STUDY ON THE STABILITY OF WIND TURBINE BLADE TRAILING EDGE STRCTURE

Abstract

Abstract: Local buckling of trailing edge near the maximum chord length is one of the main failure modes of wind turbine blades. The finite element method is used to simulate the buckling mode and the enhancement of the trailing edge with different relative thickness airfoils. Three blade sections with relative thickness of 19%, 24% and 35% are simulated to study the effects of laminates, filling of foam or balsa on the trailing edge buckling. The buckling analysis with finite element eigenvalue shows that the overlay of the blade shell at trailing edge can effectively inhibit the displacement and improve the stability of the trailing edge. Moreover, the effect of overlay increases with the decrease of airfoil thickness. But, the mass grows quickly with layers. On the other hand, filling of PVC foam with appropriate length at the trailing egde can also obviously improve the structure stability but rarely increase the mass. Compared with PVC foam, balsa has similar effects.

Key words: wind turbine blade, trailing edge buckling, finite element, solid element

CLC Number:

TB332
TK83

YUAN Wei-hua, WU Yu-guo, WANG Guo-fu, QIN Zhi-wen. STUDY ON THE STABILITY OF WIND TURBINE BLADE TRAILING EDGE STRCTURE[J]. Fiber Reinforced Plastics/Composites, 2018, 0(1): 12-17.

References

[1] Zhou H F, Dou H Y, Qin L Z, et al. A review of full-scale structural testing of wind turbine blades[J]. Renewable&Sustainable Energy Reviews, 2014, 33(2): 177-187.
[2] Sheng S. Report on wind turbine subsystem reliability-A survey of various databases(presentation)[J]. Office of Scientific&Technical Information Technical Reports, 2013.
[3] 陈宇奇, 马辉, 陈欣. 风机叶片在台风中结构破坏的分析[C]//全国风力发电技术协作网第二届年会论文集. 北京: 中国环境科学出版社, 2007.
[4] Ataya S. Ahmed M M Z. Damages of wind turbine blade trailing edge: Forms, location, and root causes[J]. Engineering Failure Analysis, 2013, 35(26): 480-488.
[5] Haselbach P U, Branner K. Initiation of trailing edge failure in full-scale wind turbine blade test[J]. Engineering Fracture Mechanics, 2016, 162: 136-154.
[6] Raman V, Drissi-Habti M, Guillaumat L. Numerical simulation analysis as a tool to identify areas weakness in a turbine wind-blade and solutions for their reinforcement[J]. Composites Part B Engineering, 2016, 103: 23-39.
[7] Chen X, Qin Z W, Yang K, et al. Numerical analysis and experimental investigation of wind turbine blades with innovative features:Structural response and characteristics[J]. Science China Technological Sciences, 2015, 32(12): 1-8.
[8] Haselbach P U, Bitsche R D, Branner K. The effect of delaminations on local buckling in wind turbine blades[J]. Renewable Energy, 2016, 85: 295-305.
[9] Kim S H, Bang H J, Shin H K, et al. Composite structural analysis of flat-back shaped blade for multi-MW class wind turbine[J]. Applied Composite Materials, 2013, 21(3): 525-539.
[10] 彭海俊, 秦志文, 王继辉, 等. 胶接面纤维铺层角度对复合材料胶接应力和强度影响分析[J]. 玻璃钢/复合材料, 2017(4): 29-34.

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