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Structural analysis of an offshore vertical axis wind turbine composite blade experiencing an extreme wind load |
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| Institution: | 1. Department of Aeronautical Engineering, Hindustan Institute of Technology and Science, Padur, Chennai, Tamil Nadu, India;2. Department of Mechanical Engineering, Hindustan Institute of Technology and Science, Padur, Chennai, Tamil Nadu, India;1. National Centre for Maritime Engineering and Hydrodynamics, Australian Maritime College, University of Tasmania, Locked Bag 1395, Launceston, Tasmania, 7250, Australia;2. National Centre for Ports and Shipping, Australian Maritime College, University of Tasmania, Locked Bag 1395, Launceston, Tasmania, 7250, Australia;3. Dept. of Mechanical Engineering, University College London, Torrington Place, WC1E 7JE, London, United Kingdom |
| Abstract: | The vertical axis wind turbine (VAWT) configuration has many advantages for an offshore wind turbine installation. The VAWT is omnidirectional and its rotating mechanical components can be placed close to sea level. In this paper, the structural analysis of a VAWT blade structure subject to a critical load case was investigated with two methods, an analytical model and a finite element (FE) model. It was shown that the utilisation of a composite blade topology can resist the induced flapwise loading and the material strains were contained within their allowable limits. The analytical approach was demonstrated to be a quick and accurate technique to compute the composite blade strain distribution when compared to the FE model results. |
| Keywords: | Wind energy Vertical axis wind turbine (VAWT) Structural Finite element analysis Composite |
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