NDLI: Characterization and Modeling of the Dynamic Behavior of a Liquid-Vapor Phase Change Actuator

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Bardaweel, H. Richards, R. Weiss, L. Richards, C. Anderson, M.
Copyright Year	2007
Abstract	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.
Starting Page	193
Ending Page	199
Page Count	7
File Format	PDF
ISBN	079184305X
DOI	10.1115/IMECE2007-42567
e-ISBN	0791838129
Volume Number	Volume 11: Micro and Nano Systems, Parts A and B
Conference Proceedings	ASME 2007 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2007-11-11
Publisher Place	Seattle, Washington, USA
Access Restriction	Subscribed
Subject Keyword	Geometry Actuators Cavities Heat Fluids Membranes Lumped parameter models Deflection Transfer functions Vapors Modeling Displacement
Content Type	Text
Resource Type	Article

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