烧蚀磨损对某大口径自行加榴炮动态响应的影响

为提高大口径自行加榴炮身管寿命和射击精度等总体关键性能指标,以反后坐装置全对称布置且混合膛线的某大口径自行加榴炮为例,研究了火炮身管烧蚀磨损对火炮动态响应的影响.在对内膛测径数据分析的基础上提出了烧蚀身管建模方法.建立了不同烧蚀状态身管有限元模型,在此基础上进行了数值仿真,得到了膛内时期火炮的动态响应,以及膛内时期弹丸...

Effect of Bore Erosion on Dynamic Response of Large-caliber Self-propelled Gun-howitzer

To improve the key indices such as barrel life and fire accuracy of large-caliber self-propelled gun-howitzer,the large-caliber self-propelled gun-howitzer with symmetrical counterrecoil mechanism and combined rifling was taken for example,and the effect of erosion on dynamic response of gun was studied.A modeling method for erosion barrel was proposed by investigating the bore erosion data.Finite element models were established for erosion barrels.The dynamic response of gun fire system in interior bore period was obtained by simulation,including rotating moment,contact force on projectile and gun muzzle vibration.The effect of erosion on gun dynamic response was researched.The results show that erosion effects gun dynamic response,contact force on projectile and muzzle vibration velocity increase with erosion,while erosion has little effect on muzzle vibration displacement.The results offer theoretical reference for the overall structure design of gun systems.