枪身缓冲器对车载转管机枪后坐力影响分析
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摘要
为研究车载转管机枪后坐力变化规律,依据内弹道理论建立三管12.7 mm转管机枪内弹道数学模型,运用V B编写程序得到枪管膛压曲线;应用刚柔耦合系统动力学理论建立车载转管机枪武器系统虚拟样机,依次分析枪身与架座之间分别采用有预压力双向缓冲器、有预压力单向缓冲器、无预压力双向缓冲器3种连接方式对后坐力、机匣前冲与后坐位移的影响。结果表明,有预压力双向缓冲器可有效降低并快速衰减后坐力。
In order to study the changing law of the recoiling force variation of the vehicular gatling gun,the mathematic model of three-tube 12.7 mm vehicular gatling gun internal ballistic trajectory is built according to the theory of internal ballistics,and the gun barrel pressure curve is obtained by using VB programming. The rigid-flexible coupling system dynamics theory to build the virtual prototype of the vehicular gatling gun weapon system is used. Then the effect of using pre-pressure bi-directional buffer,one-way buffer with pre-pressure and two-way buffer without pre-pressure in barrel and frame on recoil,box forward stroke and recoil displacement are analysed. The results show that the bi-directional buffer with pre-pressure can effectively and rapidly reduce the recoil force and launch steadily,an effective technical method and reference for the research on vehicular gatling gun weapon system is provided.
In order to study the changing law of the recoiling force variation of the vehicular gatling gun,the mathematic model of three-tube 12.7 mm vehicular gatling gun internal ballistic trajectory is built according to the theory of internal ballistics,and the gun barrel pressure curve is obtained by using VB programming. The rigid-flexible coupling system dynamics theory to build the virtual prototype of the vehicular gatling gun weapon system is used. Then the effect of using pre-pressure bi-directional buffer,one-way buffer with pre-pressure and two-way buffer without pre-pressure in barrel and frame on recoil,box forward stroke and recoil displacement are analysed. The results show that the bi-directional buffer with pre-pressure can effectively and rapidly reduce the recoil force and launch steadily,an effective technical method and reference for the research on vehicular gatling gun weapon system is provided.
引文
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[2]化斌斌,王瑞林,李永建,等.转管机枪枪架多目标优化及其对射击精度影响研究[J].振动与冲击,2016,35(23):197-202.
[3]徐宁,吴永海,王永娟,等.基于铬层与基体结合部疲劳损伤的转管机枪身管寿命预测研究[J].兵工学报,2016,37(10):1926-1933.
[4]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.
[5]王惠源,黄建业,张成卿.基于CFD的转管机枪助旋制退器流场超压仿真及对弹丸初速影响分析[J].弹道学报,2016,28(1):26-32.
[6]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.
[7]郝鑫,王建中,施家栋,等.活塞式高低压发射系统的膛内流场仿真分析与实验[J].北京理工大学学报,2013,33(10):1005-1009.
[8]李晓彤,王惠源,李忠贤,等.7.62mm双管转膛高射速机枪设计方案研究[J].火炮发射与控制学报,2015,36(3):44-48.
[9]杜振宇,王学智,程永强.车载导弹刚柔耦合系统发射过程仿真分析[J].弹箭与制导学报,2017,37(1):9-12.
[10]王惠方,任杰,代波,等.某型多管火箭炮射击间隔优化研究[J].火力与指挥控制,2016,41(2):104-107.
[11]徐亮.某转管机枪建模仿真分析.[D]南京:南京理工大学,2010.