摘要
单元刚度矩阵的建立是有限元分析中的一个重要步骤。就实际钻柱受力与变形分析中出现的20节点六面体单元进行研究,给出了计算单元刚度矩阵的方法和步骤,并运用C语言编写了相应程序,为解决大型三维有限元问题提供了较好的思路。
The calculation of element stiffness matrix is an important step of Finite Element analysis.A study was made on 20-Node and 6-Side element which appeared on actual analysis of deformation and stress of drill string and put on the detailed methods and procedures of the calculation of element stiffness matrix.Moreover,the corresponding procedures using C Programming Language was prepared.All provide a better idea for the settlement of large-scale three-dimensional finite element.
出处
《石油矿场机械》
2010年第3期36-39,共4页
Oil Field Equipment
基金
山东省自然科学基金项目"细长柔性体动力学及其计算机仿真研究"(Q2006A08)
关键词
钻柱
单元刚度矩阵
有限元
20节点
C语言
drill string
element stiffness matrix
finite element analysis
20-node
C programming language
