摘要
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。
Composite materials have special mechanical properties and more design variables,so we can design forward-swept wing to satisfy the requirements of static context,stiffness,flutter and divergence,without increasing weight.In this paper,the FEM software MSC.NSTRAN was used to optimize the forward-swept wing design.Though the composite aeroelastic tailoring,it is effective to reduce weight and improve the aerodynamic performance.
出处
《飞机设计》
2011年第4期24-29,共6页
Aircraft Design
关键词
复合材料
前掠机翼
气动剪裁
composite materials
forward-swept wing
aeroelastic tailoring
