SIMULATION ANALYSIS AND VERIFICATION OF 1.5MW WIND TURBINE BLADES BY VARI

Abstract

Abstract: The runner design of 1.5MW wind turbine blades made by vacuum-assisted resin infusion (VARI) was analyzed. The filling time in different injection ways and space of injection runners were investigated simultaneously. The resin flow form, the pressure in the mould and the location of venting gates were also analyzed. The best injection scheme has been optimized at last. On that basis, the optimal injection position of simulation for mold filling machine forming was decorating two runners in the root and the space was 487 mm, arranged 3 injection runners along the direction of blade length and the best numbers of injection gates and vent gates were 13 and 14 respectively. When used the simulated results for actual blade molding process, it indicated that the practical filling time was 3.63h, which had 0.38h time different compared with simulated results.

Key words: vacuum, molding, wind turbine blade, runners, filling

CLC Number:

TB332

TANG Yang-ge, ZHOU Hong-li, WANG Hong, LIU Jin-rong. SIMULATION ANALYSIS AND VERIFICATION OF 1.5MW WIND TURBINE BLADES BY VARI[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(9): 30-34.

References

[1] 高会焕. 纤维增强材料风机叶片发展概述[J]. 玻璃钢/复合材料,2009, (4): 104-108.
[2] 戴春晖,刘钧,曾竟成等. 复合材料风电叶片的发展现状及若干问题的对策[J]. 玻璃钢/复合材料,2008, (1): 53-56.
[3] 赵渠森,赵攀峰. 真空辅助成型工艺(VARI)研究[J]. 纤维复合材料,2002,1: 45-46.
[4] 魏俊伟,张用兵,郭万涛. 真空辅助成型(VARI)工艺研究进展[J]. 材料开发与应用,2010,6: 99.
[5] 毕向军,李宗慧,唐泽辉,李薇. 基于压力的树脂基复合材料成型工艺设计[J]. 玻璃钢/复合材料,2010, 210(1): 86-88.
[6] 李炜,罗永康. 真空辅助树脂传递注塑纺织复合材料成型工艺[C]. 第十四届全国复合材料学术会议论文集(NCCM214), 2006. 1314-1319.
[7] 孔晋峰,张彦飞,刘亚青. 数值传递模塑(RTM)工艺数值模拟研究进展[J]. 绝缘材料,2008, 41(4): 51-55.
[8] Francois Trochu,Edu Ruiz,Vincent Achim,et al. Advanced numerical simulation of liquid composite molding for process analysis and optimization[J]. Composites: Part A, 2006,37: 890-902.
[9] 范晓琴,吴晓青. RTM 工艺中纤维渗透率的研究进展[J]. 玻璃钢/复合材料,2006,3: 44-49.
[10] ZHANG Kaipeng,TAN Hua,WANG Jihui,ZHU Yingdan. Numerical Simulation of Mold Filling in Resin Transfer Molding Using Isoparametric Method[J]. Journal of Wuhan University of Technology-Mater. Sci. Ed.,2005,20(1): 98-101.
[11] 梁晓宁,李炜,罗永康,张锦南. 厚铺层结构纤维增强体渗透性能研究[J]. 玻璃钢/复合材料,2010, 210(1): 46-48.
[12] 邓京兰,王继辉,连军. RTM 充模过程(I): 数学模型的建立[J]. 武汉理工大学学报,2003, 25(7): 51-53.
[13] 江顺亮. RTM 加工工艺充模过程的计算机模拟[J]. 复合材料学报,2002, 19(2): 13-17.
[14] 邓育文. 复合材料液体模塑成型工艺增强材料渗透率的研究[D]. 武汉理工大学, 2005. 14.
[15] 孙玉敏,段跃新,李丹,梁志勇,张佐. 风机叶片RTM 工艺模拟分析及其优化[J]. 复合材料学报, 2005,22(4): 26.
[17] 夏盛来,何景武. 基于工程应用的有限元网格划分研究[J]. 飞机设计,2008,2 8(4): 10-13.