跨介质航行器出入水连续弹道试验与仿真  

Experiments and Simulation of Continuous Water Entry and Exit Trajectories of a Trans-media Vehicle

作　　者：刘喜燕 袁绪龙[1] 罗凯[1] 鲁娜 LIU Xiyan;YUAN Xulong;LUO Kai;LU Na(School of Marine Science and Technology,Northwestern Polytechnical University,Xi an 710072,Shaanxi,China)

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《兵工学报》2023年第5期1225-1236,共12页Acta Armamentarii

基　　金：瞬态物理国家重点实验室基金项目(6142604190401)。

摘　　要：为研究跨介质航行器出入水连续弹道特性,搭建高速入水弹道试验平台,并设计带有内测系统的试验模型,对跨介质航行器出入水连续弹道过程进行试验研究。建立耦合求解流场和航行器运动的非定常数值仿真模型,研究航行器出入水连续弹道的运动规律与流体动力特性,并通过试验结果验证其准确性。研究结果表明:新提出的跨介质航行器实现了入水-转平-出水连续弹道过程,其弹道轨迹呈类抛物线状,入水最大深度为0.9 m;航行器出入水连续弹道运动可分为入水滑行阶段、呈双侧尾拍运动的超空泡航行阶段以及单侧尾拍运动的出水阶段;航行器流体动力特性呈脉冲式振荡特性,由圆锥段、圆柱段以及尾裙段构成尾部流体动力;预置舵角与尾裙的组合形式能够提高跨介质航行器连续出入水的稳定性。To study the characteristics of continuous water entry and exit trajectories of a trans-media vehicle,a high-speed ballistic test platform is built,and the experimental model with a built-in measuring system is designed.An unsteady numerical simulation model is developed to solve the coupled flow field and vehicle motions.The motion law and hydrodynamic characteristics of the vehicle s continuous water entry and exit trajectories are studied and validated by experimental results.The results show that the proposed trans-media vehicle realizes a continuous ballistic process of water entry,leveling and water exit.The trajectory is parabola-like,with a maximum entry depth of 0.9 m.The continuous ballistic movement of the trans-media vehicle can be divided into three stages:the planing stage of water entry,the supercavitating stage with a double-sided tail-slapping motion,and the water exit stage with a single-sided tail-slapping motion.The vehicle exhibits pulse oscillation in terms of hydrodynamics,and hydrodynamic characteristics in its aft body are formed by the cone,cylinder and tail-skirt sections.The combination of a preset rudder angle and tail-skirt can enhance the stability of the trans-media vehicle during continuous water entry and exit.

关 键 词：跨介质航行器 高速入水 转平弹道 流场与弹道耦合 尾拍运动 

分 类 号：TJ630[兵器科学与技术—武器系统与运用工程]