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| Finite element modeling and analysis of vertical axis composite tidal current energy blade based on ABAQUS |
| LI Junxiong1, WANG Zun2*, MA Qiucheng1, ZHANG Yaxin2, PENG Chaoyi2, DENG Hang2 |
| 1. School of Mechanical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China; 2. Zhuzhou Times New Material Technology Co. Ltd., Zhuzhou, Hunan 412007, China |
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Abstract In order to explore the influence of composite laminate structure on the mechanical structures characteristics of tidal current energy blades, the fiber-reinforced composite was selected to design the tidal current energy blades, a kind of composite tidal current energy blade with better structure and performance. Two different composite lamination schemes were designed for tidal current energy blades and the finite element model was established by ABAQUS. In one scheme, the laminated fibers at the leading edge of the blade were discontinuous, and in the other scheme, the laminated fibers at the leading edge of the blade were continuous. The mechanical structure characteristics of the two layered structure schemes of the tidal current energy blade under the normal working condition and the extreme working condition were numerically simulated and analyzed to explore the influence of the two layered schemes on the structural performance of the blades. The results show that the continuity of blade leading edge ply fiber can improve the impact resistance of blade leading edge and effectively avoid the failure of blade leading edge ply in operation. Moreover, the strength and stiffness of composite blades can be significantly improved. The results could give a technical suggestion for the development of tidal current energy blades in the future.
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Received: 23 March 2020
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