Wind-tunnel experimental study on aeroelastic response of flexible wind turbine blades under different wind conditions

R Gao, J Yang, H Yang, X Wang - Renewable Energy, 2023 - Elsevier
The long and flexible blades of the offshore wind turbine are easily damaged during extreme
wind conditions (eg typhoons or tornados). For this reason, a continuous aeroelastic model …

Shape optimization of low speed wind turbine blades using flexible multibody approach

AA Nada, AS Al-Shahrani - Energy Procedia, 2017 - Elsevier
It is proposed that the small-size wind turbines can demonstrate the innovative solution for
the wind energy conversion for low speed regions. An innovative design, control, and …

[HTML][HTML] Joint parameters for strain-based geometrically nonlinear beam formulation: Multibody analysis and experiment

K Otsuka, S Dong, K Fujita, H Nagai… - Journal of Sound and …, 2022 - Elsevier
A novel singularity-free, tuning-free, and reduced-order strain-based beam formulation is
developed for analyzing slender multibody systems such as folding wing aircraft and …

Computational Design Scheme for Wind Turbine Drive‐Train Based on Lagrange Multipliers

M Saleh, A Nada, A El-Betar, A El-Assal - Journal of Energy, 2017 - Wiley Online Library
The design optimization of wind turbines and their subsystems will make them competitive
as an ideal alternative for energy. This paper proposed a design procedure for one of these …

Floating Frame of Reference formulation for modeling flexible multi-body systems in premise operational conditions

A Nada, A Bishiri - Journal of Vibration and Control, 2019 - journals.sagepub.com
The Floating Frame of Reference (FFR) formulation is a well-established and reliable
method for modeling flexible multi-body systems. The FFR formulation has been adopted for …

Use of mixed coordinates in modeling wind turbines including tubular tower

A Nada, A Al-Shahrani - Mechanical Sciences, 2019 - ms.copernicus.org
This paper studies the effect of the tower dynamics upon the wind turbine model by using
mixed sets of rigid and/or nodal and/or modal coordinates within multibody system dynamics …

Innovative and cost effective design of small-size micro wind turbines for low-speed regions, suitable for use in Egyptian villages

MKAH Mostafa, MKMM Ali - The International Undergraduate …, 2022 - iugrc.journals.ekb.eg
Wind energy has proven to be an important source of clean and renewable energy. In order
to take advantage of wind turbines, the design of aerodynamic-efficient blade is required not …

Effectiveness of Using Mixed Coordinates in Modeling Wind Turbines

AA Nada, AS Al-Shahrani - ASME …, 2018 - asmedigitalcollection.asme.org
This paper presents the effectiveness of using mixed, nodal and/or modal coordinates in
modeling wind turbines. The paper shows that the nodal model exhibits excellent numerical …