In this work a study of the dynamic performance of a liquid-vapor phase change actuator is presented. The actuator consists of a cavity filled with a two phase fluid bounded by a thin membrane into which heat is added and a cover slip which is displaced by the expansion of the vapor. An experimental actuator was designed so that a parametric study of geometry and operation parameters could be conducted. A lumped parameter model of the system was developed to predict forces and displacements produced by the addition of heat. The input to the model is the heat and the output is the displacement of the actuator. FFT analysis of the actuator deflection and heat input are performed. This procedure allows the measurement of the transfer function between actuator displacement as output and heat as input over a frequency range of 10 to 500 Hz. These data are compared to the predictions of the lumped parameter model. Agreement is favorable.
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ASME 2007 International Mechanical Engineering Congress and Exposition
November 11–15, 2007
Seattle, Washington, USA
Conference Sponsors:
- ASME
ISBN:
0-7918-4305-X
PROCEEDINGS PAPER
Characterization and Modeling of the Dynamic Behavior of a Liquid-Vapor Phase Change Actuator
H. Bardaweel,
H. Bardaweel
Washington State University, Pullman, WA
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R. Richards,
R. Richards
Washington State University, Pullman, WA
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L. Weiss,
L. Weiss
Washington State University, Pullman, WA
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C. Richards,
C. Richards
Washington State University, Pullman, WA
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M. Anderson
M. Anderson
University of Idaho, Moscow, ID
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H. Bardaweel
Washington State University, Pullman, WA
R. Richards
Washington State University, Pullman, WA
L. Weiss
Washington State University, Pullman, WA
C. Richards
Washington State University, Pullman, WA
M. Anderson
University of Idaho, Moscow, ID
Paper No:
IMECE2007-42567, pp. 193-199; 7 pages
Published Online:
May 22, 2009
Citation
Bardaweel, H, Richards, R, Weiss, L, Richards, C, & Anderson, M. "Characterization and Modeling of the Dynamic Behavior of a Liquid-Vapor Phase Change Actuator." Proceedings of the ASME 2007 International Mechanical Engineering Congress and Exposition. Volume 11: Micro and Nano Systems, Parts A and B. Seattle, Washington, USA. November 11–15, 2007. pp. 193-199. ASME. https://doi.org/10.1115/IMECE2007-42567
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