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Proceedings Paper

Position control of a cylinder system using piezoactuator-driven pumps
Author(s): Seung-Bok Choi; Joong-Kyu K. Yoo; Myoung-Soo Cho
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Paper Abstract

This paper proposes a novel type of the piezoactuator-driven hydraulic pump(piezo pump in short) in order to control the position of a cylinder system. The piezo pump is operated by the dynamic motion of a diaphragm directly attached to the piezoactuator. The governing equation of the flow motion of the piezo pump id derived and an appropriate size of the piezo pump is designed and manufactured. The pressure drop and flow rate of the pump are experimentally evaluated at various voltages. The piezo pump is then incorporated with a single-rod cylinder system. A sliding mode controller is designed to achieve an accurate position control of the cylinder and practically realized. Position control performances for step and sinusoidal trajectories are evaluated and presented in time domain.

Paper Details

Date Published: 15 July 2002
PDF: 7 pages
Proc. SPIE 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems, (15 July 2002); doi: 10.1117/12.474685
Show Author Affiliations
Seung-Bok Choi, Inha Univ. (South Korea)
Joong-Kyu K. Yoo, Inha Univ. (South Korea)
Myoung-Soo Cho, Inha Univ. (North Korea)

Published in SPIE Proceedings Vol. 4701:
Smart Structures and Materials 2002: Smart Structures and Integrated Systems
L. Porter Davis, Editor(s)

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