基于光滑粒子法的某大口径火炮不同膛线弹丸挤进过程研究

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (24) : 75-81.

论文

郭俊行，刘琦，丁宏民，徐坚，孙玉杰

作者信息 +

A study on rotating band engraving process for large caliber gun projectile with different rifles

GUO Junhang，LIU Qi，DING Hongmin，XU Jian，SUN Yujie

Author information +

文章历史 +

摘要

为研究某大口径火炮采用不同膛线形式对弹丸挤进过程的影响，使用光滑粒子法建立了某模块装药全装药条件下弹带挤进过程模型，仿真得到了弹丸位移、速度、加速度、挤进阻力和导转力矩，分析了膛线起始缠角对挤进阻力和导转力矩的影响。仿真得到了挤进过程中等效应力、等效塑性应变、温度和损伤变量的分布。通过二次开发编程统计了弹带材料的等效应力、应力三轴度、罗德参数、等效塑性应变、温度和损伤变量的分布，揭示了挤进过程的塑性变形机理。开发了新的后处理程序得到了弹带多个截面的场变量分布，分析了等效应力、应力三轴度、罗德参数、等效塑性应变、温度和损伤变量的分布规律，得到了膛线缠角对挤进过程的影响。

Abstract

Abstract: In order to research the effect of rifle twist angle on projectile engraving process of a large caliber gun, the numerical models for projectile engraving process under modular charge has been proposed based on smoothed particle hydrodynamics. The displacement, velocity, acceleration, resistance force and moment of projectile were obtained by simulations. The effect of twist angle on resistance force and driving moment were analyzed. The deformation process, equivalent stress, equivalent plastic strain, temperature and damage variable distribution of rotating band are obtained by numerical simulation. The frequency distribution of particles was get by particular variables such as equivalent stress, stress triaxiality, Lode parameter, equivalent plastic strain, temperature and damage variable, and the results show that large plastic deformation occurrences. By developing a new post program, the field variables distribution on specified sections were get and analyzed, the effects of initial twist angle on engraving process were obtained.

导出引用

郭俊行，刘琦，丁宏民，徐坚，孙玉杰. 基于光滑粒子法的某大口径火炮不同膛线弹丸挤进过程研究[J]. 振动与冲击, 2021, 40(24): 75-81

GUO Junhang，LIU Qi，DING Hongmin，XU Jian，SUN Yujie. A study on rotating band engraving process for large caliber gun projectile with different rifles[J]. Journal of Vibration and Shock, 2021, 40(24): 75-81

参考文献

[1] 钱林方. 火炮弹道学[M].北京: 北京理工大学出版社, 2009:163-178．
QIAN Lin-fang. The artillery ballistics[M]. Beijing: Beijing Institute of Technology Press, 2009:163-178 (in Chinese).
[2] 孙全兆,杨国来,王鹏,等.某大口径榴弹炮弹带挤进过程数值模拟研究[J].兵工学报,2015,36(2):206-213.
SUN Quan-zhao, YANG Guo-lai, WANG Peng, et al. Numerical research on rotating band engraving process of a large-caliber howitzer[J]. Acta Armamentarii,2015,36(2):206-213.(in Chinese)
[3] 王鹏,杨国来,葛建立,等.基于Johnson-Cook本构模型的弹带挤进过程数值模拟[J].弹道学报,2015,27(2):55-61.
WAND Peng, YANU Guo-lai, GE Jian-li, et al. Numerical simulation of rotating band engraving process based on Johnson-Cook constitutive model[J]. Journal of Ballistics,2015,27(2):55-61. (in Chinese)
[4] 马明迪,崔万善,曾志银,等.基于有限元与光滑粒子耦合的弹丸挤进过程分析[J].振动与冲击,2015,34(6):146-150.
MA Ming-di, CUI Wan-shan, ZENG Zhiyin, et al. Engraving process analysis of projectiles based on coupling of FEM and SPH[J]. Journal of vibration and shock,2015,34(6):146-150. (in Chinese)
[5] 马明迪, 崔万善, 曾志银,等. 大口径火炮弹丸挤进过程坡膛动力响应分析[J].中北大学学报(自然科学版), 2014, 35(3):263-269.
MA Ming-di，CUI Wan-shan，ZENG Zhi-yin，et al. Dynamic Response Analysis of Chamber Throat in the Engraving Process of Heavy Caliber Gun Projectile[J], Journal of North University of China(Natural Science Edition),2014,35(3):263-269.(in Chinese)
[6] 王亮宽,刘毅,周宇,等. 软铁弹带挤进过程数值模拟[J].火炮发射与控制学报,2018,39(4)50-53+59.
WANG Liang-kuan, Liu Yi, Zhou Yu, et al. Numerical Simulation of the Engraving Process of Pure Iron Rotating Band [J].Journal of Gun Launch & Control, 2018,39(4):50-53+59. (in Chinese)
[7] 孙玉杰,崔青春,丁宏民,等. SPH-FEM 耦合方法在弹丸膛内运动中的应用[J].振动与冲击, 2019,38(8):166-172+187.
Sun Yu-jie, Cui Qing-chun, Ding Hong-min, et al. Application of a three-dimensional FEM-SPH coupling method to projectile motion in a bore[J]. Journal of vibration and shock, 2019,38(8): 166-172+187. (in Chinese)
[8] 庄茁.连续体和结构的非线性有限元[M].北京:清华大学出版社. 2002.
ZHUANG Zhuo. Nonlinear Finite Elements for Continua and Structures[M].Beijing: Tsinghua University Press,2002.(in Chinese)
[9] G.R. Liu, M.B. Liu, Shaofan Li. Smoothed particle hydrodynamics: a mesh-free particle method[J], Computational Mechanics, 33(6):491-491
[10] Luca Massidda, Yacine Kadi. SPH simulation of liquid metal target dynamics[J]. Nuclear Engineering and Design, 2010, 240(5): 940–946.
[11] Johnson G R , Cook W H . A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures[J]. Engineering Fracture Mechanics, 1983,21 (1):541-548.
[12] Johnson GR, Cook WH. Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures. Engineering Fracture Mechanics, 1985, 21 (1): 31-48.
[13] Bai, Y., T. Wierzbicki. A new model of metal plasticity and fracture with pressure and Lode dependence. International Journal of Plasticity, 2008. 24(6): 1071-1096.
[14] K. Nahshon, J.W. Hutchinson. Modification of the Gurson Model for shear failure[J]. European Journal of Mechanics - A/Solids, 2008, 27(1): 1-17.
[15] Ken Nahshon, Zhenyu Xue. A modified Gurson model and its application to punch-out experiments[J]. Engineering Fracture Mechanics, 2009, 76(8): 997-1009.
[16] 孙全兆.大口径榴弹炮弹带挤进动力学研究[D]. 南京: 南京理工大学,2015.10.
SUN Quan-zhao. Study on Dynamics of rotating band engraving for large-caliber howitzer[D]. Nanjing: Nanjing University of Science and Technology. 2015.10. (in Chinese)