Author : G. Naveen Kumar, G. Bharath Reddy and K. ChandraShekar

Aerodynamics is the study of the interaction between stationary objects and moving air. The main purpose of aerofoil is to generate lift force or down force depending upon the application. National Advisory Committee For Aeronautics (NACA) is a standard board concerned with aerofoil’s for all aerospace applications such as aircraft body, aircraft wing and also for automobile components such as car body design, spoiler etc. These components need to be made of materials having less density, high fatigue strength, corrosion degradation. The composites with sandwich construction are suitable for the above requirements. The present work deals with implementation of composite material for automobile rear spoiler. To design aerofoil component it require a number of coordinates and it’s a challenging task. The Design Foil software provides different aerofoil profiles from which NACA 0018 is selected. As composite materials are orthotropic materials, and its properties depends upon many factors such as fiber orientation, type of matrix and fiber etc. Laminate Theory Software is used to extract the properties of composite material (under different fiber orientations. The spoiler is modeled using Solid Works software and is analyzed for the static and dynamic conditions using ANSYS software. Then results extracted from software are analyzed for its compact ability and finally best orientation of fiber is predicted.

Keywords: NACA, Spoiler, Design Foil, Laminate Theory Software

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)