| 陈健云,林皋.8—21节点块体精化不协调元[J].计算力学学报,1997,14(1):43~50 |
|
| 
码上扫一扫！ |
| 8—21节点块体精化不协调元 |
| Refined direct stiffness method of three dimensional 8 21 node isoparametric element |
| |
| DOI：10.7511/jslx19971008 |
| 中文关键词: 有限元 精化直接刚度法 不协调块体元 |
| 英文关键词:Node element,isoparametric element,/ RDSM |
| 基金项目: |
| 陈健云 林皋 |
| 大连理工大学土木系 |
| 摘要点击次数: 1530 |
| 全文下载次数: 0 |
| 中文摘要: |
| 本文基于文（２）提出的精化直接刚度法的变分原理，构造了８－２１节点元的精化不协调位移模式，并装入ＳＡＰ５程序中，该单元能通过分片试验数据结果表明：采用精化直接刚度法，可以有效地改装单元特性，使新单元在具原单元的简单、高效、可靠性好的同时，在精度，适应性等方面有大幅度的提高。 |
| 英文摘要: |
| In carrying out the multi input vibration analysis, the high computational effort made us pay particuler attension to refined direct stiffness method (RDSM) to update the original 3 D element. Based on the generalized variational princiaple, a new non conforming displacemant mode of 8 21 node refined isoparametric element is proposed. The numerical results show that this kind of element can pass the patch test and the element possesses many virtues: it can adjust the rigid/flexible characters of the origined element effectively, makes the proposed element simple, hith efficient and reliable while ensure high accuracy convergency and the suitibility. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
