跨介质航行器高速入水冲击载荷特性  

Impact Load Characteristics of a Trans-media Vehicle during High-speed Water-entry

作　　者：袁绪龙[1] 栗敏 丁旭拓 任伟 周方旭 YUAN Xulong;LI Min;DING Xutuo;REN Wei;ZHOU Fangxu(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》2021年第7期1440-1449,共10页Acta Armamentarii

基　　金：国家数值风洞工程项目(2021);瞬态物理国家重点实验室基金项目(6142604190401)。

摘　　要：跨介质航行器组合了导弹与超空泡武器的优势,比导弹的末段突防能力强,同时弥补了超空泡武器航程不足的缺点,是未来反舰武器的重要发展方向。跨介质航行器高速入水冲击载荷特性及其降载方法是跨介质航行器研发中的关键技术之一。建立跨介质航行器高速入水多相流场与弹道耦合仿真模型,进行模型验证与校核。对典型工况下的跨介质航行器高速入水过程冲击载荷特性进行仿真,并对不同速度下的高速入水过程弹道参数进行对比。结果表明:预置舵角引起的尾拍运动产生周期性的法向过载,达到轴向过载的2.7倍左右;法向力主要由振荡攻角引起的位置力构成,惯性力很小,可以忽略;入水速度的增大引起尾拍频率加快,攻角振荡幅度降低,入水速度对法向冲击力系数影响很小。The trans-media vehicle conbines the advantages of missiles and supercavitating weapons,which has higher terminal penetration capability compared to missile and makes up for the shortcoming of short range of supercavitating weapon.The impact load characteristics of a trans-media vehicle during high-speed water-entry and the load-reduction method are the main key technologies for the development of trans-media vehicles.A coupled simulation model for multi-phase flow and trajectory of trans-media vehicle entering into water at high speed was established and verified.The impact load characteristics of trans-media vehicle during high-speed water entry under typical conditions were simulated,and the ballistic parameters of trans-media vehicle in the high-speed water-entry process were compared.The results show that the periodical normal overload is generated during the tail-slapping,which is about 2.7 times as high as the axial overload,and the normal force is mainly composed of the positional force caused by the oscillating angle of attack,and the inertial force is very small and could be ignored.The increase in the water-entry speed speeds up the tail-slapping frequency and decreases the angle of attack oscillation amplitude,and the water-entry speed has little effect on the normal impact force coefficient.

关 键 词：跨介质航行器 高速入水 冲击载荷 尾拍运动 仿真建模 

分 类 号：TJ630.2[兵器科学与技术—武器系统与运用工程]