船舶水弹性分析及试验研究

The Theroetical Analysis and Experimental Study on Ship's Hydroelasticity

本文以半无矩壳理论和三维流体边界元方法为基础，应用干模态技术建立了一个新的实用的船舶水弹性理论模型，用于对船体结构在水中运动的流固－耦合作用进行模态分析；编制了相应的微机计算软件；制作了钢质船模，分别在空气中和水上进行了振动模态试验。数值结果与试验结果符合良好，表明本文提出的水弹性模型及计算程序是正确的、实用的。

Based on the semi-moment-shell theory and 3-dimensional fluid boundary element method,the author applied the technique of dry model to establish a new practical and efficient 3-dimensional theoretical model of fluid-structure interaction for ships vibrating in water.According to the above theories,the author composed a set of computational programs on the micro IBM computer.A steel ship model was designed and made.Tests had been carried on with this model respectively in atmosphere and in water trough.The experimental results were well conform to the numerical ones,showing that the semi-moment-shell theory,the calculating model of ship'shydroelasticity and the computational propgrams in this paper are correct and effective.