喷管高效膛口制退器对机枪射击性能的影响
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摘要
在半开腔膛口制退器基础上进行改进,提出喷管高效膛口制退器的概念,在半开腔膛口制退器两侧引出可水平向后的拉瓦尔喷管,利用火药燃气通过喷管气流的反推作用达到减后坐效果,通过编程进行内弹道计算。运用刚柔耦合动力学理论,对安装喷管高效膛口制退器车载转管机枪系统建立动力学模型,进行动力学仿真计算。计算结果表明,安装喷管高效膛口制退器后,机枪后坐力、后坐位移、膛口角位移和弹丸出膛口时角位移均得到减小,提高了机枪的射击性能。
Base on the half-open muzzle brake,a nozzle high-efficiency muzzle brake is designed.Draw out the level backwards Laval nozzle on two sides of the half-open muzzle brake,and use the high-pressure gas in chamber to achieve low recoil force,and compute interior ballistic trajectory.Base on the rigid-flexible coupling dynamic theory,the dynamic model of vehicle Gatling gun with nozzle high efficiency muzzle brake are made,and the numerical simulation is computed.The results show that the firing performance of gun system is improved when the recoil force,recoil displacement,muzzle angular displacement and projectile displacement decrease.
Base on the half-open muzzle brake,a nozzle high-efficiency muzzle brake is designed.Draw out the level backwards Laval nozzle on two sides of the half-open muzzle brake,and use the high-pressure gas in chamber to achieve low recoil force,and compute interior ballistic trajectory.Base on the rigid-flexible coupling dynamic theory,the dynamic model of vehicle Gatling gun with nozzle high efficiency muzzle brake are made,and the numerical simulation is computed.The results show that the firing performance of gun system is improved when the recoil force,recoil displacement,muzzle angular displacement and projectile displacement decrease.
引文
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[11]李仲兴,郭子权,王传建.越野车用两级压力式油气弹簧的建模与仿真[J].振动、测试与诊断,2017,37(3):512-517.Li Zhongxing,Guo Ziquan,Wang Chuanjian,et al.Modeling and simulating of a two-stage pressure hydro-pneumatic spring for off-road vehicle[J].Journal of Vibration,Measurement&Diagnosis,2017,37(3):512-517.(in Chinese)
[12]芮筱亭.多体系统发射动力学进展与应用[J].振动、测试与诊断,2017,37(2):214-220.Rui Xiaoting.New developments in launch dynamics of multibody system and its applications[J].Journal of Vibration,Measurement&Diagnosis,2017,37(2):214-220.(in Chinese)
[13]廖爱华,黄旭,方宇.基于刚柔祸合的轨道车辆转向架构架疲劳分析[J].振动、测试与诊断,2017,37(2):392-397.Liao Aihua,Huang Xu,Fang Yu.Fatigue analysis for bogie frame based on rigid-flexible coupling simulation[J].Journal of Vibration,Measurement&Diagnosis,2017,37(2):392-397.(in Chinese)
[2]张月林.火炮反后坐装置设计[M].北京:国防工业出版社,1984:4-6.
[3]陆野,周克栋,赫雷,等.膛口制退器效率对某新型全枪浮动原理大口径机枪的影响研究[J].兵工学报,2016,37(9):1585-1591.Lu Ye,Zhou Kedong,He Lei,et al.Research on influence of muzzle brake efficiency on a new large caliber machine gun based on floating principle[J].Acta Armamentaria,2016,37(9):1585-1591.(in Chinese)
[4]李佳圣,廖振强,宋杰,等.膛口制退效能对转管机枪射击密集度影响研究[J].兵工学报,2013,34(10):1215-1220.Li Jiasheng,Liao Zhenqiang,Song Jie,et al.Research on influence of muzzle brake efficiency on firing density of gatling gun[J].Acta Armamentaria,2013,34(10):1215-1220.(in Chinese)
[5]翁春生.计算内弹道学[M].北京:国防工业出版社,2006:103-110.
[6]陈杨,廖振强,刘国鑫,等.两种拉瓦尔喷管减后坐结构效能对比分析[J].弹道学报,2008,20(4):88-91.Chen Yang,Liao Zhenqiang,Liu Guoxin,et al.Performance comparison of two recoilless structures with Laval nozzles[J].Journal of Ballistics,2008,20(4):88-91.(in Chinese)
[7]李佳圣,邱明,廖振强,等.带膛口助旋制退器的转管机枪动力学建模与仿真[J].兵工学报,2014,35(9):1344-1349.Li Jiasheng,Qiu Ming,Liao Zhenqiang,et al.Dynamic modeling and simulation of gatling gun with muzzle assistant-rotating and recoil absorber[J].Acta Armamentaria,2014,35(9):1344-1349.(in Chinese)
[8]张帆,廖振强,刘国鑫,等.基于两相流理论的膨胀波枪炮内弹道机理[J].弹道学报,2007,19(4):9-12.Zhang Fan,Liao Zhenqiang,Liu Guoxin,et al.Interior ballistic study on rarefaction wave gun based on theory of two-phase flow[J].Journal of Ballistics,2007,19(4):9-12.(in Chinese)
[9]咸东鹏,廖振强,李佳圣,等.自动武器喷管减后坐实验研究[J].南京理工大学学报:自然科学版,2013,37(1):107-111.Xian Dongpeng,Liao Zhenqiang,Li Jiashen,et al.Experimental study of recoil reduction by reverse jet gas for automatic weapon[J].Journal of Nanjing University of Science and Technology:Nature Science,2013,37(1):107-111.(in Chinese)
[10]宋杰,廖振强,李佳圣,等.导气与枪管浮动混合式自动机自动机动力学特性研究[J].兵工学报,2014,35(6):753-761.Song Jie,Liao Zhenqiang,Li Jiasheng,et al.Dynamics characteristics of automatic mechanism for gas operated and floating barrel operated automatic action[J].Acta Armamentaria,2014,35(6):753-761.(in Chinese)
[11]李仲兴,郭子权,王传建.越野车用两级压力式油气弹簧的建模与仿真[J].振动、测试与诊断,2017,37(3):512-517.Li Zhongxing,Guo Ziquan,Wang Chuanjian,et al.Modeling and simulating of a two-stage pressure hydro-pneumatic spring for off-road vehicle[J].Journal of Vibration,Measurement&Diagnosis,2017,37(3):512-517.(in Chinese)
[12]芮筱亭.多体系统发射动力学进展与应用[J].振动、测试与诊断,2017,37(2):214-220.Rui Xiaoting.New developments in launch dynamics of multibody system and its applications[J].Journal of Vibration,Measurement&Diagnosis,2017,37(2):214-220.(in Chinese)
[13]廖爱华,黄旭,方宇.基于刚柔祸合的轨道车辆转向架构架疲劳分析[J].振动、测试与诊断,2017,37(2):392-397.Liao Aihua,Huang Xu,Fang Yu.Fatigue analysis for bogie frame based on rigid-flexible coupling simulation[J].Journal of Vibration,Measurement&Diagnosis,2017,37(2):392-397.(in Chinese)