某臂式输弹机卡膛精度与卡膛力研究
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摘要
为保证半自动输弹机卡膛一致性、提高火炮装填精度,考虑弹丸卡膛过程的卡膛初速度、弹丸卡膛阻力等方面的因素,建立弹丸卡膛的动力学模型,定量分析卡膛速度、弹丸的卡膛阻力、弹带的挤压变形、阻尼系数等对弹丸卡膛一致性的影响,并进行试验验证。结果表明:不同卡膛初速下,弹丸的卡膛时间基本保持一致,卡膛位移随卡膛初速的增加而增大;试验结果验证了理论计算的正确性,得到弹丸卡膛位移与卡膛力的关系,以及最优的卡膛初速度范围;很好地解决某输弹机卡膛一致性的问题。
To quarantee the consistency of bayonet-chamber of semi-automatic rammer,and improve gun's loading precision,the dynamic model was established in consideration of the initial velocity,resistance and other factors in the process of bayonetchamber of projectile. The effects of initial velocity,the extrusion deformation of bearing band,damping coefficient on the cosistency were analyzed using quantitative methods. Verification test was done. The calculation results indicate that at the different initial velocity,the bayonet-chamber time is basically consistent,and the displacement of bayonet-chamber increases with the increase of initial velocity. The trials results verify the correctness of calculation,and the relationship of displacement with force and the optimal range of initial speed is obtained. The problem of the consistency of bayonet-chamber is solved.
To quarantee the consistency of bayonet-chamber of semi-automatic rammer,and improve gun's loading precision,the dynamic model was established in consideration of the initial velocity,resistance and other factors in the process of bayonetchamber of projectile. The effects of initial velocity,the extrusion deformation of bearing band,damping coefficient on the cosistency were analyzed using quantitative methods. Verification test was done. The calculation results indicate that at the different initial velocity,the bayonet-chamber time is basically consistent,and the displacement of bayonet-chamber increases with the increase of initial velocity. The trials results verify the correctness of calculation,and the relationship of displacement with force and the optimal range of initial speed is obtained. The problem of the consistency of bayonet-chamber is solved.
引文
[1]梁辉,马春茂,潘江峰,等.大口径火炮弹药自动装填系统研发现状和趋势[J].火炮发射与控制学报,2010(9):103-107.
[2]张喜发,卢兴华.火炮烧蚀内弹道学[M].北京:国防工业出版社,2001:43-71.
[3]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.
[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(5):592-594.
[5]李伟,马吉胜,孙河阳,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.
[6]石海军,钱林芳,徐亚栋,等.火炮卡膛一致性问题研究[J].弹道学报,2012,24(4):77-81.
[7]金志明,曾思敏.弹丸挤进过程的计算与研究[J].兵工学报,1991(1):7-13.
[8]冯端,王业宁,等.金属物理(下册)[M].北京:科学出版社,1975:554-622.
[2]张喜发,卢兴华.火炮烧蚀内弹道学[M].北京:国防工业出版社,2001:43-71.
[3]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.
[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(5):592-594.
[5]李伟,马吉胜,孙河阳,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.
[6]石海军,钱林芳,徐亚栋,等.火炮卡膛一致性问题研究[J].弹道学报,2012,24(4):77-81.
[7]金志明,曾思敏.弹丸挤进过程的计算与研究[J].兵工学报,1991(1):7-13.
[8]冯端,王业宁,等.金属物理(下册)[M].北京:科学出版社,1975:554-622.