Dynamic Characteristic Analysis of a 3-D Semi-Submerged Body as a Fluid-Structure Interaction System

XU Gang; REN Wen-min

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XU Gang, REN Wen-min. Dynamic Characteristic Analysis of a 3-D Semi-Submerged Body as a Fluid-Structure Interaction System[J]. Applied Mathematics and Mechanics, 2004, 25(3): 305-312.

Citation:

XU Gang, REN Wen-min. Dynamic Characteristic Analysis of a 3-D Semi-Submerged Body as a Fluid-Structure Interaction System[J]. Applied Mathematics and Mechanics, 2004, 25(3): 305-312.

Citation:

XU Gang, REN Wen-min. Dynamic Characteristic Analysis of a 3-D Semi-Submerged Body as a Fluid-Structure Interaction System[J]. Applied Mathematics and Mechanics, 2004, 25(3): 305-312.

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Dynamic Characteristic Analysis of a 3-D Semi-Submerged Body as a Fluid-Structure Interaction System

Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P. R. China

Received Date: 2002-12-06
Rev Recd Date: 2003-11-11
Publish Date: 2004-03-15

Abstract

Abstract

An Arnoldi's method with new iteration pattern, which was designed for solving a large unsymmetric eigenvalue problem introduced by displacement-pressure FE 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.
- semi-submerged body,
- fluid-structure interaction,
- finite element method,
- Arnoldi’s method

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References(6)

References

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