Nonlinear Aeroelastic Analysis of Highly Flexible Wings Using the Modal Rotation Method

AIAA Journal ◽  
2021 ◽  
pp. 1-13
Author(s):  
Ariel Drachinsky ◽  
Daniella E. Raveh
Keyword(s):  
Flexible Wings ◽  
Aeroelastic Analysis ◽  
Rotation Method

A Reduced Order Model for the Aeroelastic Analysis of Flexible Wings

2013 ◽  
Vol 6 (2) ◽  
pp. 447-458 ◽  
Author(s):  
Enrico Cestino ◽  
Giacomo Frulla ◽  
Piergiovanni Marzocca
Keyword(s):  
Reduced Order Model ◽  
Order Model ◽  
Flexible Wings ◽  
Reduced Order ◽  
Aeroelastic Analysis

scholarly journals A Hybrid Reduced-Order Model for the Aeroelastic Analysis of Flexible Subsonic Wings—A Parametric Assessment

Aerospace ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 76 ◽  
Author(s):  
Marco Berci ◽  
Rauno Cavallaro
Keyword(s):  
Structural Parameters ◽  
Equations Of Motion ◽  
Three Dimensional ◽  
Unsteady Aerodynamics ◽  
Reduced Order Model ◽  
Order Model ◽  
Flexible Wings ◽  
Reduced Order ◽  
Aeroelastic Analysis ◽  
Strip Theory

A hybrid reduced-order model for the aeroelastic analysis of flexible subsonic wings with arbitrary planform is presented within a generalised quasi-analytical formulation, where a slender beam is considered as the linear structural dynamics model. A modified strip theory is proposed for modelling the unsteady aerodynamics of the wing in incompressible flow, where thin aerofoil theory is corrected by a higher-fidelity model in order to account for three-dimensional effects on both distribution and deficiency of the sectional air load. Given a unit angle of attack, approximate expressions for the lift decay and build-up are then adopted within a linear framework, where the two effects are separately calculated and later combined. Finally, a modal approach is employed to write the generalised equations of motion in state-space form. Numerical results were obtained and critically discussed for the aeroelastic stability analysis of a uniform rectangular wing, with respect to the relevant aerodynamic and structural parameters. The proposed hybrid model provides sound theoretical insights and is well suited as an efficient parametric reduced-order aeroelastic tool for the preliminary multidisciplinary design and optimisation of flexible wings in the subsonic regime.

Aeroelastic analysis of a hingeless rotor blade in forward flight

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 843-850
Author(s):  
Seong M. Jeon ◽  
In Lee
Keyword(s):  
Rotor Blade ◽  
Forward Flight ◽  
Aeroelastic Analysis
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