电工技术学报2017，Vol.32Issue(9)：48-55,8.
径向换能型超声波电机定子振动模型
Stator Vibration Model of a Radial Energy Conversion Ultrasonic Motor
摘要
Abstract
A radial energy conversion ultrasonic motor with elastic blades is proposed in this paper.The structure and the operational principle of the motor are presented.The analytical model for the free and the forced radial vibration of the stator is investigated.Meanwhile,in order to carry out the contrast verification,the finite element model of the stator is developed as well as the modal and the harmonic analysis are conducted.The first order resonant frequency of the stator vibration in radial direction and the forced radial vibration amplitude stimulated by the applied voltage are obtained based on the two proposed models,and good agreements between the results obtained from the two models are observed.The first order resonant frequency of the stator radial vibration is measured with impedance analyzer,and the forced radial vibration amplitudes of the stator surface points stimulated by the applied voltage are measured with laser Doppler velocimeter.The experimental results are compared with the theoretical results and good agreements are obtained,which verifies the proposed analytical model and the finite element model for the stator vibration.Finally,a prototype machine is manufactured to verify the operational principle of the proposed radial energy conversion ultrasonic motor.关键词
超声波电机/径向换能/定子振动/解析模型/有限元模型Key words
Ultrasonic motor/radial energy conversion/stator vibration/analytical model/finite element model分类
信息技术与安全科学引用本文复制引用
蒋春容,董晓霄,张津杨,金龙..径向换能型超声波电机定子振动模型[J].电工技术学报,2017,32(9):48-55,8.基金项目
国家自然科学基金(51507076)、江苏省自然科学基金(BK20140766)和江苏省配电网智能技术与装备协同创新中心开放基金(XTCX201610)资助项目. （51507076）
