To study the influence of gun ablative wear on interior ballistic performance,the classical interior ballistic model and gun ablative model were built based on the theory of ablative wear. The numerical simulation on gun was carried out,and the starting pressure variation law under different wear conditions agreed with the experimental results. On this basis,the influence of multi-parameter variation on artillery interior ballistic performance was numerically analyzed. The results show that barrel erosion wear will lead to the decreasement of projectile velocity and the gun pressure. With the increase of charge,the relative muzzle velocity reduction decreases as the barrel wear increases.After increasing the gunpowder power,the relative muzzle velocity reduction increases as the wear increases. Under the condition of full charge,when the number of projectile reaches about 420 rounds,the muzzle velocity drops by 7.53% compared to the new gun,reaching the barrel scrap standard,at which time the barrel is scrapped.
Key words
gun /
internal ballistics /
ablative wear /
barrel life
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References
[1] CAVENY L H. Steel erosion produced by double base,triple base and RDX composite propellants of various flame temperatures[R]. US:Army Armanment Research and Development Command,1980.
[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.
ZHANG Xifa,LU Xinghua. Interior ballistics of erosion guns[M]. Beijing:National Defense Industry Press,2001.(in Chinese)
[3]金文奇,宁金贵,王剑,等. 基于全膛烧蚀磨损特征的火炮内弹道仿真研究[J]. 兵工学报,2019,40(5):968-977.
JIN Wenqi,NING Jingui,WANG Jian,et al. Simulation research of interior ballistics based on erosion wear characteristic of full-bore[J]. Acta Armamentarii,2019,40(5):968-977.(in Chinese)
[4]陈国利,韩海波,于东鹏. BP神经网络的身管寿命预测方法[J]. 火力与指挥控制,2008,09):146-148.
CHEN Guoli,HAN Haibo,YU Dongpeng. Study on prediciont method of barrel life based on bp neural network[J]. Fire Control and Command Control,2008,33(9):146-148.(in Chinese)
[5]朱喜华,李颖晖,王群力,等. 基于随机Wiener过程的火炮身管剩余寿命预测[J]. 科学技术与工程,2021,21(5):1802-1805.
ZHU Xihua,LI Yinghui,WANG Qunli,et al. Residual lifetime prediciont for gun barrel based on wiener process with random effect[J],Science Technology and Engineering,2021,21(5):1802-1805.(in Chinese)
[6]肖建光,郑元枫,郭张霞,等. 齐射型多管火炮内弹道性能仿真[J]. 兵器装备工程学报,2017,38(12):1-5.
XIAO Jianguang,ZHENG Yuanfeng,GUO Zhangxia,et al. Simulation of interior ballistci performance for multiple-volley gun[J]. Journal of Ordnance Equipment Engineering,2071,38(12):1-5.(in Chinese)
[7]田桂军. 内膛烧蚀磨损及其对内弹道性能影响的研究[D]. 南京:南京理工大学,2003.
TIAN Guijun. Researches on the wear and erosion of bore and its influence to interior ballistic performance[D]. Nanjing:Nanjing University of Science and Technology,2003.(in Chinese)
[8]梁文凯. 身管烧蚀磨损问题的分析与研究[D]. 南京:南京理工大学,2015.
LIANG Wenkai. Analysis and research on ablative wear of tube[D]. Nanjing:Nanjing University of Science and Technology,2015.(in Chinese)
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