27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-9.10.1

UNIFIED AERODYNAMIC-ACOUSTIC FORMULATION FOR AERO-ACOUSTIC STRUCTURE COUPLING

H. Djojodihardjo, M. Akbar*, L. Gunawan*, M. Kusni*
Univ. Putra, Malaysia; *Institute of Technology Bandung, Indonesia

Keywords: acousto-aeroelasticity, fluid structure interaction, active flutter control

Unified treatment of acousto-aeroelasticity problem capitalizes on structural dynamic and Helmholtz equation for acoustic pressure. Unified formulation of unsteady aerodynamics and acoustic terms leads to Helmholtz equation. Solution of aerodynamic equation leads to the use of lifting surface methods. Unified formulation allows solution of an eigenvalue matrix equation.

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