形式代数在空间网格结构中的应用

文章依据形式代数（ＦｏｒｍｅｘＡｌｇｅｂｒａ）理论，采用ＦＯＲＴＲＡＮ语言编制了实用程序，使外形比较简单的平板网架、筒壳和外形较复杂的球壳、双曲抛物面形和马鞍形等网格结构都能够自动成形，避免了以往繁琐且易于出错的结构成形工作，与计算机辅助图形相结合，既直观又便于修改和检查。文章通过实例来说明形式代数在空间结构的自动成形中的应用。

The Application of Formex Algebra in Space Grid Structure

When designing a space grid structure which is of many nodes and elements by using computer pro- cedures,you must creat numerical model to describe interconnection patterns of skeletal, finite element meshes, coordination of nodes,action of loads,support arrangement,ect.However,configuration is the most difficult for the structure of special shape. Using formex algebra theory , this paper compiles procedure in FORTRAIN language inorder to configurate automatically for the structure of special shape,such as globe,hyperboloid and paraboloid etc.and to avoid previous tedious work.At the same time,this procedure is combined with computer aided graphics aspects,so it is apt to modify and check data.In this paper,it is evident that formex algebra theory is valuable in configuration of space grid structrue of special shape.