东南大学学报（自然科学版）Issue(1)：99-103,5.DOI:10.3969/j.issn.1001-0505.2014.01.018
中空环形行波超声波电机有限元接触模型
Finite element contact model of a hollow ring type traveling wave ultrasonic motor
摘要
Abstract
The focus of this paper is to study the contact model of a hollow ring type traveling wave ultrasonic motor used in the Canon auto-focus lens with the finite element method.First,the finite element contact model is built and the traveling wave motion is applied to the neutral plane of the sta-tor.The sloping elliptical motion of the stator surface and the contact status of the stator and the rotor are obtained.The motion of the stator and the rotor as well as the contact pressure in the contact sur-face are compared when the rotor is applied with no load torque and stalled.The contact pressure when the rotor is applied with no load is significantly different from the contact pressure when the ro-tor is stalled,which indicates that the load torque has an effect on the distribution of contact pres-sure.Then the proposed model is verified by experimental data.The analytical results are in good agreement with the experimental results.Finally,a new rotor is proposed and it is indicated that the torque-speed performance of the motor is optimized by adopting the new rotor.关键词
超声波电机/中空环形/接触模型/有限元法Key words
ultrasonic motor/hollow ring type/contact model/finite element method分类
信息技术与安全科学引用本文复制引用
蒋春容,胡敏强,金龙,徐志科..中空环形行波超声波电机有限元接触模型[J].东南大学学报（自然科学版）,2014,(1):99-103,5.基金项目
国家自然科学基金资助项目（51177014，51077011）、南京工程学院校级科研基金资助项目（YKJ201317）． （）
