摘要
为研究弹体侵彻多层间隔靶的弹道稳定性问题,设计了钢筋混凝土多层间隔靶,开展了弹体斜侵彻实验,通过高速摄影运动分析系统,得到了弹体侵彻多层靶过程的弹道变化参数.采用LS-DYNA软件,再现了弹体侵彻多层靶实验过程,得到的弹道变化参数与实验结果吻合较好,验证了本构模型的可靠性.同时,数值模拟研究了不同半锥角对尾裙弹体侵彻多层靶稳定性的影响规律,得到了弹道稳定的尾裙弹体最优半锥角.
To investigate the trajectory stability of projectile penetrating into multi-thin-layered space structure concrete targets,the multi-layered space structural concrete targets with reinforcement and experiment of a projectile oblique penetration were designed.By using a highspeed movement photography system,the trajectory parameters in the process of projectile penetrating the targets was got.A simulation software LS-DYNA was used to reproduce the process of experiment.The simulation results show that,the trajectory parameters are consistent with that of experimental test,verifying its reliability.Meanwhile,the rules that effect on trajectory stability when projectile penetrated the targets with different half-cone angle were obtained,and the optimal half-cone angle of trajectory stability was confirmed.
引文
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