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Unsteady and non-linear aeroelastic analysis of large horizontal-axis wind turbines
(Pergamon-Elsevier Science Ltd., 2014-01)
Analysis results, obtained from numerical simulation, for non-linear and unsteady aeroelastic behavior of large horizontal-axis wind turbines are presented in this paper. Simulations are carried out using a partitioned ...
Aeroelastic behavior of a wing with a magnetorheological hysteretic model to the damping
(2011)
This paper shows the application of a hysteretic model for the Magnetorheological Damper (MRD) placed in the plunge degree-of-freedom of aeroelastic model of a wing. This hysteretic MRD model was developed by the researchers ...
Insights on the unsteadiness and stall effects on the characteristics and responses of continuous wing-based systems
(2021-01-01)
The effects of the aerodynamic loads on continuous wing-based systems can be represented using a quasi-steady or a fully unsteady reduced-order modeling. Frequently, the quasi-steady formulation is used to model the ...
A co-simulation methodology to simulate the nonlinear aeroelastic behavior of a folding-wing concept in different flight configurations
(Springer, 2019-10)
A methodology to simulate the unsteady, nonlinear aeroelastic behavior of a folding-wing concept in multiple flight configurations is presented. It is based on a partitioned or co-simulation scheme, which divides the ...
Identification of unsteady aerodynamic loads using aeroelastic response and orthogonal functions
(2012-01-01)
The objective of this paper is the identification of aerodynamic parameters by the use of aeroelastic response using orthogonal functions. The unsteady aerodynamic forces acting on an aeroelastic system can calculated in ...
A reduced order state space model for aeroelastic analysis in time domain
(2017-02-01)
The objective of this paper is to describe a new method for modeling aeroelastic system in time domain based on a modification of the Laguerre Polynomials to represent complex quantities. These polynomials are used to ...
Influence of structural nonlinearities in stall-induced aeroelastic response of pitching airfoils
(European Assoc Structural Dynamics, 2014-01-01)
Stall-induced vibrations are a relevant aeroelastic problem for very flexible aero-structures. Helicopter blades, wind turbines, or other rotating components are severely inflicted to vibrate in stall condition during each ...
Influence of structural nonlinearities in stall-induced aeroelastic response of pitching airfoils
(2014-01-01)
Stall-induced vibrations are a relevant aeroelastic problem for very flexible aero-structures. Helicopter blades, wind turbines, or other rotating components are severely inflicted to vibrate in stall condition during each ...
Investigations on the interactions between structural and aerodynamic nonlinearities and unsteadiness for aeroelastic systems
(2022-01-01)
A nonlinear analysis is performed on a two-degree-of-freedom wing-based system. Structural nonlinearities are introduced in the pitch degree of freedom when considering two different forms of the aerodynamic loads. Comparisons ...
Impacts of stall and structural nonlinearities on the stability of aeroelastic systems
(2021-01-01)
The effects of stall, quadratic, and cubic nonlinearities in the pitch degree of freedom on the behavior of a two-degree of freedom aeroelastic system are investigated. The nonlinear governing equations of the considered ...