横向效应增强型弹垂直侵彻薄靶的轴向剩余速度理论分析
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摘要
为了得到横向效应增强型弹(Penetration with Enhanced Lateral Efficiency projectile,PELE)对金属薄靶垂直侵彻后的弹体轴向剩余速度,运用平面冲击波理论,对PELE的侵彻机理进行分析。参照平头弹体对靶板的侵彻模型,将PELE侵彻过程中的能量损失划分为以下几个部分:外壳体和内芯撞靶区域对应的环形塞块获得的能量、冲击波作用下弹体的内能增量以及剪切耗能等。然后根据能量守恒原理,得到PELE垂直侵彻金属薄靶后的PELE弹体轴向剩余速度的理论模型。为了验证该模型的合理性和准确性,设计相应的试验进行验证。结果表明,不同条件下得到的试验结果和理论模型得到的计算结果均吻合得较好。因此,得到的PELE垂直侵彻薄靶的轴向剩余速度理论模型可为工程应用提供指导和参考。
In order to obtain the theoretical model of the axial residual velocity of PELE(penetration with enhanced lateral efficiency projectile) under the condition of vertical penetration,the plane shock wave theory was used to analyze the mechanism of PELE vertical penetrating metal thin target.According to the penetration model of the flat head projectile,the energy loss during the penetration of PELE was divided into the following parts:the energy obtained by the annular plug block corresponded to the outer shell and the inner core,the increased internal energy of the outer casing and inner core,the shear energy dissipated in the outer casing.Based on the principle of energy conservation,the theoretical model of axial residual velocity after PELE vertical penetrating thin metal targets was obtained.To verify the rationality and accuracy of the theoretical model,the corresponding experiments were designed to verify the results.The results show that the calculated results coincide well with the experimental results under different conditions.Therefore,the theoretical model of axial residual velocity of PELE vertical penetrating thin target can provide guidance and reference for engineering application.
In order to obtain the theoretical model of the axial residual velocity of PELE(penetration with enhanced lateral efficiency projectile) under the condition of vertical penetration,the plane shock wave theory was used to analyze the mechanism of PELE vertical penetrating metal thin target.According to the penetration model of the flat head projectile,the energy loss during the penetration of PELE was divided into the following parts:the energy obtained by the annular plug block corresponded to the outer shell and the inner core,the increased internal energy of the outer casing and inner core,the shear energy dissipated in the outer casing.Based on the principle of energy conservation,the theoretical model of axial residual velocity after PELE vertical penetrating thin metal targets was obtained.To verify the rationality and accuracy of the theoretical model,the corresponding experiments were designed to verify the results.The results show that the calculated results coincide well with the experimental results under different conditions.Therefore,the theoretical model of axial residual velocity of PELE vertical penetrating thin target can provide guidance and reference for engineering application.
引文
[1]Kesberg G,Schirm V,Kerk S.PELE:the future ammunition concept[C]//Proceedings of 21st International Symposium on Ballistics,2004:1134-1144.
[2]Paulus G,Chanteret P Y,Wollmann E.PELE:a new penetrator concept for generating lateral effects[C]//Proceedings of 21st International Symposium on Ballistics,2004:104-110.
[3]潘建华,文鹤鸣.平头弹丸正撞下延性金属靶板的破坏模式[J].高压物理学报,2007,21(2):157-164.PAN Jianhua,WEN Heming.Failure modes of ductile metal plates under normal impact by flat-ended projectiles[J].Chinese Journal of High Pressure Physics,2007,21(2):157-164.(in Chinese)
[4]陈小伟,梁冠军,姚勇,等.平头弹穿透金属靶板的模式分析[J].力学学报,2009,41(1):84-90.CHEN Xiaowei,LIANG Guanjun,YAO Yong,et al.Perforation modes of metal plates struck by a blunt rigid projectile[J].Chinese Journal of Theoretical and Applied Mechanics,2009,41(1):84-90.(in Chinese)
[5]Chen X W,Li Q M.Shear plugging and perforation of ductile circular plates struck by a blunt projectile[J].International Journal of Impact Engineering,2003,28(5):513-536.
[6]蒋建伟,张谋,门建兵,等.不同内核材料PELE弹丸对多层靶板穿甲实验研究[J].北京理工大学学报,2010,30(9):1009-1012.JIANG Jianwei,ZHANG Mou,MEN Jianbing,et al.Experimental study on multi-layered target penetration of PELE with different cores[J].Transactions of Beijing Institute of Technology,2010,30(9):1009-1012.(in Chinese)
[7]朱建生,赵国志,杜忠华,等.靶板厚度对横向效应增强型侵彻体作用效果的影响[J].南京理工大学学报(自然科学版),2009,33(4):474-479.ZHU Jiansheng,ZHAO Guozhi,DU Zhonghua,et al.Influence of target thickness on lateral effect of PELE[J].Journal of Nanjing University of Science and Technology,2009,33(4):474-479.(in Chinese)
[8]Tu S Y,Wang J B,An Z T,et al.Influence of thickness of armor on the burst-effect of steel shell PELE[C]//Proceedings of 9th International Conference on Electronic Measurement&Instruments,2009:4926-4929.
[9]Paulus G,Schirm V.Impact behavior of PELE projectiles perforating thin target plates[J].International Journal of Impact Engineering,2006,33(1):566-579.
[10]Ji P Y,Wang H F.Ballistic limit and residual velocity of PELE penetrating against metal target[J].Journal of Beijing Institute of Technology,2011,20(2):183-186.
[11]马立,吴玉斌.横向增强效应型弹药侵彻剩余速度分析[J].科学技术与工程,2011(22):5375-5377.MA Li,WU Yubin.Penetration residual velocity analysis of penetrator with enhanced lateral efficiency[J].Science Technology and Engineering,2011(22):5375-5377.(in Chinese)
[12]Verreault J.Analytical and numerical description of the PELEfragmentation upon impact with thin target plates[J].International Journal of Impact Engineering,2015,76:196-206.
[13]Fan Z J,Ran X W,Tang W H,et al.The model to calculate the radial velocities of fragments after PELE penetrator perforating a thin plate[J].International Journal of Impact Engineering,2016,77:12-16.
[14]张国伟.终点效应及靶场试验[M].北京:北京理工大学出版社,2009.ZHANG Guowei.Terminal effect and experiment of shooting range[M].Beijing:Beijing Institute of Technology Press,2009.(in Chinese)
[2]Paulus G,Chanteret P Y,Wollmann E.PELE:a new penetrator concept for generating lateral effects[C]//Proceedings of 21st International Symposium on Ballistics,2004:104-110.
[3]潘建华,文鹤鸣.平头弹丸正撞下延性金属靶板的破坏模式[J].高压物理学报,2007,21(2):157-164.PAN Jianhua,WEN Heming.Failure modes of ductile metal plates under normal impact by flat-ended projectiles[J].Chinese Journal of High Pressure Physics,2007,21(2):157-164.(in Chinese)
[4]陈小伟,梁冠军,姚勇,等.平头弹穿透金属靶板的模式分析[J].力学学报,2009,41(1):84-90.CHEN Xiaowei,LIANG Guanjun,YAO Yong,et al.Perforation modes of metal plates struck by a blunt rigid projectile[J].Chinese Journal of Theoretical and Applied Mechanics,2009,41(1):84-90.(in Chinese)
[5]Chen X W,Li Q M.Shear plugging and perforation of ductile circular plates struck by a blunt projectile[J].International Journal of Impact Engineering,2003,28(5):513-536.
[6]蒋建伟,张谋,门建兵,等.不同内核材料PELE弹丸对多层靶板穿甲实验研究[J].北京理工大学学报,2010,30(9):1009-1012.JIANG Jianwei,ZHANG Mou,MEN Jianbing,et al.Experimental study on multi-layered target penetration of PELE with different cores[J].Transactions of Beijing Institute of Technology,2010,30(9):1009-1012.(in Chinese)
[7]朱建生,赵国志,杜忠华,等.靶板厚度对横向效应增强型侵彻体作用效果的影响[J].南京理工大学学报(自然科学版),2009,33(4):474-479.ZHU Jiansheng,ZHAO Guozhi,DU Zhonghua,et al.Influence of target thickness on lateral effect of PELE[J].Journal of Nanjing University of Science and Technology,2009,33(4):474-479.(in Chinese)
[8]Tu S Y,Wang J B,An Z T,et al.Influence of thickness of armor on the burst-effect of steel shell PELE[C]//Proceedings of 9th International Conference on Electronic Measurement&Instruments,2009:4926-4929.
[9]Paulus G,Schirm V.Impact behavior of PELE projectiles perforating thin target plates[J].International Journal of Impact Engineering,2006,33(1):566-579.
[10]Ji P Y,Wang H F.Ballistic limit and residual velocity of PELE penetrating against metal target[J].Journal of Beijing Institute of Technology,2011,20(2):183-186.
[11]马立,吴玉斌.横向增强效应型弹药侵彻剩余速度分析[J].科学技术与工程,2011(22):5375-5377.MA Li,WU Yubin.Penetration residual velocity analysis of penetrator with enhanced lateral efficiency[J].Science Technology and Engineering,2011(22):5375-5377.(in Chinese)
[12]Verreault J.Analytical and numerical description of the PELEfragmentation upon impact with thin target plates[J].International Journal of Impact Engineering,2015,76:196-206.
[13]Fan Z J,Ran X W,Tang W H,et al.The model to calculate the radial velocities of fragments after PELE penetrator perforating a thin plate[J].International Journal of Impact Engineering,2016,77:12-16.
[14]张国伟.终点效应及靶场试验[M].北京:北京理工大学出版社,2009.ZHANG Guowei.Terminal effect and experiment of shooting range[M].Beijing:Beijing Institute of Technology Press,2009.(in Chinese)