| 基于Householder方法的子域精细积分 |
| |
| 引用本文： | 刘婷婷,张文首,林家浩.基于Householder方法的子域精细积分[J].计算力学学报,2009,26(4):535-538. |
| |
| 作者姓名： | 刘婷婷 张文首 林家浩 |
| |
| 作者单位： | 大连理工大学工业装备结构分析国家重点实验室,大连,116024 |
| |
| 摘 要： | 有限元法生成的矩阵通常具有尺度和带宽很大的特点,应用子域精细积分面临着选择子域的困难。本文采用Householder方法将矩阵三对角化,从而使子域精细积分可用于大型有限元系统。通过在子域精细积分中引入预估-校正格式,可以在不需要迭代的情况下得到比蛙跳格式更高的精度。
|
| 关 键 词： | Householder变换 预估-校正 子域精细积分 瞬态热传导 |
| 收稿时间： | 4/4/2007 12:00:00 AM |
Subdomain precise integration method based on Householder method |
| |
| LIU Ting-ting,ZHANG Wen-shou and LIN Jia-hao.Subdomain precise integration method based on Householder method[J].Chinese Journal of Computational Mechanics,2009,26(4):535-538. |
| |
| Authors: | LIU Ting-ting ZHANG Wen-shou and LIN Jia-hao |
| |
| Institution: | State Key Laboratory of Structural Analysis and Industrial Equipment;Dalian University of Technology;Dalian 116024;China |
| |
| Abstract: | The sizes and bandwidths of the matrices generated by finite element method are usually quite large,so it is difficult to choose a suitable subdomain when using subdomain precise integration method.By using Householder method to reduce the matrices to tridiagonal form in this paper,subdomain precise integration method can then be used in large finite element systems.More accurate results compared to modified midpoint method can be achieved without iterations by introducing predictor-corrector method to subd... |
| |
| Keywords: | Householder reduction predictor-corrector subdomain precise integration transient heat transfer |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《计算力学学报》浏览原始摘要信息 |
| 点击此处可从《计算力学学报》下载免费的PDF全文 |
