山地低空气流对火炮外弹道产生偏差分析  

Analysis of the Deviation of Artillery Outer Trajectory Caused by Mountain Low Air Flow

作　　者：王晋[1] 田军委[1,2] 刘雪松 张震 雷晓明 WANG Jin;TIAN Junwei;LIU Xuesong;ZHANG Zhen;LEI Xiaoming(Xi'an Technological University School of Ordnance Science and Technology,Xi'an 710021,China;Xi'an Technological University School of Electromechanical Engineering,Xi'an 710021,China;Inner Mongolia North Heavy Industry Group Co.LTD,Baotou 014030,China)

机构地区：[1]西安工业大学兵器科学与技术学院,西安710021 [2]西安工业大学机电工程学院,西安710021 [3]内蒙古北方重工业集团有限公司,内蒙古包头014030

出　　处：《火力与指挥控制》2023年第8期53-59,共7页Fire Control & Command Control

基　　金：陕西省重点研发计划(2022GY—316,2022GY-068);西安市智能兵器重点实验室基金资助项目(2019220514SYS020CG042)。

摘　　要：山地低空气流特性较为复杂,会使火炮射程、射高、俯仰角等产生一定的偏差,对火炮射击精度影响较大。以某型155 mm火炮杀爆弹为研究对象,基于位势流动理论分析不同山体气流特性,并建立外弹道六自由度运动方程,分析在不同山体地形所对应的不同特性气流对外弹道横偏、射程、射高、俯仰角等产生的影响。结果表明:初始水平气流对外弹道产生横偏的影响较大;在背风坡发射弹丸的射程比迎风坡射击距离小;随着射角的增加,弹道高、俯仰角增加量逐渐减小并趋于稳定。The characteristics of low altitude air flow in mountain area are complicated,which will have certain deviation on gun range,firing height,transverse deflection and pitch Angle,and have great influence on gun firing accuracy.Taking a certain 155 mm artillery blast fragmentation warhead as the research object,based on the theory of potential flow,the characteristics of air flows in different mountains are analyzed,and the 6-DOF equation of motion of external ballistics is established.The influence of air flows corresponding to different mountain terrains on lateral deflection,range,height and pitch angle of external ballistics is analyzed.The results show that the initial horizontal flow has a great influence on the lateral deflection of the projectile's external ballistics.The range of projectiles fired from the leeward slope is smaller than that fired from the windward slope.With the increase of angle of fire,the increase of trajectory height and pitch Angle decreases and tends to be stable.

关 键 词：山地低空气流 位势流动理论 六自由度弹道方程 偏差 

分 类 号：TJ012.3[兵器科学与技术—兵器发射理论与技术]