequency and vibration amplitude are calculated.Finally,a prototype has been fabricated.The experimental results show that when the excitation voltage is 450 V and the excitation frequency is 40.2 kHz,the no-load speed of the prototype can reach 208 r/min and the blocking torque can reach 0.35 N·m.

关 键 词：中空 外圈输出 超声电机 有限元 尺寸优化 

分 类 号：TN384[电子电信—物理电子学]