组合壳体大变形分析的样条函数法  

SPLINE FUNCTION METHOD OF LARGE DEFORMATION ANALYSIS OF COMPOSITE SHELLS

作　　者：李丽娟[1] 刘锋[1] 梅占馨[1] 万虹[1] 

机构地区：[1]青岛化工学院,西安建筑科技大学

出　　处：《工程力学》1995年第1期19-23,共5页Engineering Mechanics

摘　　要：本文采用不等距三次Ｂ样条函数对旋转壳在整体坐标下的位移进行插值，给出了周向插值所必须满足的周期性条件，采用罚单元法，给出了组合壳体在整体坐标下的协调关系。与惯用方法相比，这种方法简单明了直观性强，易于接受。文末给出了算例。Unequidistant bicubic B-spline function is employed in this paper to represent the displacement components of rotational shells under global coordinates. The periodicity condition demanded by the circumferential interpolating function is given. By using a penaltyelement method, the paper provides the compatible relations of composite shells under global coordinates. Compared with the conventional methods, the technique used in this paper is simple and clear, and easy to be understood. One example is presented.

关 键 词：组合壳体 变形 样条函数 有限元 工程弹性力学 

分 类 号：TB125[理学—工程力学]