Influence des Deformations Statiques d'une Voilure sur l'Aerodynamique Instationnaire (Influence of Static Deformation on a Wing in the Unsteady Aerodynamic),

Abstract

Modern civil transport airplanes, with large aspect ratio, like B767 or AIRBUS, show even in cruise condition important static deformations characterized essentially by an induced torsion due to the wing sweep angle. This deformation which is especially important at the wing tip, modifies the flow around a supercritical profile, very sensitive to the local incidence. The deformation influence on the flutter phenomenon was proved by wind tunnel tests on an elastic model. A series of flutter calculations using semi empirical corrections, extracted from wind tunnel tests, was undertaken to reduce the existing difference theory and experience.

Document Details

Document Type
Technical Report
Publication Date
Oct 03, 1986
Accession Number
ADP005861

Entities

People

  • Roger Destuynder

Organizations

  • Office National d'Études et de Recherches Aérospatiales

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Airplanes
  • Aspect Ratio
  • Fixed Wing Aircraft
  • Swept Wings
  • Transport Ships
  • Vehicles
  • Wind Tunnel Tests
  • Wind Tunnels
  • Wing Tips

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Materials Science and Engineering.
  • Small Business Innovation Research Program (SBIR) EDI Research and Innovation.