摘要
通过数值模拟研究舰船结构水下非接触爆炸载荷下的响应,以有限元方法建立有限水域中的整船结构的有限元模型,并应用声固耦合算法模拟整船的水下爆炸响应,得到结构的冲击加速度响应和冲击响应谱、瞬态应力/应变分布以及结构易于损坏的部位。
The dynamic responses of a ship structure suffering underwater explosion loads were simulated with the finite element method. The finite element model of the ship structure floating on a finite fluid body was established and successively analyzed using the coupled acoustic-structural algorithm to obtain the underwater explosion responses. Acceleration responses,shock spectrum as well as the transient stress/strain distribution of the structure were computed, which could be referenced in the shockproof design of ship＇s structures.
出处
《船海工程》
2009年第2期28-31,共4页
Ship & Ocean Engineering
关键词
水下爆炸
流固耦合
船体结构
underwater explosion
fluid-structure interaction
ship＇s structure
