Vibration Analysis of Different Airfoils of Aircraft Wing

Abstract

Many studies are being carried out for the design of the wings across the globe by the researchers to strengthen the aircraft wings for steady and sturdy structures for dynamic conditions. The wing design involves its initial considerations and selection of airfoil profile, area of the wing, wing loading characteristics, material and weight of the wing. For initial work, airfoil profile NACA 4424 was selected as root as well as the tip of the wing. This profile along with some specific dimensions was used to design a 3D model in the CAD software SOLIDWORKS 2016. Modal analysis was carried out to find the natural frequencies and mode shapes of the wing using a simulation software COMSOL Multiphysics 5.4 by putting specific boundary conditions and the material properties. A practical model of the wing identical to the simulated 3D model was made using the material Balsa Wood. After experiment using eddy current displacement sensor, similar results were found for the 1st natural frequency which did the validation our work. Further, 3D modeling of aircraft wing and modal analysis were done using various airfoil profile like NACA 2410, NACA 4412, NACA 16-015 and NACA 633-015 for design variations like solid model, without ribs and with ribs using the same methodology. These results were compared with one another for determining the best designs of aircrafts for different purposes under different conditions.