狙击步枪弹/枪相互作用数值研究

刘国庆,徐诚,丁传俊

振动与冲击 ›› 2017, Vol. 36 ›› Issue (19) : 1-7.

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PDF(2475 KB)
振动与冲击 ›› 2017, Vol. 36 ›› Issue (19) : 1-7.
论文

狙击步枪弹/枪相互作用数值研究

  • 刘国庆,徐诚,丁传俊
作者信息 +

The Study of Numerical Calculation of Interaction between Bullet and Sniper Rifle

  • Liu Guo-Qing,Xu Cheng,Ding Chuan-Jun
Author information +
文章历史 +

摘要

为深入研究弹头膛内发射过程,基于非线性有限元理论建立了弹/枪相互作用数值计算模型。模型将内弹道计算与弹头发射过程有限元计算相耦合,真实的反映了膛压生成与弹头膛内运动之间的耦合关系;模型考虑了弹头挤进过程,将挤进过程与后续内弹道过程相结合,保持了内弹道过程的完整性;模型考虑了枪管在重力作用下的预弯曲现象,是一个较为完善的求解弹头发射过程理论模型;通过对比试验结果与仿真结果证明了模型的正确性。借助该模型对弹头膛内发射过程进行了数值计算,获得了弹头受力、应力/应变分布、有无重力作用下的枪口振动情况与弹头膛内摆动情况,揭示了弹/枪相互作用机理。

Abstract

The numerical calculation model of interaction between bullet and sniper rifle was established to deeply study launch process of bullet, which is based on nonlinear finite element theory. The model coupled calculation program of bore pressure and numerical calculation of the launch process, which can reflect the real relation between bore pressure and bullet motion. Engraving process and the subsequent ballistic process were combined in this model to ensure integrity of internal ballistic. The barrel pre-bent condition which is caused by gravity is also considered. The model was a comprehensive consideration theory model to calculate launch process,the accuracy was proved by comparing experiment and calculation results. The force conditions, stress-strain, swing angle of bullet and vibration of muzzle under the gravity field was obtained by calculation, which revealed interaction mechanism of bullet-rifle.
 

关键词

狙击步枪 / 相互作用 / 数值模型 / 挤进过程 / 耦合计算 / 重力作用

Key words

sniper rifle / interaction / numerical model / engraving process / coupling calculation / gravity action

引用本文

导出引用
刘国庆,徐诚,丁传俊. 狙击步枪弹/枪相互作用数值研究[J]. 振动与冲击, 2017, 36(19): 1-7
Liu Guo-Qing,Xu Cheng,Ding Chuan-Jun. The Study of Numerical Calculation of Interaction between Bullet and Sniper Rifle[J]. Journal of Vibration and Shock, 2017, 36(19): 1-7

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