基于仿生的大展弦比直机翼结构布局形式研究  

Research of High Aspect Ratio Straight Wing Structural Layout Based on Bionics

作　　者：邓扬晨[1] 陈华[2] 

机构地区：[1]沈阳飞机设计研究所一部,辽宁沈阳110035 [2]西北工业大学机电学院,陕西西安710072

出　　处：《航空计算技术》2007年第2期14-19,共6页Aeronautical Computing Technique

基　　金：航空科学基金(03B53003);辽宁省科学技术航空专项基金(20044007)

摘　　要：为了探讨大展弦比直机翼的结构布局形式,借鉴自然界中的鱼骨和鸟羽毛以及树叶的叶脉形式,利用有限元分析与满应力优化作为设计手段,对三种不同的结构布局形式(A构型、B构型和常规构型)开展基于强度、刚度以及重量条件限制下的有关响应的对比研究。计算结果表明:在不同尺度的等重量条件限制下,“A构型”弯曲刚度最大,扭转刚度居中;“B构型”弯曲刚度居中,扭转刚度最小;“常规构型”弯曲刚度最小,扭转刚度最大。分析得出机翼的翼肋布置应该“适当的”倾斜。最后给出三点结论。In order to discuss a structural layout of high aspect ratio wings, author uses fish skeleton and bird＇s feather as well as leaf＇s nervation in nature for reference. Finite element method （FEM） and full stress design （FSD） are combined as a design tool. Based on constraint of strength and rigidity as well as weight respectively, he proposes three different structural layouts for study of some responds, which are A layout and B layout along with general layout. Computational results express that on the different scale of the wing with the same weight constraint, （ 1 ） A layout has maximal bending rigidity and mid torsion rigidity, （2） B layout has mid bending rigidity and minimal torsion rigidity, （3） general layout has minimal bending rigidity and maximal torsion rigidity. Form the results we can obtain that ribs layout should be proper slant. Finally three conclusions have been drawn.

关 键 词：仿生 大展弦比机翼 结构布局 结构优化 有限元 满应力设计 

分 类 号：O343[理学—固体力学]