| DYNAMIC CHARACTERISTIC ANALYSIS OF A 3-D SEMI-SUBMERGED BODY AS A FLUID-STRUCTURE INTERACTION SYSTEM~ |
| |
| 作者姓名： | 徐刚 任文敏 |
| |
| 作者单位： | DepartmentofEngineeringMechanics,TsinghuaUniversity,Beijing100084,P.R.China |
| |
| 基金项目： | theNationalNaturalScienceFoundationofChina ( 1 9872 0 3 6) |
| |
| 摘 要： | An Arnoldi‘s method with new iteration pattern, which was designed for solving a large unsymmetric eigenvalue problem introduced by displacement-pressure FE (Finite Element) pattern of a fluid-structure interaction system, was adopted here to get the dynamic characteristics of the semi-submerged body. The new iteration pattern could be used efficiently to obtain the Arnoldi‘s vectors in the shift-frequency technique, which was used for the zero-frequency problem. Numerical example showed that the fluid-structure interaction is one of the important factors to the dynamic characteristics of large semi-submerged thin-walled structures.
|
| 关 键 词： | 有限元理论 悬浮物体 动力学特征分析 Arnoldi理论 流体结构相互作用 船舶静力学 |
| 收稿时间： | 6 December 2002 |
Dynamic characteristic analysis of a 3-D semi-submerged body as a fluid-structure interaction system |
| |
| Xu?Gang,Ren?Wen-minEmail author.DYNAMIC CHARACTERISTIC ANALYSIS OF A 3-D SEMI-SUBMERGED BODY AS A FLUID-STRUCTURE INTERACTION SYSTEM~[J].Applied Mathematics and Mechanics(English Edition),2004,25(3):338-346. |
| |
| Authors: | Xu?Gang Email author" target="_blank">Ren?Wen-minEmail author |
| |
| Institution: | Department of Engineering Mechanics, Tsinghua University,Beijing 100084, P.R.China |
| |
| Abstract: | An Arnoldi's method with new iteration pattern,which was designed for solving a large unsymmetric eigenvalue problem introduced by displacement-pressure FE (Finite Element) pattern of a fluid-structure interaction system,was adopted here to get the dynamic characteristics of the semi-submerged body. The new iteration pattern could be used efficiently to obtain the Arnoldi's vectors in the shift-frequency technique,which was used for the zero-frequency problem. Numerical example showed that the fluid-structure interaction is one of the important factors to the dynamic characteristics of large semi-submerged thin-walled structures. |
| |
| Keywords: | semi-submerged body fluid-structure interaction finite element method Arnoldi's method |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《应用数学和力学(英文版)》浏览原始摘要信息 |
| 点击此处可从《应用数学和力学(英文版)》下载免费的PDF全文 |
