Finite Element Model Updating of a Wind Turbine Blade—A Comparative Study

2018 ◽  
pp. 569-580
Author(s):  
Marlene Bruns ◽  
Benedikt Hofmeister ◽  
Dorian Pache ◽  
Raimund Rolfes
Keyword(s):  
Finite Element ◽  
Comparative Study ◽  
Finite Element Model ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Model Updating ◽  
Element Model ◽  
Wind Turbine Blade ◽  
Finite Element Model Updating

Load application method for shell finite element model of wind turbine blade

2018 ◽  
Vol 42 (5) ◽  
pp. 467-482 ◽  
Author(s):  
Damien Caous ◽  
Nicolas Lavauzelle ◽  
Julien Valette ◽  
Jean-Christophe Wahl
Keyword(s):  
Finite Element ◽  
Structural Analysis ◽  
Finite Element Model ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Element Model ◽  
Wind Turbine Blade ◽  
Detailed Structural Analysis ◽  
Body Load ◽  
Shell Finite Element

It is common to dissociate load computation from structural analysis when carrying out a numerical assessment of a wind turbine blade. Loads are usually computed using a multiphysics and multibody beam finite element model of the whole turbine, whereas detailed structural analysis is managed using shell finite element models. This raises the issue of the application of the loads extracted from the beam finite element model at one node for each section and transposed into the shell finite element model. After presenting the methods found in the literature, a new method is proposed. This takes into account the physical consistency of loads: aerodynamic loads are applied as pressure on the blade surface, and inertial loads are applied as body loads. Corrections imposed by pressure and body load computation in order to match loads from the beam finite element model are proposed and a comparison with two other methods is discussed.

scholarly journals Updating Finite Element Model of a Wind Turbine Blade Section Using Experimental Modal Analysis Results

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Marcin Luczak ◽  
Simone Manzato ◽  
Bart Peeters ◽  
Kim Branner ◽  
Peter Berring ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Numerical Study ◽  
Element Model ◽  
Full Scale ◽  
Wind Turbine Blade ◽  
Model Parameters ◽  
Blade Section

This paper presents selected results and aspects of the multidisciplinary and interdisciplinary research oriented for the experimental and numerical study of the structural dynamics of a bend-twist coupled full scale section of a wind turbine blade structure. The main goal of the conducted research is to validate finite element model of the modified wind turbine blade section mounted in the flexible support structure accordingly to the experimental results. Bend-twist coupling was implemented by adding angled unidirectional layers on the suction and pressure side of the blade. Dynamic test and simulations were performed on a section of a full scale wind turbine blade provided by Vestas Wind Systems A/S. The numerical results are compared to the experimental measurements and the discrepancies are assessed by natural frequency difference and modal assurance criterion. Based on sensitivity analysis, set of model parameters was selected for the model updating process. Design of experiment and response surface method was implemented to find values of model parameters yielding results closest to the experimental. The updated finite element model is producing results more consistent with the measurement outcomes.

Operational Modal Analysis and Finite-Element Model Updating of Pilot Concrete Wind Turbine Tower

2019 ◽  
Vol 145 (2) ◽  
pp. 05018003
Author(s):  
Edilson Alexandre Camargo ◽  
Jens Peder Ulfkjaer ◽  
Rune Brincker ◽  
Jens Nøergaard ◽  
Simon Steen Gadegaard
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Wind Turbine ◽  
Modal Analysis ◽  
Model Updating ◽  
Element Model ◽  
Operational Modal Analysis ◽  
Finite Element Model Updating ◽  
Wind Turbine Tower
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