筒口气幕环境下的导弹出筒姿态数值仿真  

The numerical simulation for the outlet attitude of the missile based on the gas screen environment

作　　者：尚书聪[1,2] 孙建中[1,2] 程栋[2] 

机构地区：[1]哈尔滨工程大学机电工程学院,哈尔滨150001 [2]中国船舶重工集团公司第七一三研究所,郑州450015

出　　处：《应用力学学报》2013年第3期428-433,479-480,共6页Chinese Journal of Applied Mechanics

基　　金：中船重工集团公司基金(09J4.7.1)

摘　　要：针对潜艇带速潜射时导弹垂直发射出筒过程的力学环境,在发射筒口加载气幕保护装置来降低导弹出筒时的横向流影响,以保证导弹出筒姿态的稳定。本文基于气幕环境及动量、动量矩定理建立了导弹水下垂直发射出筒过程的动力学模型并进行了仿真计算,分别分析了10m/s、12m/s两种出筒速度下有无气幕保护对弹体发射出筒姿态的影响。结果表明:在有无气幕两种工况下,导弹的出筒姿态参数值均随着出筒速度的增加而减小,弹体出筒均伴随着较大的振荡过程;气幕对出筒姿态影响明显,尤其当出筒速度为12m/s时,有气幕工况下的出筒姿态参数值平均减小了61.9%。本文研究结果可应用于相关系统方案的设计论证及弹体运动、发射的安全性评估。In view of the dynamics environment of the underwater missile vertical launching affected by the moving submarine,the gas screen is installed on the outlet of tube to reduce the effect of lateral flow and ensure the stabilization of the outlet attitude of the missile.The underwater missile vertical launching dynamic model is constructed in body coordinate system based on gas screen environment and the momentum and moment of momentum theorems,the influences of the gas screen and without the gas screen on the outlet attitude of the missile are simulated when the velocity of the outlet of the missile is 10m/s and 12m/s,respectively.The results show that the outlet attitude of the missile decreases with the increase of speed of the outlet of the missile.The outlet of missile undergoes a large shock process in the above two cases.The outlet attitude of the missile is affected by the gas screen.Particularly when the velocity is 12m/s,the outlet attitude of the missile decreases by 61.9% on average.The results is a reference for some system design reasoning and safety assessment of missile motion and launching.

关 键 词：垂直发射 气幕 横向流 潜射导弹 出筒姿态 

分 类 号：TJ762.4[兵器科学与技术—武器系统与运用工程]