弹性力学边界元法计算中的数据存取技术

在弹性力学边界元法的程序计算中 ,通常要预先占用上限内存量以保证在此数量范围内的计算数据的随时存取 .这种方法的缺点是降低了系统内存资源的利用率 ,限制了计算程序的灵活性 .本文采用基于 C++语言描述的面向对象数据结构 ,应用于弹性力学边界元计算程序中 ,实现了数据的实时伸缩存取 ,避免了预占内存 ,并给出了 2个计算实例 .本文阐述的方法也适于在有限元法计算中的数据存取

Data Access Technique in Operation of Boundary Element Method in Elastic Mechanics

In the operation of boundary element method in elastic mechanics, there is usually an upper limit of EMS memory occupied in advance for ensuring that less operated data are accessible at any moment. The disadvantages of this method are that the utilizing rate of the resource of EMS memory and flexibilily of the system are depressed. In this paper, the OO data structure with C++ is used in calculating the program of boundary element method in elastic mechanics and it achieves the flexible access of real time data without occupying EMS memory in advance. Here, two real examples of calculation are given. The technique described in this paper can also be used in the calculation of FEM.