FINITE ELEMENT SOLUTION OF THE HYDRO-ELASTIC VIBRATION IN THE COMPLICATE STORAGE TANK
-
摘要: 本文根据对称性采用半解析有限元法,将带有球形弹性隔板的球形贮箱中的三维流弹耦合问题化为两维问题.对流体域采用三角形环单元,球壳隔板采用截锥单元,分别应用Galerkin方法和Hamilton原理对流体和球壳隔板推导出了有限元离散方程.编制了计算机计算程序,并利用Arnoldi方法进行了算例计算与分析.Abstract: Semi-analytical finite element method is applied to reduce the hydroclashc problemof the fluid filled spherical tank with damping spherical shell to two dimensionalproblem, the Gaerkin method and Hamilton principle is used respectively to productthe system equation of flind and dampng spherical shell. Annular triangular element isused in fluld domain, the conical frustum element is used in damping spherical shell.
-
Key words:
- Liquid sloshing /
- Liquid-filled system /
- Eigenvalue
点击查看大图
计量
- 文章访问数: 1804
- HTML全文浏览量: 34
- PDF下载量: 1159
- 被引次数: 0