A piezoelectric linear actuator formed from a multitude of bimorphs

Friend, J, Umeshima, A, Ishii, T, Nakamura, K and Ueha, S 2005, 'A piezoelectric linear actuator formed from a multitude of bimorphs', Sensors and Actuators A, vol. 109, no. 3, pp. 242-251.


Document type: Journal Article
Collection: Journal Articles

Title A piezoelectric linear actuator formed from a multitude of bimorphs
Author(s) Friend, J
Umeshima, A
Ishii, T
Nakamura, K
Ueha, S
Year 2005
Journal name Sensors and Actuators A
Volume number 109
Issue number 3
Start page 242
End page 251
Total pages 10
Publisher Elsevier S.A.
Abstract This paper describes the design, construction, and testing of a linear actuator using a multitude of cantilever bimorphs. Each beam is vibrated both in the fundamental axial mode and a high-order flexural mode using piezoelectric material with a specific electroding pattern to obtain both axial and flexural motion from each bimorph. Bidirectional linear sliding velocities and forces reached 27.7 cm/s and 0.09 N, respectively, from a single bimorph, while up to 17.6 cm/s velocity and 0.15 N in either direction, at approximately 1% efficiency, were obtained from an actuator composed of four closely-matched bimorphs
Subject Acoustics and Acoustical Devices; Waves
Keyword(s) Piezoelectric actuator
linear actuator
bimorph
ultrasonic actuator
DOI - identifier 10.1016/j.sna.2003.10.040
Copyright notice © 2003 Elsevier B.V. All rights reserved.
ISSN 0924-4247
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