Study of the natural vibration characteristics of water motion in the moon pool by the semi-analytical method

The three-dimensional natural vibration characteristics of water inside a moon pool of an ocean structures are studied. The governing equations are derived based on the linear potential flow theory, and the boundary condition of the total opening bottom suggested by Molin is adopted. A semi-analytic...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hydrodynamics. Series B 2017-02, Vol.29 (1), p.124-134
Main Author: 刘利琴 李妍 黄磊 唐友刚
Format: Article
Language:English
Subjects:
Engineering
Engineering Fluid Dynamics
Hydrology/Water Resources
Moon pool
natural vibration characteristics
Numerical and Computational Physics
parameter influences
semi-analytical method
Simulation
势流理论
半解析法
固有振动特性
固有频率
控制方程
水运动
海洋结构
边界条件
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The three-dimensional natural vibration characteristics of water inside a moon pool of an ocean structures are studied. The governing equations are derived based on the linear potential flow theory, and the boundary condition of the total opening bottom suggested by Molin is adopted. A semi-analytical method is used to solve the governing equations, and the natural frequencies and the motion modes are obtained. Two types of motions are studied： （1） the piston motion in the vertical direction, and （2） the sloshing motion of the free surface. The influences of moon pool＇s structural parameters on the natural frequencies, and the modal shapes are analyzed.
ISSN:1001-6058
1878-0342
DOI:10.1016/S1001-6058(16)60724-2