The design and experiment of a novel ultrasonic motor based on the combination of bending modes

Jipeng Yan; Yingxiang Liu; Junkao Liu; Dongmei Xu; Weishan Chen

doi:10.1016/j.ultras.2016.07.002

The design and experiment of a novel ultrasonic motor based on the combination of bending modes

Ultrasonics. 2016 Sep:71:205-210. doi: 10.1016/j.ultras.2016.07.002. Epub 2016 Jul 5.

Authors

Jipeng Yan¹, Yingxiang Liu², Junkao Liu¹, Dongmei Xu¹, Weishan Chen¹

Affiliations

¹ State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
² State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China. Electronic address: liuyingxiang868@hit.edu.cn.

PMID: 27400216
DOI: 10.1016/j.ultras.2016.07.002

Abstract

This paper presents a new-type linear ultrasonic motor which takes advantage of the combination of two orthogonal bending vibration modes. The proposed ultrasonic motor consists of eight pieces of PZT ceramic plates and a metal beam that includes two cone-shaped horns and a cylindrical driving foot. The finite element analyses were finished to verify the working principle of the proposed motor. The mode shapes of the motor were obtained by modal analysis; the elliptical trajectories of nodes on the driving foot were obtained by time-domain analysis. Based on the analyses, a prototype of the proposed motor was fabricated and measured. The mechanical output characteristics were obtained by experiments. The maximal velocity of the proposed motor is 735mm/s and the maximal thrust is 1.1N.

Keywords: Bending mode; Linear driving; Single driving foot; Ultrasonic motor.

Publication types

Research Support, Non-U.S. Gov't