Stator Vibration Model of a Radial Energy Conversion Ultrasonic Motor
Jiang Chunrong1, Dong Xiaoxiao2, Zhang Jinyang1, Jin Long2
1.School of Electric Power Engineering Nanjing Institute of Technology Nanjing 211167 China; 2.School of Electrical Engineering Southeast University Nanjing 210096 China
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.
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.
Jiang Chunrong, Dong Xiaoxiao, Zhang Jinyang, Jin Long. Stator Vibration Model of a Radial Energy Conversion Ultrasonic Motor. Transactions of China Electrotechnical Society, 2017, 32(9): 48-55.
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2017, Vol. 32 
