Structural design and analyses of a fabric-covered wind turbine blade

Choi, Dong-Guk; Kwak, Chan-Ho; Lee, Soo-Yong; Bae, Jong‐Sup; Lee, Hak-Gu

doi:10.1080/09243046.2019.1626187

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…They predicted a reduction in blade weight of over 30%, although their research was preliminary. Choi et al [11] designed and analyzed a fabric-covered wind turbine blade structure. The authors performed static structural analysis and buckling analysis, and they proposed a spar structure for a fabric-covered blade.…”

Section: Introductionmentioning

confidence: 99%

Structural Design, Analysis, and Testing of a 10 kW Fabric-Covered Wind Turbine Blade

et al. 2020

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Reducing the weight of a wind turbine blade is a major issue. Wind turbines have become larger in size to increase power generating efficiency. The blade has also grown in length to take more wind energy. A fabric-based wind turbine blade, introduced by General Electric Co., reduced the blade weight. In this study, a small fabric-covered blade for a 10 kW wind turbine was developed to verify structural ability. The blade was designed on the cross-section using variational asymptotic beam sectional analysis (VABS), structural analysis was carried out using MSC.Nastran for the design loads. A modal analysis was performed to compare the modal frequency and mode shapes. Static structural testing and modal testing were fulfilled. The analysis results were compared with the testing results. The fabric-covered structure was confirmed to reduce the blade mass with sufficient strength.

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Section: Introductionmentioning

confidence: 99%

Structural Design, Analysis, and Testing of a 10 kW Fabric-Covered Wind Turbine Blade

et al. 2020

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“…This section gives a very brief review of the research history from the current state of art 5 MW machine towards the more challenging design of a 50 MW machine. The 5 MW reference wind turbine has been widely studied from rotor aerodynamic and structure design aspects (Buck and Garvey, 2015;Borouji and Nishino, 2019;Choi et al, 2019). As proposed in (Buck and Garvey, 2015), replacing the blades of a 5 MW wind turbine by a low induction rotor leaded to a reduction in capital cost per unit of annual energy production of over 2%.…”

Section: Current Status In Wind Turbine Rotor Designmentioning

confidence: 99%

Editorial: Towards Innovation in Next Generation of Wind Turbine Rotor Design

2021

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“…In the recent years there has been increasing interest by the scientific community in the structural design behavior of wind turbines. Most of these studies focused on the structural design behavior (static and dynamic) either of the rotor blades [25][26][27] or of the single blades, which are independent of the rest of the structure [28][29][30]. On the other hand, many researchers in the wind energy have been interested in the response of the tower structure subjected to several dynamic loadings [31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Numerical modal analysis of a 850 KW wind turbine steel tower

Ferroudji

2021

IRASE

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The study deals with the numerical analysis aspects that are necessary for identifying of modal parameters of the tower structure as the most important part of the horizontal axis wind turbine, which are basic for the dynamic response analysis. In the present study, the modal behavior of an actual 55-m-high steel tower of 850 KW wind turbine (GAMESA G52/850 model) is investigated by using three-dimensional (3D) Finite Element (FE) method. The model was used to identify natural frequencies, their corresponding mode shapes and mass participation ratios, and the suggestions to avoid resonance for tower structure under the action wind. The results indicate that there is a very good agreement with the fundamental vibration theory of Euler-Bernoulli beam with lamped masse in bending vibration modes. When the rotor of the wind turbine runs at the speed of less than or equal to 25.9 rpm it will not have resonant problems (stiff–stiff tower design). Furthermore, in case the rotor runs at the speed of between 25.9 and 30.8 rpm, the adequate controller is necessary in order to avoid the corresponding resonant susceptible area of the tower structure (soft–stiff tower design).

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Structural design and analyses of a fabric-covered wind turbine blade

Cited by 5 publications

References 17 publications

Structural Design, Analysis, and Testing of a 10 kW Fabric-Covered Wind Turbine Blade

Structural Design, Analysis, and Testing of a 10 kW Fabric-Covered Wind Turbine Blade

Editorial: Towards Innovation in Next Generation of Wind Turbine Rotor Design

Numerical modal analysis of a 850 KW wind turbine steel tower

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