等直蜂窝夹芯盒式矩形截面杆约束扭转应力和位移的解析解  

Analytical Solution of Restrained Torsional Stresses and Displacement for Rectangular-Section Box Bar With Honeycomb Core

作　　者：张英世[1] 张行[1] 

机构地区：[1]北京航空航天大学飞行器设计与应用力学系,北京100083

出　　处：《应用数学和力学》2004年第7期711-717,共7页Applied Mathematics and Mechanics

基　　金：航空基金资助项目(99B51024)

摘　　要：　用待定函数法建立等截面蜂窝夹芯盒式矩形截面直杆约束扭转微分方程并求得其通解·　求得无量纲化的面板正应力、剪应力,芯材剪应力和横截面的翘曲位移·　数值结果表明。Differential equation of restrained torsion for rectangular-section box bar with honeycomb core was established and solved by using the method of undetermined function.Non-dimension normal stress, shear stress acting in the faceplate and shear stress acting in the honeycomb-core and warping displacement were deduced. Numerical analysis shows the normal stress attenuates quickly along x-axis. Normal stress acting on the cross-section at a distance of 20h from the fixed end is only one per cent of that acting on the fixed end.

关 键 词：蜂窝结构 约束 扭转 衰减 矩形截面杆 正应力 剪应力 翘曲位移 

分 类 号：V214.6[航空宇航科学与技术—航空宇航推进理论与工程]