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Proceedings Paper

High-frequency valve development for smart material electro-hydraulic actuators
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Paper Abstract

This paper presents two approaches to developing improved check valves for high frequency fluid rectification in a smart material electro-hydraulic actuator: a single reed-type design and an array of miniaturized valves. The multiphysics software COMSOL was used to study the 3-D fluid-structure interaction between the valve and hydraulic fluid during pump operation, and the results were validated utilizing an instrumented valve to measure in-situ tip displacement. The added mass effect of the fluid on the valve was experimentally characterized. To improve the frequency response of the valves, an array of miniature reed valves were designed for the high frequency and high pressure environment in the pump. A fabrication method was developed for the miniaturized valves utilizing micromachining processes. The performance of the two types of valves was compared through static and dynamic experiments.

Paper Details

Date Published: 28 April 2011
PDF: 10 pages
Proc. SPIE 7979, Industrial and Commercial Applications of Smart Structures Technologies 2011, 79790E (28 April 2011); doi: 10.1117/12.881958
Show Author Affiliations
John P. Larson, The Ohio State Univ. (United States)
Marcelo J. Dapino, The Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 7979:
Industrial and Commercial Applications of Smart Structures Technologies 2011
Kevin M. Farinholt; Steve F. Griffin, Editor(s)

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