Results 51 to 60 of about 13,380 (209)

Joint Actuator and Sensor Fault Diagnosis in Wind Turbine Systems

Wind Energy, Volume 28, Issue 12, December 2025.
ABSTRACT This paper presents a fault diagnosis method for wind turbine systems that can simultaneously detect and estimate both actuator and sensor faults. Unlike previous studies that treat these faults separatelyand focus mainly on pitch angle‐related variables, our study recognizes the interdependence between actuator and sensor faults and expands ...
Evi Elisa Ambarita, Anniken Karlsen, Agus Hasan   +2 more
wiley   +1 more source

Investigating the route to flutter in a pitch-plunge airfoil with freeplay nonlinearity subjected to input flow fluctuations

MATEC Web of Conferences, 2018
Aeroelastic systems with freeplay nonlinearity can exhibit a wide variety of qualitatively different dynamical responses such as limit cycle oscillations and chaos in the pre-flutter regimes.
Magu Raam Prasaad R, Venkatramani J
doaj   +1 more source

Dynamic Performance of Advanced Composite Towers in Offshore Wind Farms: Experimental and Numerical Investigation

Wind Energy, Volume 28, Issue 12, December 2025.
ABSTRACT Conventional steel towers face challenges such as insufficient stiffness and structural instability, making them increasingly unsuitable for supporting large multi‐megawatt wind turbines. This study investigates the dynamic performance of concrete‐filled double‐skin steel tubular (CFDST) wind turbine towers as a novel structural member ...
Xiaogang Jia, Kuangmin Gong, Kaiyuan Liu, Shiping Lan   +3 more
wiley   +1 more source

Wind Turbine Aeroelastic Stability in OpenFAST

Journal of Physics: Conference Series
Wind turbines are growing in size and increasingly suffer from aeroelastic instabilities. Unfortunately, numerical models often show inconsistent results during verification studies. We address this gap by first introducing novel linearization capabilities within the open-source aero-hydro-servo-elastic framework OpenFAST.
Bortolotti, Pietro, Chetan, Mayank, Branlard, Emmanuel, Jonkman, Jason, Platt, Andy, Slaughter, Derek, Rinker, Jennifer   +6 more
openaire   +3 more sources

An Aeroelastic Solution Method Using an Implicit Dynamic Approach

Aerospace
This paper presents an innovative aeroelastic solution method called the implicit dynamic approach (IDA). The IDA is a novel technique implemented to address the complexities of structural displacement and fluid–structure interactions.
Weiji Wang, Wei Qian, Zheng Chen, Xinyu Ai   +3 more
doaj   +1 more source

How Structural Model Variability Influences Transonic Aeroelastic Stability

Journal of Aircraft, 2010
This paper considers the ways in which structural model parameter variability can influence aeroelastic stability. Previous work on formulating the stability calculation (with the Euler equations providing the aerodynamic predictions) is exploited to use Monte Carlo, interval, and perturbation calculations to allow this question to be investigated ...
Simao Marques, Ken Badcock, Hamed Khodaparast, John Mottershead   +3 more
openaire   +3 more sources

Accelerating Vortex Particle Methods by Downsampling the Vorticity Field Representation

International Journal for Numerical Methods in Fluids, Volume 97, Issue 11, Page 1410-1425, November 2025.
This paper presents two downsampling algorithms for vortex particle methods (VPMs) that reduce the number of computational elements representing the vorticity field. The two methods demonstrate significant reductions in particle count and computation time in benchmark cases at a cost of diffusive errors.
Jakub Siemaszko, Rention Pasolari, Alexander van Zuijlen   +2 more
wiley   +1 more source

Evaluating Different Approaches for Modelling Rotor Aero‐Servo‐Dynamics in Frequency‐Domain Analysis of Floating Wind Turbines

Wind Energy, Volume 28, Issue 11, November 2025.
ABSTRACT Computationally efficient frequency‐domain models can play a very important role in facilitating conceptual design optimization of floating wind turbines (FWTs). However, achieving sufficient accuracy in such models is challenging due to the nonlinear variation of the aerodynamic loads, particularly the interaction between the floating ...
Serag‐Eldin Abdelmoteleb, Erin E. Bachynski‐Polić   +1 more
wiley   +1 more source

Optimal mistuning for enhanced aeroelastic stability of transonic fans [PDF]

, 1983
An inverse design procedure was developed for the design of a mistuned rotor. The design requirements are that the stability margin of the eigenvalues of the aeroelastic system be greater than or equal to some minimum stability margin, and that the mass ...
Crawley, E. F., Hall, K. C.
core   +1 more source

Dynamic Stall Characteristics of Thick Wind Turbine Airfoils

Wind Energy, Volume 28, Issue 11, November 2025.
ABSTRACT This paper studies the dynamic stall characteristics of thick flatback and nonflatback wind turbine airfoils. Two airfoils with a maximum thickness of 35%$$ 35\% $$ were studied, with trailing edge thicknesses of 2%$$ 2\% $$ and 10%$$ 10\% $$, respectively.
Mehdi Doosttalab, Carlos Simao Ferreira, Daniele Ragni, Wei Yu, Christof Rautmann   +4 more
wiley   +1 more source