为对船体在水下爆炸球面冲击波作用下的刚体动态响应特性进行研究,提出了一种药包在水下任意位置时船体在球面冲击波作用下的刚体运动求解方法。通过实尺度舱段水下爆炸试验及实船试验验证了理论方法的正确性,最后利用该理论探讨了刚体运动对舰船总体响应的影响。结果表明,船体在水下爆炸过程中的刚体运动速度对舰船总体速度响应有较大影响,由此产生的刚体运动动能在结构整体响应研究中不可忽略。分析结果为舰船在水下爆炸过程中的刚体运动分析及舰船局部结构强度考核试验的进行提供了参考。
In order to study the dynamic response of the rigid ship's hull subjected to a spherical shock wave as a result of an underwater explosion, a solution method is presented to calculate the hull rigid body motion under the action of a spherical shock wave when the charge is in an arbitrary position under the water, d. The full-scale cabin underwater explosion and full-scale ship test results verify the correctness of the theoretical method used. Finally, the theory is used to discuss the impact of rigid body motion on the response of the whole ship. The results show that the rigid body velocity of the hull during an underwater explosion has a great impact on the velocity response of the whole ship, and the resulting rigid body kinetic energy cannot be ignored during the study of the overall response of the structure. The results provide a reference for the rigid body motion analysis of the ship during the process of an underwater explosion and the cabin test of the ship's local structural strength.