Flutter Analysis of an Aircraft Wing Using Computational Fluid Dynamics

Autor: Kumar Sinha, Anjani, Ananda Kumar, Eriki, Johnrajan, A.
Zdroj: Applied Mechanics and Materials; April 2015, Vol. 754 Issue: 1 p817-827, 11p
Abstrakt: In today’s aviation world, the design of aircraft wing becomes a challenging one for aeronautical engineers, in order to meet the aero elastic phenomenon such as flutter, wing divergence in both aerodynamics and structural aspects. There are so many FEM packages available for both flow and structural analysis such as ANSYS, NASTRAN, ALGOR, NISA, ADINA, COSMOS, etc. The paper presents the application of computational aero-elasticity (CA) methods to analyze the wing in both aerodynamic and structural aspects, using ANSYS-FLOTRAN; 2-D typical aerofoil sections were analyzed and validated with experimental results. Also the vibration behavior of wing section is analyzed under MODAL, HARMONIC, TRANSIENT and SPECTRUM analysis under the aerodynamic lift force and moments. The support reaction forces and moments at the fuselage-wing intersection are developed in this research.
Databáze: Supplemental Index