水下反蛙人火箭弹六自由度弹道仿真  

Six-Degree-of-Freedom Ballistic Simulation of Underwater Anti-Frogman Rocket

作　　者：王金云 王孟军 周晖杰[2] WANG Jin-yun;WANG Meng-jun;ZHOU Hui-jie(Hebei Key Laboratory of Dual Medium Power Technology,Handan 056017,China;College of Science and Tech-nology,Ningbo University,Ningbo 315212,China)

机构地区：[1]河北省双介质动力技术重点实验室,河北邯郸056017 [2]宁波大学科学技术学院,浙江宁波315212

出　　处：《水下无人系统学报》2021年第3期313-319,共7页Journal of Unmanned Undersea Systems

摘　　要：水下火箭弹作为近海港口防御的一种新型预置武器,具有速度高、杀伤力大、使用方便等优点,可有效对抗敌方蛙人的侵扰。为深入探索其水下弹道航行特性,以某型水下火箭弹为研究对象,建立水动力学弹道运动模型,基于VC++语言自主编程,对水下火箭弹六自由度弹道航行特性进行仿真,并通过水下发射试验对其航行稳定性进行验证。结果表明,在一定初始攻角条件下,初速为100 m/s的射弹, 4.3 s内速度衰减至65m/s,并趋于稳定;弹道水平射程达到660m,射高突破37m;弹体俯仰角在4 s内由12°变化为-7°,俯仰角速度3s内有5°~-8°的波动,弹道倾角从初始10°变化为-12°,攻角由5°变化为-6°,这些参数均发生显著变化,需在水下弹道优化设计中充分考虑。该方法可为新一代水下反蛙人预置武器弹道设计提供参考。As a new type of preset weapon for coastal port defense,underwater rockets have the advantages of high speed,high lethality,and convenient use,which can effectively resist the invasion of the enemy frogman.To deeply explore its underwater ballistic-navigation characteristics,taking a certain type of underwater rocket as the research object,a hydrodynamic ballistic motion model was established,and the six-degree-of-freedom ballistic-navigation characteristics of the underwater rocket were simulated based on VC++language self-programming,and its navigation stability was verified through of the underwater launch test.The results show that the rocket with an initial velocity of 100 m/s decreases to 65 m/s within 4.3 s and tends to be stable under a certain initial angle of attack,the ballistic horizontal range reaches 660 m,and the rocket height breaks through 37 m,the pitching angle of the rocket changes from 12°to-7°within 4 s,the pitching angular velocity fluctuates from 5°to-8°in 3 s,the angle of attack changes from 5°to-6°,the trajectory tilt angle changes from initial-10°to-12°.This study can provide a reference for the ballistic design of a new generation of underwater anti-frogman preset weapons.

关 键 词：水下反蛙人火箭弹 弹道仿真 水下发射试验 

分 类 号：TJ630[兵器科学与技术—武器系统与运用工程] TJ012.3