摘要
文中综合利用微型计算机的数据库管理系统DBASEⅢ和AUTOCAD绘图软件,开发了基于有限元方法和优化设计理论的CAD软件。对矩形空间桁架,按总优化问题分解为子规划的优化策略实现了矩形空间桁架主参数的优化。文中论述了统一描述空间桁架拓扑方案的方法——组文件,借助于组文件,用AUTOLISP语言实现了空间桁架有限元分析前处理的统一方法;论述了空间桁架后处理的方法和绘制工作图的方法。
A CAD package is developed based on finite element method and optimization design theory by combined application of data base management system Dbase Ⅲ and graphic software package Auto CAD available for microcomputers. Optimization of main parameters for rectangular space lattice structure is carried out by a optimization process of decomposing the whole optimization problem into subprogramming problems. In this paper, a method for consistent description of space lattice struture topology group files is discussed.With the aid of group files and utilization of Autolisp language, a consistent method of pre- data processing for finite element analysis of space lattice structure is worked out, method of postdata processing and working drawing making for space lattice structure is also introduced.
出处
《起重运输机械》
1989年第2期3-10,共8页
Hoisting and Conveying Machinery
