Mechanization of a High Aspect Ratio Wing for Aerodynamic Control

• Published in: Journal of intelligent material systems and structures Vol. 19; no. 9; pp. 1101 - 1112
• Main Authors: Frank, Geoffrey J., Joo, James J., Sanders, Brian, Garner, David M., Murray, Andrew P.
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01-09-2008; Technomic
• Subjects: Exact sciences and technology; Fundamental areas of phenomenology (including applications); Physics; Solid mechanics; Static elasticity (thermoelasticity...); Structural and continuum mechanics; adaptive wing; mechanism design; morphing aircraft; compliant mechanism; sensorcraft; Rigid bodies; Compliant mechanism; Geometrical shape; Wing; Variable geometry; Aerodynamics; Aspect ratio; Geometrical model; Optimization; Weight; Mechanism synthesis; Kinematics; Fluidic control; Aerofoil; Aircraft; Curvature
• ISSN: 1045-389X; 1530-8138
• DOI: 10.1177/1045389X08096734

Investigations are conducted to mechanize a controlled spanwise-varying airfoil camber change for a high aspect ratio wing, resulting in optimized aerodynamic performance for a aircraft that changes weight by 50% over its mission. Mechanisms to achieve these shape changes are designed based on two separate design methodologies: a rigid body kinematics approach and a compliant mechanism approach. A framework for optimizing mechanisms based on each approach is presented. Differences between the approaches are illustrated through the design of a mechanism for a specific set of airfoil shapes. Mechanisms are evaluated based on the error in the shapes and on the energy efficiency of the systems.