A refined 1D FE model for the application to aeroelasticity of composite wings

Cita com:
hdl:2117/327364
Document typeConference report
Defense date2011
PublisherCIMNE
Rights accessOpen Access
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Abstract
The extension of a hierarchical one-dimensional structural model to aeroelasticity
is the subject of the present paper. The aerodynamic model is based on the Vortex
Lattice Method, VLM, whereas the refined 1D model is based on the Carrera Unified Formulation,
CUF. Airfoil in-plane deformation and warping are introduced by enriching the
displacement field over the cross-section of the wing. Linear to fourth-order expansions
are adopted and classical beam theories (Euler-Bernoulli and Timoshenko) are obtained
as particular cases. The VLM aerodynamic theory is coupled with the structural finite
element model via an appropriate adaptation of the Infinite Plate Spline method. The
aeroelastic tailoring is investigated for several wing configurations (by varying aspect ratio,
airfoil geometry and sweep angle) and an excellent agreement with MD NASTRAN
solution is provided for structural and aeroelastic cases. The effectiveness of higher-order
models for an accurate evaluation of aeroelastic response of isotropic and composite wings
is shown.
CitationVarello, A.; Petrolo, M.; Carrera, E. A refined 1D FE model for the application to aeroelasticity of composite wings. A: COUPLED IV. "COUPLED IV : proceedings of the IV International Conference on Computational Methods for Coupled Problems in Science and Engineering". CIMNE, 2011, p. 623-634. ISBN 978-84-89925-78-6.
ISBN978-84-89925-78-6
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