A novel approach to control the shape change of a reconfigurable wing using shape memory alloy

Abstract

Engineers and Technologists have found several approaches to control the shape of an aerofoil and improve the performance of a wing at different flow regimes; this research has been done at 2D level. In this work, a novel approach has been developed. The inspiration for this work comes from biological research. A 3D wing body has been modeled and flow conditions around it were simulated by advanced computer technology. The fabrication of the wing, based on the design optimization model, has been conducted using rapid prototyping technology. The unique thermal and mechanical properties that are exhibited by shape memory alloys (SMAs) have presented an exciting design possibility in the field of aerospace engineering. This kind of smart material was incorporated in the wing structure and when activated can alter the shape of the wing, thus effectively increasing the efficiency of a wing in flight, at several different flow regimes.