火炮卡膛一致性问题研究
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摘要
为了分析火炮输弹过程对弹丸卡膛一致性的影响,研究了整个输弹过程.通过考虑输弹过程中的输弹力、卡膛速度、弹丸入膛过程中与身管内壁的接触碰撞等方面因素,建立了卡膛过程的动力学模型,对输弹力、弹丸与身管的间隙及接触碰撞对卡膛一致性的影响进行了分析和定量研究.分析结果表明,采用恒力输弹方式、弹丸与身管间的间隙及其接触碰撞的存在必然降低高低射界内不同射角弹丸的卡膛一致性,而采用变力输弹方式和降低输弹机安装位置等措施可以有效改善弹丸的卡膛一致性.
In order to analyze the effect of ammunition ramming on the consistency of bayonet-chamber of gun,the whole process of ammunition ramming was studied.Considering the force of ammunition ramming,the velocity of ammunition ramming bayonet-chamber and contact-impact between projectile and barrel in the process of ammunition ramming,the dynamic model of ammunition ramming bayonet-chamber was constructed.The effects of the force of ammunition ramming,gap and contact-impact between projectile and barrel on the consistency of bayonet-chamber were analyzed and quantitatively studied.The results show that the consistency of bayonet-chamber is degraded while adopting "unchangeable force" ammunition ramming and gap and contact-impact between projectile and barrel existing.It can improve the consistency of ammunition ramming bayonet-chamber effectively to adopt variable-fore ammunition ramming and to lower the location of rammer.
In order to analyze the effect of ammunition ramming on the consistency of bayonet-chamber of gun,the whole process of ammunition ramming was studied.Considering the force of ammunition ramming,the velocity of ammunition ramming bayonet-chamber and contact-impact between projectile and barrel in the process of ammunition ramming,the dynamic model of ammunition ramming bayonet-chamber was constructed.The effects of the force of ammunition ramming,gap and contact-impact between projectile and barrel on the consistency of bayonet-chamber were analyzed and quantitatively studied.The results show that the consistency of bayonet-chamber is degraded while adopting "unchangeable force" ammunition ramming and gap and contact-impact between projectile and barrel existing.It can improve the consistency of ammunition ramming bayonet-chamber effectively to adopt variable-fore ammunition ramming and to lower the location of rammer.
引文
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[5]李伟,马吉胜,孙河洋,等.弹丸惯性卡膛冲击问题动力学研究[J].振动与冲击,2011,30(5):161-163.LI Wei,MA Ji-sheng,SUN He-yang,et al.Dynamic analysisfor inertial bayonet-chamber process of a projectile[J].Journalof Vibration and Shock,2011,30(5):161-163.(in Chinese)
[2]张振山,吴永峰.炮管内膛烧蚀磨损现象的分析[J].装甲兵工程学院学报,2003,17(2):67-70.ZHANG Zhen-shan,WU Yong-feng.Analysis of rubbing abra-sion and erosion on the barrel bore[J].Journal of Academy ofArmored Force Engineering,2003,17(2):67-70.(in Chinese)
[3]张喜发,卢兴华.火炮烧蚀内弹道学[M].北京:国防工业出版社,2001.ZHANG Xi-fa,LU Xing-hua.Ablation interior ballistics of ar-tillery[M].Beijing:National Defense Industry Press,2001.(inChinese)
[4]赵森,钱勇.自行火炮半自动装填机构输弹问题研究[J].兵工学报,2005,26(5):592-594.ZHAO Sen,QIAN Yong.Ammunition ramming of semi-auto-matic loading device of the self-propelled gun[J].Acta Arma-mentarii,2005,26(5):592-594.(in Chinese)
[5]李伟,马吉胜,孙河洋,等.弹丸惯性卡膛冲击问题动力学研究[J].振动与冲击,2011,30(5):161-163.LI Wei,MA Ji-sheng,SUN He-yang,et al.Dynamic analysisfor inertial bayonet-chamber process of a projectile[J].Journalof Vibration and Shock,2011,30(5):161-163.(in Chinese)