Position control of a cylinder system using piezoactuator-driven pumps

Seung-Bok Choi; Joong-Kyu K. Yoo; Myoung-Soo Cho

doi:10.1117/12.474685

15 July 2002 Position control of a cylinder system using piezoactuator-driven pumps

Seung-Bok Choi, Joong-Kyu K. Yoo, Myoung-Soo Cho

Proceedings Volume 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems; (2002) https://doi.org/10.1117/12.474685
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

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.

Citation Download Citation

Seung-Bok Choi, Joong-Kyu K. Yoo, and Myoung-Soo Cho "Position control of a cylinder system using piezoactuator-driven pumps", Proc. SPIE 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems, (15 July 2002); https://doi.org/10.1117/12.474685

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