摘要
从飞机翼面类结构选型设计的角度出发,在等重量基准下,比较了蜂窝夹层和长桁加筋的壁板形式对于翼面主要载荷的承载能力。主要通过工程算法,计算分析了两种壁板结构形式下翼面整体的抗弯能力和局部弯曲刚度,并从复合材料层压板厚度、蒙皮宽度、翼型高度分类对二者承载能力做了比较。得到结论:对于翼型高度低、层板厚度小的次承力翼面结构(如活动面等),蜂窝结构的局部抗弯结构效率一般要高于长桁加筋结构。对于翼型高度高、层板厚度大的主承力翼面结构(如外翼盒段、中央翼等),长桁结构的局部抗弯结构效率一般要高于蜂窝结构。
From the perspective of aircraft wing-box lectotype design,the capability of honeycomb core sandwich form and the stiffener panel form are compared based on the same weight structure.Through engineering calculations,the two forms are respectively analyzed about their resistance against compression buckling and bending stiffness.Data results are charted about different laminate thickness,stiffener spacing,and profile height.The comparison can deducted that sandwich form should have higher priority over stiffener form when laminate is thin and wing-box is low,which appears on movable surfaces such as flap and aileron.On the other hand,when it comes to outboard wing and central wing where laminate is thick and wing box high,stiffener form is more structural efficient.
出处
《科学技术与工程》
北大核心
2014年第20期132-136,143,共6页
Science Technology and Engineering
关键词
蜂窝夹层
长桁加筋
压缩稳定性
抗弯刚度
结构选型
honeycomb core sandwich
stiffener panel
compression stability
bending stiffness lectotype design
