摘要
主要研究了一种基于承载效率的机翼壁板结构快速化设计方法,首先,本文按照结构相似、载荷相似、材料相似的准则,对复合材料翼面结构模型进行抽象,拟合并构造出复合材料加筋盒段结构屈曲模型,尽可能还原出机翼壁板的真实受力条件;然后,绘制出筋条支持刚度曲线;最后,利用该经验曲线,进一步总结出一种基于结构效率的复合材料加筋盒段结构的屈曲设计方法,实现复合材料加筋板中加强筋的布局与尺寸优化,并应用于某支线客机的中央翼结构设计中,验证该设计方法的正确性。该种方法主要应用于机翼壁板结构的尺寸和布局优化设计,结合了经验法和代理模型方法,具有效率高、模型小、通用性强等诸多优点。
A rapid design method based on load-carrying efficiency is proposed in this thesis for the wing panel structure. Firstly,as far as possible to abstract the composite wing surface and restore the real stress condition of the wing,according to the criterion of similar structure,load and material with the wing,a buckling model of reinforced box is abstracted. Secondly,the experience curves which express the supporting stiffness of the stringers are drawn. Finally,in order to further summarize a buckling design of composite stiffened box and achieve the layout and size optimization of composite stiffened plate,the experience curve is applied to a central wing structure design,thus testing and verifying the design method.
出处
《飞机设计》
2015年第5期28-35,共8页
Aircraft Design
关键词
复合材料
加筋板
机翼盒段
布局优化
结构效率
composite material
stiffened panel
wing box
layout optimization
structural efficiency
