基于ABAQUS软件的U形薄壳加肋结构热变形分析  

THERMAL DEFORMATION ANALYSIS OF THE U-SHAPED THIN SHELL STRUCTURES WITH STIFFENERS BASED ON ABAQUS

作　　者：丁常方 张晶 褚洪杰[1] 尹亮[1] 郑国栋 

机构地区：[1]航天材料及工艺研究所,北京100076 [2]航天长征睿特科技有限公司,天津300462

出　　处：《玻璃钢／复合材料》2017年第12期41-44,共4页Fiber Reinforced Plastics/Composites

摘　　要：U形薄壳加肋结构在航空航天领域应用广泛,然而由于产品截面热变形,需要用专用工装或分别测量进行定位制孔,工序烦琐,制造周期较长。以经典层合板理论为依据,借助ABAQUS软件建立U形薄壳加肋结构的有限元模型,对其截面尺寸进行计算和预测,并与实际产品对比,结果表明:在局部建模中考虑钢模具的计算条件下的预测数值与实际产品基本一致,而由于整体建模未考虑树脂在固化变形中的作用,其计算结果较实际截面尺寸偏小;ABAQUS软件可用于该结构铺层产品的热变形预测。The U-shaped thin shell structures with stiffeners are widely used in the field of aeronautic and aerospace. However,due to the thermal deformation of the cross section of the structures,the hole-position and drilling are carried out by the special production tools or separate measurement,which lead to the complex procedure and long manufacture cycle. In this study,the finite element analysis of ABAQUS was employed to calculate and predict the sectional dimension of the U-shaped thin shell structure. The results show that the predictive values in the design condition of local modeling with steel tool were consistence with that of the actual products. While the calculating results of the integrated modeling were smaller than that of actual dimension,which could be attributed to the consideration without steel tools in this modeling. It is concluded that the ABAQUS can be used for the thermal analysis and prediction of the U-shaped thin shell structure with stiffeners.

关 键 词：ABAQUS软件 薄壳加肋结构 热变形 

分 类 号：TB332[一般工业技术—材料科学与工程]