Journal
MATERIALS & DESIGN
Volume 46, Issue -, Pages 247-255Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2012.10.036
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Funding
- National High Technology Research and Development program of China (863 Program) [2012AA051301]
- National Natural Science Foundation of China [51175526]
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In this paper the initial layout of a 2 MW composite wind turbine blade is designed first. The new airfoils families are selected to design a 2MW wind turbine blade. The finite element parametric model for the blade is established. Based on the modified Blade Element Momentum theory, a new one-way fluid-structure interaction method is introduced. A procedure combining finite element analysis and particle swarm algorithm to optimize composite structures of the wind turbine blade is developed. The procedure proposed not only allows thickness variation but also permits the spar cap location variation over the structure. The results show that, compared to the initial blade, the mass of the optimized blades is reduced and especially for the scheme II (the location of blade spar cap is seen as one of the variables) which exhibit more mass saving. This present study has important significance for the structural design and optimization of wind turbine blades. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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