A ring-type traveling wave ultrasonic motor using optimized design of piezoelectric ceramics

Author

Xiaoxiao Dong ; MinQiang Hu ; Long Jin ; Peng Pan

Author_Institution

Coll. of Electr. Eng., Southeast Univ., Nanjing, China

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

3083

Lastpage

3086

Abstract

This paper presents and verifies an idea for enhancing the vibration amplitude of a stator. In the optimized structure, two polarization areas are added to make full use of a piezoelectric ceramic. Vibration expressions of the stator are then derived to validate the feasibility of the design. Furthermore, a hollow ring-type ultrasonic motor (USM) is designed to coordinate the piezoelectric ceramic and structure of the motor is optimized by Finite Element Method (FEM) analysis. The resonant frequency is calculated by modal analysis and harmonic response analysis indicates that vibration amplitude of the stator has increased by 14.2%. Finally, a prototype is fabricated and simulation results are verified by experiment.

Keywords

finite element analysis; harmonic analysis; modal analysis; piezoceramics; stators; ultrasonic motors; vibrations; FEM analysis; USM; design optimized; finite element method analysis; harmonic response analysis; modal analysis; piezoelectric ceramic; polarization area; resonant frequency; ring-type traveling wave ultrasonic motor; stator; vibration amplitude; Acoustics; Ceramics; Finite element analysis; Prototypes; Rotors; Stators; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7014024

Filename

7014024