中文摘要：

机载布放式AUV是利用载机运送至特定海域上空,在一定条件下通过空投方式进入水下,完成预定工作 的自主水下航行器.AUV人水时会受到巨大的载荷冲击,严重时会导致机体折断、元器件失灵,甚至引起弹道失 控.为此,文章采用计算流体力学（ComputationalFluidDynamics, CFD）方法对机载布放式AUV的人水冲击问题 进行了数值仿真研究.对不同人水速度、不同人水角度下AUV受力过程进行了计算,得出了不同人水条件下的 速度响应曲线和压力响应曲线,可为机载布放式AUV的机体结构设计和投放条件研究提供参考.

英文摘要：

The airborne launched AUV is an autonomous underwater vehicle, which is transported to the specific sea area by aircrafts, and enters into water in certain conditions to accomplish scheduled work. The airborne launched AUV will endure very large force at the moment it enters water, which may cause dam-ages to the structures, inner apparatus and even lose the control of trajectory. In this paper, the computa-tional fluid dynamics （ CFD） method is used to simulate and study the water entry impact of airborne launched AUV. The loading process of AUV is computed in different water entry velocity and different water entry angle. The velocity response curves and stress response curves are attained in different water entry condi-tions. The conclusions can provide references for the structure design and launched conditions of airborne launched AUV.