8 September 1993 Active tailoring of adaptive lifting surfaces for aeroelastic applications
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Abstract
This paper discusses the development and use of an effective finite element analysis procedure to examine integrated anisotropic piezoelectric actuators for aeroelastic applications where it is essential that torsion and bending be controlled independently of one another. The finite element model consists of three-dimensional isoparametric solid elements (bricks) that allow modeling of tailored piezoelectrics with skewed actuator/sensor axes. This scheme also allows the representation of an anisotropic host structure and can account for material and stacking geometry through the element thickness. Using this finite element representation, it is shown that anisotropic piezoelectric actuators can create sufficient twisting and bending to control aerodynamic loads on a wing, although aerodynamic loads are not included in this discussion.
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M. N. Abdul-Wahed, M. N. Abdul-Wahed, Terrence A. Weisshaar, Terrence A. Weisshaar, } "Active tailoring of adaptive lifting surfaces for aeroelastic applications", Proc. SPIE 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems, (8 September 1993); doi: 10.1117/12.152807; https://doi.org/10.1117/12.152807
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