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复合材料具有特殊的力学性能,拥有更多的可设计变量,可以在不增加质量的前提下进行满足静力、刚度、颤振、发散等要求的前掠机翼的设计。本文使用MSC.NASTRAN有限元分析程序,对前掠机翼进行了优化设计,通过对复合材料前掠机翼的气动弹性剪裁,有效降低了质量,提高了气动性能。
Composites have special mechanical properties, more design variables and the design of the forward-swept wing to meet the requirements of static, stiffness, chatter and divergence without increasing the quality. In this paper, the finite element program of MSC.NASTRAN is used to optimize the design of the forward-swept wing. The aerodynamic elastic tailoring of the composite forward-swept wing effectively reduces the quality and improves the aerodynamic performance.