Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81355
Title: Structural analysis of large-scale vertical axis wind turbines part II : fatigue and ultimate strength analyses
Authors: Lin, JH 
Xu, YL 
Xia, Y 
Keywords: Vertical axis wind turbine
Fatigue analysis
Ultimate strength analysis
Laminated blade
Issue Date: 2019
Publisher: Molecular Diversity Preservation International (MDPI)
Source: Energies, 1 July 2019, v. 12, no. 13, 2584, p. 1-18 How to cite?
Journal: Energies 
Abstract: Vertical axis wind turbines (VAWTs) exhibit many advantages and great application prospect as compared with horizontal ones. However, large-scale VAWTs are rarely reported, and the codes and guidelines for designing large-scale VAWTs are lacking. Designing a large-scale composite blade requires precise finite element (FE) modeling and stress analysis at the lamina level, while precise modeling of an entire VAWT is computationally intensive. This study proposes a comprehensive fatigue and ultimate strength analysis framework for VAWTs. The framework includes load determination, finite element (FE) model establishment, and fatigue and ultimate strength analyses. Wind load determination has been presented in the companion paper. In this study, laminated shell elements are used to model blades, which are separately analyzed by ignoring the influence of the tower and arms. Meanwhile, beam elements are used to model an entire VAWT to conduct a structural analysis of other structural components. A straight-bladed VAWT in Yang Jiang, China, is used as a case study. The critical locations of fatigue and ultimate strength failure of the blade, shaft, arms, and tower are obtained.
URI: http://hdl.handle.net/10397/81355
EISSN: 1996-1073
DOI: 10.3390/en12132584
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Lin, J.; Xu, Y.-L.; Xia, Y. Structural Analysis of Large-Scale Vertical Axis Wind Turbines Part II: Fatigue and Ultimate Strength Analyses. Energies 2019, 12, 2584, 1-18 is available at https://dx.doi.org/10.3390/en12132584
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