552 / 2019-01-17 12:41:23

Characteristics Comparative Analysis of 3D Woven and Four Axial Composite Blade

wind turbine blade； composite material； stress； strain

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The objective of study to justify the relationship between three-dimensional woven reinforced body and the four axial enhanced body composite wind turbine blades, with Pulse16.1 structure vibration analysis system test for two kinds of blade vibration mode and frequency and compared with numerical simulation results, illustrates the accuracy of the finite element model of the blade, a CFD simulation and ACP layer, Perform the finite element analysis on the structure characteristics of the three-dimensional woven and four axial composite material blade under the rated conditions, these blade has the same wing type, same size and whose weight difference are not more than 4%. Made a comparison for the two kinds of blades on the aspect of the stress and strain amplitude and displacement response. The results demonstrate that the new three-dimensional orthogonal woven composite laminates are simple and the resin is more permeable. The flatness and smoothness of the stress curve without stress concentration and has superior stress tolerance. By the analysis of the displacement response of the two kinds of blades in different directions, to illustrate the stress resistance of the three-dimensional orthogonal woven composite blade is derived from the z-yarn binding in the fabric structure.