This paper describes an array of in-plane piezoelectric actuator segments laminated onto a corner-supported substrate to create a thin bimorph for reflector applications. An electric field distribution over the actuator segments causes the segments to expand or contract, thereby effecting plate deflection. To achieve a desired bimorph shape, the shape is first expressed as a two-dimensional series expansion. Then, using coefficients from the series expansion, an inverse problem is solved that determines the electric field distribution realizing the desired plate shape. A static example is presented where the desired deflection shape is a paraboloid.
Deflection Control of a Corner-Supported Plate Using Segmented In-Plane Actuators
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Sumali, H, Massad, JE, Chaplya, PM, & Martin, JW. "Deflection Control of a Corner-Supported Plate Using Segmented In-Plane Actuators." Proceedings of the ASME 2004 International Mechanical Engineering Congress and Exposition. Aerospace. Anaheim, California, USA. November 13–19, 2004. pp. 103-109. ASME. https://doi.org/10.1115/IMECE2004-61141
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