Primary resonance excitation of electrically actuated clamped circular plates |
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Authors: | Gregory W. Vogl Ali H. Nayfeh |
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Affiliation: | (1) Department of Engineering Science and Mechanics, MC 0219, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA |
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Abstract: | We investigate the response of an electrically actuated clamped circular plate to a primary resonance excitation of its first axisymmetric mode using an analytical reduced-order model (macromodel). We discuss the inf luence of the number of modes retained in the discretization on the predicted solutions. The reduced-order model, which is a system of coupled nonlinear ordinary-dif ferential equations, accounts for general residual stress and strain hardening and allows for general material and geometric design variables. Our reduced-order model is robust up to the pull-in instability and is general enough to be an ef fective design tool for capacitive micromachined ultrasonic transducers. |
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Keywords: | CMUT Electrostatic actuation Macromodel { Pull-in Reduced-order model |
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