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Flutter Analysis of an Aerofoil Using State-Space Unsteady Aerodynamic Modeling

  • Riccy Kurniawan
Conference paper

Abstract

This paper deals with the problem of the aeroelastic stability of a typical airfoil section with two-degree of freedom induced by the unsteady aerodynamic loads. A method is presented to model the unsteady lift and pitching moment acting on a two-dimensional typical aerofoil section, operating under attached flow conditions in an incompressible flow. Starting from suitable generalisations and approximations to aerodynamic indicial functions, the unsteady loads due to an arbitrary forcing are represented in a state-space form. From the resulting equations of motion, the flutter speed is computed through stability analysis of a linear state-space system.

Keywords

Aeroelasticity Aerodynamics Aerofoil Dynamics Flutter Incompressible Modeling Stability State-space Unsteady 

References

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringAtma Jaya Catholic University of IndonesiaJakartaIndonesia

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