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本文讨论了微型机有限元程序设计的思想和技巧。通过把一个有限元程序分成几个程序段,整体结构的信息单元化以及采用波阵法,可以在微型机上进行一般的平面结构的静力有限元分析。根据上述程序设计思想和技巧编制了具有部分前后处理功能的有限元程序,包括网格自动生成,带宽优化以及结构网格图和截面应力分布图的图象显示。最后,通过几个典型的例子说明该程序的功能。
This article discusses the thoughts and techniques of finite element program design for microcomputers. By dividing a finite element program into several blocks, the information of the entire structure is unitized, and the wave matrix method is used, the general finite element analysis of the planar structure can be performed on the microcomputer. Based on the above programming ideas and techniques, a finite element program with some pre- and post-processing functions was compiled, including grid automatic generation, bandwidth optimization, and structural grid maps and cross-sectional stress maps. Finally, the function of the program is illustrated by several typical examples.