Finite Wings
Finite Wings
- Neue Suche nach: Dimitriadis, Grigorios
- Neue Suche nach: Dimitriadis, Grigorios
This chapter explains the modelling of a simple 3D cantilever flat with two types of aerodynamic modelling, supersonic quasi‐steady strip theory and incompressible unsteady 3D Vortex Lattice. The wing is modelled as flat, the upwash is written in terms of the modal coordinates and the generalised aerodynamic force matrix is formulated in the frequency domain and evaluated for distinct reduced frequencies. The nonlinearities that can be implemented in such models can be structural or control‐related. Complete aeroservoelastic models can be set up using realistic linear or nonlinear control laws and even freeplay in the control surface actuators. Freeplay can be introduced in modal‐based aeroelastic models using a fictitious mass approach or an augmented modal basis technique. Even dynamic stall modelling can be coupled with 3D nonlinear structural models, integrating the Leishmann‐Beddoes or ONERA models in the spanwise direction using strip theory.
Dokumentinformationen
Finite Wings
Introduction to Nonlinear Aeroelasticity ; 503-553
2017-03-28
51 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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