Actuation strain decoupling through enhanced directional attachment in plates and aerodynamic surfaces

Ron Barrett

doi:10.1117/12.2298104

1 May 1992 Actuation strain decoupling through enhanced directional attachment in plates and aerodynamic surfaces

Ron Barrett

Proceedings Volume 1777, First European Conference on Smart Structures and Materials; 177729 (1992) https://doi.org/10.1117/12.2298104
Event: First European Conference on Smart Structures and Materials, 1992, Glasgow, United Kingdom

Abstract

Three methods of decoupling and one method of increasing actuator strain throughenhanced directional attachment (EDA) are presented. Directionally attached piezoelectric(DAP) elements are laminated to an uncoupled plate to generate 44Ã‚Â°/m in bending without twistand 31Ã‚Â°/m of twist without bending. The strains are enhanced 5 to 12% when the elements aretransversely stiffened. Analytical EDAP models are presented with experiment and theory inclose agreement. A comparison of EDA to current laminating techniques demonstrates 50 to 1000%higher strain rates in twist. Data from a wing using EDAP elements is also briefly summarized.

Citation Download Citation

Ron Barrett "Actuation strain decoupling through enhanced directional attachment in plates and aerodynamic surfaces", Proc. SPIE 1777, First European Conference on Smart Structures and Materials, 177729 (1 May 1992); https://doi.org/10.1117/12.2298104

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