title: The design and experiment of a novel ultrasonic motor based on the combination of bending modes.
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.
authors.affiliation: State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
authors.forename: Jipeng
authors.initials: J
authors.lastname: Yan
authors.affiliation: State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China. Electronic address: liuyingxiang868@hit.edu.cn.
authors.forename: Yingxiang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
authors.forename: Junkao
authors.initials: J
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
authors.forename: Dongmei
authors.initials: D
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
authors.forename: Weishan
authors.initials: W
authors.lastname: Chen
keywords: Bending mode; Linear driving; Single driving foot; Ultrasonic motor