Structure design and mechanical characteristic test of cylindrical ultrasonic micromotor

Author

Wang, Jingshan ; Zhu, Hua ; Zhang, Jianhui ; Chen, Chao

Author_Institution

Precision Driving Lab., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2011

fDate

7-10 Aug. 2011

Firstpage

812

Lastpage

816

Abstract

This paper designed and developed a cylindrical ultrasonic micromotor on the basis of rectangle piezoelectric ceramics. The prototype motor is 2mm in diameter, 15mm in length and its weight is 0.28g. The finite element modal analysis of the stator was discussed. The first bending mode frequency 141KHz was obtained. Some mechanical characteristic of micromotor was evaluated. When the motor operates with the driving frequency at 103.2KHz and the peak value of driving voltage at 200V, its maximal rotation speed and the stall torque reach 531r/min and 0.52 mn·m.

Keywords

finite element analysis; mechanical testing; micromotors; piezoceramics; stators; ultrasonic motors; cylindrical ultrasonic micromotor; finite element modal analysis; frequency 103.2 kHz; frequency 141 kHz; mechanical characteristic test; rectangle piezoelectric ceramics; size 15 mm; size 2 mm; stator; structure design; voltage 200 V; Acoustics; Ceramics; Micromotors; Rotors; Stators; Torque; Vibrations; mechanical characteristic; modal analysis; piezoelectric; ultrasonic micromotor;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Automation (ICMA), 2011 International Conference on

Conference_Location

Beijing

ISSN

2152-7431

Print_ISBN

978-1-4244-8113-2

Type

conf

DOI

10.1109/ICMA.2011.5985766

Filename

5985766