Dynamic properties of an omni-directional piezoelectric motor for precision position control

Woo S. Jung, Chong-Yun Kang, Dong S. Paik, Piotr E. Vasiljev, Jeong D. Kim, Seok J. Yoon

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A piezoelectric motor capable of omni-directional movements has been developed to apply for robot joints, eyes, and precision positioning stage. The piezoelectric actuator has a simple structure of a cone type consisting of two piezoelectric ring-typed ceramics with electrodes divided into four segments and stainless steel elastic bodies. Before manufacturing the piezoelectric motor, the admittance characteristics and displacements of the actuator as a function of frequency were simulated. Elliptical motions of the actuator were created at several frequencies between the longitudinal and transverse resonance frequencies. The actual motor with alumina ball exhibited nice performance using a driving circuit with two rotary encoders and a PID controller. The moving element was omni-directionally operated at a driving frequency of 53.8 kHz and an output voltage of 280 Vp-p. The developed motor enables the moving element to move to a desired position with a resolution of 1.2°/pulse, an angular velocity of 4 rad/s, and a thrust force of 200 g.

Original languageEnglish
Pages (from-to)594-598
Number of pages5
JournalUltrasonics
Volume49
Issue number6-7
DOIs
Publication statusPublished - 2009 Jun 1

Fingerprint

piezoelectric motors
dynamic characteristics
actuators
elastic bodies
piezoelectric actuators
coders
angular velocity
electrical impedance
robots
thrust
positioning
balls
stainless steels
controllers
cones
manufacturing
aluminum oxides
steels
ceramics
electrodes

Keywords

  • Admittance characteristic
  • Omni-directional
  • PID control
  • Piezoelectric actuator

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Jung, W. S., Kang, C-Y., Paik, D. S., Vasiljev, P. E., Kim, J. D., & Yoon, S. J. (2009). Dynamic properties of an omni-directional piezoelectric motor for precision position control. Ultrasonics, 49(6-7), 594-598. https://doi.org/10.1016/j.ultras.2009.03.002

Dynamic properties of an omni-directional piezoelectric motor for precision position control. / Jung, Woo S.; Kang, Chong-Yun; Paik, Dong S.; Vasiljev, Piotr E.; Kim, Jeong D.; Yoon, Seok J.

In: Ultrasonics, Vol. 49, No. 6-7, 01.06.2009, p. 594-598.

Research output: Contribution to journalArticle

Jung, WS, Kang, C-Y, Paik, DS, Vasiljev, PE, Kim, JD & Yoon, SJ 2009, 'Dynamic properties of an omni-directional piezoelectric motor for precision position control', Ultrasonics, vol. 49, no. 6-7, pp. 594-598. https://doi.org/10.1016/j.ultras.2009.03.002
Jung, Woo S. ; Kang, Chong-Yun ; Paik, Dong S. ; Vasiljev, Piotr E. ; Kim, Jeong D. ; Yoon, Seok J. / Dynamic properties of an omni-directional piezoelectric motor for precision position control. In: Ultrasonics. 2009 ; Vol. 49, No. 6-7. pp. 594-598.
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