航行器水下分离特性研究  

Undersea Vehicle Separation Characteristics

作　　者：肖前进[1] 夏兴隆 钱家昌[1] 刘华坪 周奇 XIAO Qian-jin;XIA Xing-long;QIAN Jia-chang;LIU Hua-ping;ZHOU Qi(Wuhan Second Ship Design and Research Institute,Wuhan 430064,China;School of Aerospace Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064 [2]华中科技大学航空航天学院,湖北武汉430074

出　　处：《水下无人系统学报》2021年第4期477-482,共6页Journal of Unmanned Undersea Systems

摘　　要：航行器水下分离特性是航行器水下发射成功与否的关键。文中针对悬浮状态下浮筒平台与航行器的水下发射分离问题,基于流体体积函数(VOF)多相流模型和动网格技术,仿真研究了弹射气体压力和温度对发射过程航行器及浮筒平台水动力特性和运动特性的影响规律。结果表明:弹射气体压力对尾出筒时航行器和浮筒平台的相对位移量影响较小,位移比例基本与其质量反比例相同;尾出筒后水动力波动与冲击峰值随着弹射气体压力增加而增大;弹射气体温度对出筒过程运动特性影响较小,而出筒后水动力波动随气体温度的升高而增大。The characteristics of underwater separation are crucial to the success of the launch of an undersea vehicle.In this study,the underwater separation of the vehicle and barrel platform in suspend-state is investigated.The influence of ejection gas pressure and temperature on the hydrodynamic and motion characteristics of the vehicle and barrel platform during the launch is numerically simulated using a fluid volume function(VOF)multiphase flow model and dynamic mesh.The results show that the ejection gas pressure has little effect on the relative displacement between the vehicle and the barrel platform when the tail exits the barrel.Furthermore,the displacement ratio is the same as the inverse ratio of its mass.The hydrodynamic fluctuation and impact peak increase with the ejection gas pressure after the tail exits the barrel.Moreover,the temperature of ejection gas has no significant influence on the motion characteristics during the ejection.The hydrodynamic fluctuation increases with gas temperature after ejection.

关 键 词：航行器 分离特性 浮筒平台 压力 温度 

分 类 号：TJ630[兵器科学与技术—武器系统与运用工程] U661.1[交通运输工程—船舶及航道工程]