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提出了一种全复合材料前掠机翼的设计与CFD/CSM一体化分析流程。首先进行了机翼气动分析,获得不同迎角下的机翼气动特性;然后根据机翼结构各部件的传力特性,基于等强度原则确定了各部件的形状和尺寸并完成了变截面复合材料部件的铺层设计;最后通过CFD/CSM载荷传递进行了机翼结构的力学性能分析。CFD/CSM一体化计算结果满足设计技术指标;与传统金属机翼相比,结构减重达40%,刚度提升约30%。说明该设计方案在机翼的初步设计阶段具有良好的参考价值。
An all-composite forward-swept wing design and CFD / CSM integration analysis process are proposed. Firstly, the aerodynamic analysis of the wing was carried out to obtain the aerodynamic characteristics of the wing at different angles of attack. Then, based on the force transmission characteristics of each wing structure, the shape and size of each part were determined based on the principle of equal strength, Component design; Finally, the mechanical performance analysis of the wing structure was carried out by CFD / CSM load transfer. CFD / CSM integration results meet the design specifications; compared with traditional metal wings, the structure weight loss of 40%, stiffness increased by about 30%. It shows that this design scheme has a good reference value in the initial design phase of the wing.