A Short Ultrasonic Motor Stator with Square Base

摘要：

　　Length and support mode are the key to restrict the ultrasonic motor miniaturization.This paper presents a miniature langevin-type ultrasonic motor stator,it has both short length and simple support mode.With fixed-free ends,the stator adopts a square base and is fixed at its four corners.A new excitation mode is utilized to solve the problem of insistence of excitation position in the conventional excitation mode.Since the stator is unsymmetrical along the circumferential direction,there should be an optimal excitation angle.By using finite element method,axial displacement and radial displacement of nodes are achieved along the outer edge of the upper end of the stator when excitation angle is changed,then the results are analyzed and the conclusion can be reached that 45o is the optimal excitation angle.Finally,a photo of the stator prototype is presented.

关键词： Ultrasonic Motor Fixed-free End Excitation Angle Finite Element Method

作者: Rui Xia Wang Long Jin Zhi Ke Xu Min Qiang Hu

作者单位: School of Electrical Engineering, Southeast University, Nanjing, China;School of Automation, Nanjing School of Electrical Engineering, Southeast University, Nanjing, China

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）