空投 UUV 入水冲击仿真研究

摘要

There is a strongly impact on the air-launched unmanned underwater vehicle during it is ente-ring the water.The impact is harmful to both the shell strength and the apparatus.Therefore,it is very im-portant to master the regularity of impact for the study of the shell strength design and the safety water-entry method of UUV.The water-entry impacting models of air-launched UUV were established,and the impact forces of water-entry about the UUV were calculated with different water-entry angles and different veloci-ties by ANSYS /LS-DYNA.Finally,the emulation data were analyzed to form some conclusions which pro-vide useful reference for safety water-entry of air-launched UUV.%空投布放的水下航行器在入水冲击初期会遭受巨大的冲击载荷，可能对壳体结构和携带的仪器设备造成很大的危害。掌握 UUV 在不同工况入水时所受冲击力的情况，对研究空投 UUV 壳体强度设计和安全入水方法都有着非常重要的作用。建立了 UUV 入水有限元仿真模型，并利用 ANSYS ／LS-DYNA 对 UUV 在多种工况下入水时所受冲击力的情况进行计算。最后通过分析仿真结果数据得到几点有益的结论，为空投 UUV 安全入水提供有价值的参考。