舰船在水下爆炸载荷作用下的总强度研究

通过数值方法模拟舰船受水下爆炸冲击波载荷及气泡脉动载荷作用下的整体响应。计算过程中,考虑波浪载荷的作用,给出水下爆炸载荷与波浪载荷联合作用下船体响应计算方法,并与传统舰船船体强度分析方法相结合,分别研究水下爆炸冲击波载荷、气泡脉动载荷以及波浪载荷的相互作用下,船体强度计算方法。研究结果表明,在水下爆炸冲击波阶段可以忽略波浪载荷的影响,而在气泡脉动阶段,必须考虑波浪载荷与气泡载荷的联合作用。本研究旨在为水下爆炸载荷作用下的舰船总强度研究提供参考。

Research on Overall Strength of Warships Subjected to an Underwater Explosion

Integral response of warships subjected to shock wave and gas bubble pulsation generated by an underwater explosion were simulated numerically. In the computation process, the effect of wave load is considered, and the method of calculating the responses of warships to the joint effect of underwater explosion load and wave load is presented. By combining the traditional analytic method with this method computation of the ship strength under the joint effect of shock wave load, and wave load as well as that of gas bubble pulsation load and wave load are studied respectively. The results indicate that the effect of wave load can be ignored in the shock wave phase but must be taken into account in the gas bubble pulsation phase.