炮口制退器侧孔排布对尾翼弹尾翼的影响研究  

Study on the Influence of Side Hole Arrangement of Muzzle Brake on the Tail Fin of Fin-stabilized Projectiles

作　　者：谢景云 郭张霞[1] 金寅翔 张江晨 王大为 XIE Jingyun;GUO Zhangxia;JIN Yinxiang;ZHANG Jiangchen;WANG Dawei(School of Mechatronics Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机电工程学院,太原030051

出　　处：《火力与指挥控制》2023年第4期178-183,共6页Fire Control & Command Control

摘　　要：尾翼弹在发射出膛时尾翼部位会受到炮口制退器腔室内流场的影响,改变其原定的发射姿态,而炮口制退器侧孔排列是改变腔室内流场复杂程度的主要原因。提出发射状态下,研究炮口制退器的侧孔排布对尾翼部位受力状态的影响规律。利用动网格技术,对尾翼弹尾翼在炮口制退器腔室内的运动进行流场仿真模拟,研究炮口制退器不同侧孔排布对尾翼弹尾翼的运动影响。结果显示,在保证炮口制退器侧孔总面积不变的条件下,只需使随炮口制退器每排侧孔数量增加就能使尾翼所受径向力矩和轴上力矩逐渐减小,增加了尾翼弹的飞行稳定性,在工程应用中有着极大价值。When the fin-stabilized projectiles are launched out of the chamber,the tail fins will be affected by the flow field in the chamber of the muzzle brake and will change its original launch attitude.The arrangement of the side holes of the muzzle brake is the main reason to change the complexity of the flow field in the chamber.Therefore,it is proposed to study the influence of the side hole arrangement of muzzle brake on the stress state of the tail fins under the launch state.In this paper,using the dynamic grid technology is used to make the simulation of the flow field of the movement of the tail fins of the fin-stabilized projectiles in the chamber of the muzzle brake,and the influence of the different side hole arrangement of the muzzle brake on the movement of the fins of the fin stabilized projectiles is studied.The results show that under the condition that the total area of the side holes of the muzzle brake remains unchanged,as long as the number of side holes in each row of the muzzle brake increases,the radial torque and axial torque held by fins can be gradually reduced,the flight stability of the fin-stabilized projectiles increases,it is of great value in engineering application.

关 键 词：尾翼弹 膛口流场 动网格技术 炮口制退器 

分 类 号：TJ012.2[兵器科学与技术—兵器发射理论与技术]