串联随进弹侵彻预开孔靶弹道轨迹的数值模拟

doi:10.3969/j.issn.1000-1093.2016.05.006

摘要/Abstract

摘要： 利用移动载荷自定义程序的弹-靶分离方法，并结合Forrestal半经验靶体阻力函数，开展了串联随进弹侵彻预开孔靶弹道轨迹数值模拟。在实验验证计算模型及自定义程序可靠的基础上，研究弹-靶轴偏置、倾角、攻角等对串联随进弹侵彻弹道轨迹的影响规律。研究结果表明：弹-靶轴偏置、倾角、攻角等因素对弹体的弹道轨迹及侵彻深度影响显著；预开孔孔道具有一定的引导侵彻作用；在弹-靶轴偏置、倾角及攻角的共同影响下，随进弹侵彻预开孔靶存在着跳飞可能。

关键词: 兵器科学与技术, 弹道轨迹, 预开孔靶, 弹-靶分离方法, 数值模拟

Abstract: Based on projectile-target separation method，numerical simulation method of 3D deformable travelling projectile penetrating into a pre-drilled target is proposed by using Forrestal semi-empirical resistance via user subroutine of ABAQUS. The reliability of user subroutine and simulation model is verified. The influences of offsetting, incidence angle and angle of attack on trajectory are analyzed. The results show that any influence factor affects the trajectory and penetration depth. The pre-drilled hole on target has significant oriented effect for the penetration of travelling projectile. Under the combined influence of offsetting, incidence angle and angle of attack, the pre-drilled hole on target has limitation in oriented function and a ricochet may occur under the condition of extreme impact.

Key words: ordnance science and technology, trajectory, pre-drilled target, projectile-target separation method, numerical simulation

中图分类号:

O385

邓佳杰, 张先锋, 陈东东, 郭磊, 何勇. 串联随进弹侵彻预开孔靶弹道轨迹的数值模拟[J]. 兵工学报, 2016, 37(5): 808-816.

DENG Jia-jie, ZHANG Xian-feng, CHEN Dong-dong, GUO Lei, HE Yong. Numerical Simulation of the Trajectory of Travelling Projectile Penetrating into Pre-drilled Target[J]. Acta Armamentarii, 2016, 37(5): 808-816.

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