摘要
以一水下无限长周期加肋圆柱壳受迫振动的能量流输入为研究对象,分别用Flügge方程和Helmholtz方程建立壳体及声场的波运动方程,考虑肋骨的四种作用力和力矩,探讨了外流场对加肋圆柱壳受激振动输入能量流的影响,得出了外流场可以抑制系统能量流输入、水下加肋圆柱壳比充液加肋圆柱壳能量流输入弱的结论。
The performance of the input power flow from a cosine harmonic line force into an infinite cylindrical shell periodically stiffened with rings immersed in water was studied.The harmonic motion of the shell and the pressure field in the fluid were described by Fltigge shell equations and Helmholtz equation respectively, four kinds of rings＇ forces and moments were considered. The influence of the outer fluid field on the input power flow was discussed,and the conclusion points out that the outer fluid field can restrain the input power flow and the input power flow in the fluid-loaded stiffened shell is less than that in the fluid-filled stiffened shell.
出处
《船舶力学》
EI
北大核心
2006年第4期140-147,共8页
Journal of Ship Mechanics
基金
"十五"国防预研基金资助项目(10105010204)
关键词
加肋圆柱壳
输入能量流
周期加肋圆柱壳-流场耦合系统
stiffened cylindrical shell
input power flow
periodically stiffened shell-fluid coupled system
作者简介
严谨（1974-）,男,华中科技大学交通科学与工程学院博士研究生.
