摘要
本论文以给定外形及尺寸的复合材料机翼为研究对象,进行机翼的结构设计和整体成型方案的研究。利用CATIA软件建立机翼的三维实心模型,设置模型为各向同性材料,并以三点弯曲的加载方式进行有限元分析。基于COMSOL的有限元结果,对机翼主要受力区域进行单独设计。结合梁结构屈曲和刚度效率准则,提出了“双C+工字组合梁”的骨架方案。通过对采用等厚度铺层的中央翼盒进行位移响应分析,提出了中央翼盒阶梯铺层的设计方案。利用ABAQUS对铺层后的中央翼盒进行有限元分析,并对比试验结果对中央翼盒铺层进一步设计,提高中央翼盒的刚度。采用分步固化+共胶接成型工艺,避免填充泡沫加工的同时提高了机翼整体载重比。最终提出了一种屈曲及刚度效率高的复合材料机翼设计方案,其中机翼总重为316.18 g,载荷/重量比为34.85 N/g,证明了设计方案的合理性和有效性。
Taking the composite wing with a given shape and size as the research object,the structure design of the wing and the overall forming scheme are studied.The 3D model of the wing is established by CATIA,and the model is set as an isotropic material,and the finite element analysis is carried out with the loading method of three-point bending.Based on the finite element results of COMSOL,the main stress areas of the wing are individually designed.Combining the beam structure buckling and stiffness efficiency criteria,a skeleton scheme of“double C+I-shaped composite beam”is proposed.Then through the displacement response analysis of the central wing box with equal thickness ply,the design scheme of the central wing box ladder ply is proposed.The finite element analysis of the laminated central wing box was carried out by ABAQUS,and the central wing box was further designed by comparing the test results to improve the stiffness of the central wing box.The distribution curing+co-bonding molding process is adopted to avoid filling foam processing and improve the overall load-ratio of the wing.Finally,a composite wing design scheme with high buckling and stiffness efficiency is proposed,in which the total weight of the wing is 316.18 g and the load/weight ratio is 34.85 N/g,which proves the rationality and effectiveness of the design scheme.
作者
王静
路畅
邬盼盼
李闯
WANG Jing;LU Chang;WU Panpan;LI Chuang(School of Materials Science and Engineering,Shenyang Aerospace University,Shenyang 110136,China;College of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;College of Automation,Shenyang Aerospace University,Shenyang 110136,China)
出处
《复合材料科学与工程》
CAS
北大核心
2023年第7期50-56,共7页
Composites Science and Engineering
基金
国家自然科学基金(51403129)
辽宁省兴辽英才计划项目(XLYC1907019)
辽宁省教育厅面上项目(LJKZ0171)
辽宁省大学生创新创业计划训练项目。
关键词
复合材料机翼
中央翼盒
铺层设计
组合梁
分步固化
composite material wing
central wing box
ply design
composite beam
step curing
