泡沫芯材开槽打孔方式对风电叶片轻量化的影响  

Influence of foam core material slotting and drilling methods on lightweight of wind turbine blades

作　　者：杨蕾 李天凯 谭伯杨 赵虎 Yang Lei;Li Tiankai;Tan Boyang;Zhao Hu(Mingyang Smart Energy Group Co.LTD.,528400,Guangdong Zhongshan China)

机构地区：[1]明阳智慧能源集团股份公司,广东中山528400

出　　处：《橡塑技术与装备》2024年第3期44-48,共5页China Rubber/Plastics Technology and Equipment

摘　　要：风电叶片的大型化对叶片质量及成本提出更高的要求,在保证叶片质量的同时降低叶片重量,成为近年来叶片行业降本增效的重要方向。对腹板平板及壳体轮廓板泡沫芯材采用不同的开槽打孔方式,并对其灌注固化后吸胶量、密度及剪切性能进行计算测试。研究发现,增大十字开槽、打孔的间距及采用一字开槽、打孔方式可有效降低芯材吸胶量及密度,G13方向芯材剪切性能均满足要求,G23方向一字槽轮廓板剪切性能较弱;腹板平板主要受到点阵增强柱的影响,40 mm×40 mm双面十字浅槽及打孔试样吸胶后密度最低,减重最多,壳体轮廓板受到点阵增强及板格结构的交互作用,40 mm×40 mm十字深槽间距、20 mm×20 mm孔间距试样剪切性能符合要求,减重效果较好。The large-scale development of wind turbine blades has put forward higher requirements for blade quality and cost. Reducing blade weight while ensuring blade quality has become an important direction for cost reduction and efficiency improvement in the blade industry in recent years. The foam core materials of the web plate and shell contour plate are slotted and perforated in different ways, and the adhesive absorption, density and shear properties of the cured foam core materials are calculated and tested. Research has found that increasing the spacing between cross grooves and holes, as well as using straight grooves, can effectively reduce the adhesive absorption and density of the core material. The shear performance of the core material in the G13 direction meets the requirements;The shear performance of the straight groove contour plate in the G23 direction is weak;The belly plate is mainly affected by lattice reinforced columns;The density of the 40 mm × 40 mm double-sided cross shallow groove and perforated sample after adhesive absorption is the lowest, and the weight loss is the highest;The shell contour plate is subjected to lattice reinforcement and the interaction between the plate lattice structure;The shear performance of the sample with a cross groove spacing of 40 mm×40 mm and a hole spacing of 20 mm×20 mm meets the requirements, and the weight reduction effect is good.

关 键 词：风电叶片 泡沫芯材 开槽打孔 剪切性能 轻量化 

分 类 号：TQ330.8[化学工程—橡胶工业]