压缩空气弹射系统内弹道特性

doi:10.3969/j.issn.1000-1093.2021.12.008

摘要/Abstract

摘要： 为分析压缩空气弹射系统内弹道特性，以压缩空气弹射装置为研究对象建立弹射过程内弹道数学模型。通过数值计算，分析发射阀全开时间、发射阀最大流通面积和低压室初始容积对内弹道特性的影响规律。结果表明：发射阀全开时间越短，弹射总时间越短，弹体出筒初始速度越高，弹体过载也越大；在一定范围内，随着发射阀最大流通面积增大，弹射总时间变短，弹体初速度增高，弹体过载变化越平缓，但发射阀最大流通面积对弹体最大过载影响较弱；低压室初始容积对弹射行程和弹体出筒初始速度影响较弱，对弹射初期弹体过载影响较大。

关键词: 压缩空气弹射, 内弹道特性, 发射阀, 低压室初始容积

Abstract: An interior ballistic mathematical model of ejection process was established to investigate the interior ballistic characteristics of compressed air ejection system under different initial conditions.The effects of the full opening time and flow area of launch valve and the initial volume of low-pressure chamber on the interior ballistic characteristics were studied through numerical calculation.The results show that the opening time of launch valve has a significant impact on the internal ballistic characteristics，and with the increase in the opening speed，the ejection time becomes shorter，the initial velocity of projectile increases，and the overload of projectile becomes larger. In a certain range，with the increase in the maximum flow area of launch valve，the ejection time becomes shorter，the initial velocity of projectile increases，and the overload of projectile changes more smoothly.However，the maximum flow area of launch valve has a weak influence on the maximum overload of projectile.The initial volume of low-pressure chamber has a weak influence on the ejection stroke and velocity，but has a great influence on the overload of projectile at the initial ejection stage.

Key words: compressedairejection, interiorballisticcharacteristics, launchvalve, initialvolumeoflowpressurechamber

中图分类号:

TJ768.2⁺1

李博平，李国庆，张笈玮，吕宏亮，武军，李孟源，李聪睿. 压缩空气弹射系统内弹道特性[J]. 兵工学报, 2021, 42(12): 2606-2616.

LI Boping， LI Guoqing， ZHANG Jiwei， L Hongliang， WU Jun， LI Mengyuan， LI Congrui. Interior Ballistic Characteristics of Compressed Air Ejection System[J]. Acta Armamentarii, 2021, 42(12): 2606-2616.

参考文献

［1］丛龙腾.大口径火箭弹冷发射流固耦合仿真研究[D].南京:南京理工大学，2015.
CONG L T.Fluid-structure coupling simulation of cold launch of large caliber rocket[D].Nanjing:Nanjing University of Science and Technology，2015.(in Chinese)
[2］方九如.超近程防御系统压缩空气发射装置分析[D].南京:南京理工大学，2014.
FANG J R.Analysis of compressed air launch device of ultra-short range defense system[D].Nanjing:Nanjing University of Science and Technology，2014.(in Chinese)
[3］李军，胡亚，丛龙腾，等.能量因素对压缩空气弹射内弹道性能影响研究[J].航空兵器，2016(3):71-74.
LI J，HU Y，CONG L T，et al.Study on the influence of energy factors on the interior ballistic performance of compressed air ejection[J].Aero Weaponry，2016(3):71-74. (in Chinese)
[4］李志华，王树宗.潜艇气动发射装置发射阀设计分析[J].液压与气动，2006，29(1):69-72.
LI Z H，WANG S Z.The characteristic analyses of submarine pneumatic launching device[J].Chinese Hydraulics & Pneumatics，2006，29(1):69-72.(in Chinese)
[5］刘救世.贮气瓶供气无人机弹射器弹射过程的研究[D].郑州:郑州大学，2013.
LIU J S.Study on the ejection process of the UAV catapult supplied by gas cylinder[D].Zhengzhou:Zhengzhou University，2013.(in Chinese)
[6］刘兰荣，马胜钢，刘晓龙，等.贮气瓶供气弹射系统性能的仿真研究[J].机床与液压，2013，41(11):170-172.
LIU L R，MA S G，LIU X L，et al. Simulation research on the performance of ejection system supplied by air bottle[J].Machine Tool ＆ Hydraulics，2013，41(11):170-172. (in Chinese)
[7］吴伟峰.气动弹射试验台关键技术研究[D].哈尔滨:哈尔滨工程大学，2016.
WU W F. Research on key techniques of pneumatic ejection test rig[D].Harbin:Harbin Engineering University，2016. (in Chinese)
[8］芮守祯，邢玉明．几种导弹弹射动力系统内弹道性能比较[J].北京航空航天大学学报，2009，35(6):766-770．
RUI S Z，XING Y M.Comparative studies of interior ballistic performance among several missile eject power systems[J].Journal of Beijing University of Aeronautics and Astronautics，2009，35(6):766-770. (in Chinese)
[9］杨风波，马大为，乐贵高，等.结构参数对弹射器气动性能影响分析[J].机床与液压，2014，42(9):95-98.
YANG F B，MA D W，LE G G，et al. Analysis of influence on pneumatic performance of ejector by structural parameters[J].Machine Tool ＆ Hydrrulics，2014，42(9):95-98.(in Chinese)
[10］熊镐，王惠源，王海旭.基于Fluent的一级气体炮内弹道研究[J].兵器装备工程学报，2019，40(3):77-81.
XIONG H，WANG H Y，WANG H X. Research on internal ballistics of single-stage gas gun based on Fluent[J].Journal of Ordnance Equipment Engineering，2019，40(3):77-81.(in Chinese)
[11］ WANG B Q，WANG C，HUANG H L，et al.Analysis of underwater projectile experiment using one stage light gas gun and numerical simulation[J].Applied Mechanics and Materials，2012，226/227/228: 776-779.
[12］谢磊，高钦和，邵亚军.压缩空气弹射内弹道影响因素作用规律研究[J].火力与指挥控制，2019，44(3):116-119.
XIE L，GAO Q H，SHAO Y J.Analysis of factors to compressed air ejection interior ballistic based on Fluent[J].Fire Control & Command Control，2019，44(3):116-119. (in Chinese)
[13］姚琳，马大为，任杰，等.无杆式气缸弹射装置内弹道仿真与优化设计[J].振动与冲击，2017，36(6):122-127.
YAO L，MA D W，REN J，et al. Internal ballistics simulation on and improving of rod-less cylinder cold launching device[J].Journal of Vibration and Shock，2017，36(6):122-127.(in Chinese)
[14］杜尧.开口缸气动弹射装置动力学分析与优化[D].南京:南京理工大学，2018.
DU Y.Dynamic analysis and optimization of pneumatic ejection device with open cylinder[D].Nanjing:Nanjing University of Science and Technology，2018. (in Chinese)
[15］赵雁鹏，王学智，刘少伟，等.垂直弹射系统弹射初始阶段内流场数值分析[J].空军工程大学学报（自然科学版），2014,15(4): 5-8.
ZHAO Y P，WANG X Z，LIU S W，et al.A numerical analysis for the initial stage inner flow field in vertical ejection system[J].Journal of Air Force Engineering University(Natural Science Edtion)，2014,15(4):5-8.(in Chinese)
[16］范奥博.基于压缩空气弹射的单兵筒式武器研究[D].郑州:郑州大学，2019.
FAN A B.Research on individual tube-shape weapon based on compressed air ejection[D].Zhengzhou:Zhengzhou University，2019.(in Chinese)
[17］徐张宝.高压气动弹射过程控制研究[D].南京:南京理工大学，2018.
XU Z B.Research on process control of high pressure pneumatic ejection[D].Nanjing:Nanjing University of Science and Technology，2018.(in Chinese)
[18］杨风波，马大为，杨帆，等.高压弹射装置内弹道建模与计算[J].兵工学报，2013，34(5):527-534.
YANG F B，MA D W，YANG F，et al.Interior ballistics modeling and calculation of high-pressure ejection device[J].Acta Armamentarii，2013，34(5):527-534.(in Chinese)
[19］ THAKRE A，HAARDT M，GIRIDHAR K. Single snapshot spatial smoothing with improved effective array aperture[J].IEEE Signal Processing Letters，2009，16(6):505-508.
[20］谭大成.弹射内弹道学[M].北京:北京理工大学出版社，2015.
TAN D C.Interior ballistics of catapults[M]. Beijing: Beijing Institute of Technology Press，2015.(in Chinese)

第42卷第12期2021 年12月
兵工学报ACTA ARMAMENTARII
Vol.42No.12Dec. 2021

[1]	柳忠彬，肖守讷，王欢. 非爆破柔性气缸弹射器研究[J]. 兵工学报, 2017, 38(2): 389-395.
[2]	练永庆，王树宗，陈ー雕. 气动式水下发射器的发射阀仿真设计研究[J]. 兵工学报, 2003, 24(3): 354-358.