DocumentCode :
25177
Title :
Design, Fabrication, and Evaluation of Stepper Motors Based on the Piezoelectric Torsional Actuator
Author :
Byung-Woo Kang ; Jaehwan Kim
Author_Institution :
Samsung Electro-Mech. Co. Ltd., Suwon, South Korea
Volume :
18
Issue :
6
fYear :
2013
fDate :
Dec. 2013
Firstpage :
1850
Lastpage :
1854
Abstract :
This paper deals with the newly developed piezoelectric stepper motors that generate the precise stepping motion using a piezoelectric torsional actuator and a pair of one-way roller clutches. The torsional actuator consists of piezoelectric segments that produce the angular motion associated with its shear mode of piezoelectric ceramics, d15. A pair of one-way roller clutches converts the angular motion of the torsional actuator into continuous stepping rotation with a driving shaft. Because the piezoelectric torsional actuator functions as the driving source at high frequency, a precise step motion can be produced without any conversion mechanism of stepping rotation. In this paper, two types of torsional stepper motors are designed and fabricated. In the design stage, the shear resonance mode of the piezoelectric actuator is analyzed by using a finite-element analysis, and rotation speed and torque measurement are performed. Also, possibility of achieving higher rotation speed using a torsion bar is addressed. Once the proposed piezoelectric stepping motor is miniaturized, it can be used for many compact and precision motion applications.
Keywords :
finite element analysis; piezoelectric actuators; precision engineering; stepping motors; angular motion; continuous stepping rotation; conversion mechanism; driving shaft; finite element analysis; one-way roller clutches; piezoelectric ceramics; piezoelectric segments; piezoelectric stepper motors; piezoelectric stepping motor; piezoelectric torsional actuator functions; precise stepping motion; shear resonance mode; torque measurement; torsion bar; torsional stepper motors; Actuators; Motors; Piezoelectric devices; Prototypes; Torque; Actuators; piezoelectric devices; stepper motors;
fLanguage :
English
Journal_Title :
Mechatronics, IEEE/ASME Transactions on
Publisher :
ieee
ISSN :
1083-4435
Type :
jour
DOI :
10.1109/TMECH.2013.2269171
Filename :
6553282
Link To Document :
بازگشت