| 开孔接管结构三维有限元建模方法 |
| |
| 引用本文： | 张卫义,田海晏,陈罕.开孔接管结构三维有限元建模方法[J].石油化工设备,2001,30(4):29-31. |
| |
| 作者姓名： | 张卫义 田海晏 陈罕 |
| |
| 作者单位： | 1. 北京石油化工学院,
2. 北京化工大学, |
| |
| 摘 要： | 提出一种有效的压力容器开孔接管补强结构三维有限元单元自动剖分方法.它以DXF格式文件为中介,用数学的方法实现有限元模型的自动生成,并能够保证开孔接管相贯区域内都是8节点单元.数值计算结果证明,其计算精度一般高于孔边含有8节点单元的蜕化元有限元模型.
|
| 关 键 词： | 开孔接管 三维有限元 8节点单元 蜕化元 |
| 文章编号： | 1000-7466(2001)04-0029-03 |
| 修稿时间： | 2001年2月27日 |
The method for generating 3-D FEM mesh for pressure vessels with nozzle |
| |
| ZHANG Wei yi ,TIAN Hai yan ,CHEN Han.The method for generating 3-D FEM mesh for pressure vessels with nozzle[J].Petro-Chemical Equipment,2001,30(4):29-31. |
| |
| Authors: | ZHANG Wei yi TIAN Hai yan CHEN Han |
| |
| Affiliation: | ZHANG Wei yi 1,TIAN Hai yan 1,CHEN Han 2 |
| |
| Abstract: | The method for generating 3 D FEM mesh for pressure vessels with nozzle is proposed.The finite element input data is established automatically by mathematical method with DXF form files.By using the method proposed,hexahedron elements are generated and there are no degenerated elements with eight nodes in the vicinity of the junction of nozzle and shell.Numeral results prove that the accuracy of the method proposed is higher than other models with degenerated elements with eight nodes elements nearby the junction of the nozzle and shell. |
| |
| Keywords: | nozzle three dimensional finite element element with eight nodes degenerated element |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
