An in-wheel type micro ultrasonic motor utilizing sector shaped piezoelectric vibrators

Author

Kanda, Takefumi ; Matsunaga, Yusuke ; Suzumori, Koichi

Author_Institution

Okayama Univ., Okayama

fYear

2007

fDate

4-7 Sept. 2007

Firstpage

1

Lastpage

6

Abstract

A micro ultrasonic motor using sector shaped piezoelectric ceramics vibrators has been designed and fabricated. This type micro motor has advantages, such as a high-torque driving, a low-profile, lightweight and compact structure. The outer diameter of vibrator was 9.8 mm, the inner diameter was 5.2 mm, and the thickness was 0.8 mm. The vibrator´s 1^st longitudinal mode and 2^nd bending mode resonance frequency were about 360 kHz. The ultrasonic motor rotated 164 rpm under the condition of an applied voltage of 20 V_p__p.

Keywords

micromotors; piezoceramics; ultrasonic motors; bending mode resonance frequency; high-torque driving; in-wheel type microultrasonic motor; low-profile lightweight compact structure; piezoelectric ceramics; sector shaped piezoelectric vibrators; Ceramics; Micromotors; Modal analysis; Piezoelectric actuators; Power generation; Resonance; Resonant frequency; Robots; Rotors; Vibrations; Finite Element Method; Micro Motor; Piezoelectric Vibrator; Ultrasonic Motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced intelligent mechatronics, 2007 IEEE/ASME international conference on

Conference_Location

Zurich

Print_ISBN

978-1-4244-1263-1

Electronic_ISBN

978-1-4244-1264-8

Type

conf

DOI

10.1109/AIM.2007.4412536

Filename

4412536