Critical penetration velocity of prefabricated fragment in penetrating homogeneous armor steel plate
-
摘要: 通过对预制破片侵彻均质装甲钢的过程进行受力分析，推导预制破片极限穿透速度的计算公式，分别对3种形状规则预制破片的极限穿透速度进行理论计算，并通过实弹驱动试验和弹道枪模拟复核试验测得极限穿透速度与理论计算结果相对比，得出理论计算结果与试验结果的误差，通过数据分析处理给出计算公式的修正系数。Abstract: In this study, we at first made a mechanical analysis of the process of the prefabricated fragment penetrating fully the homogeneous armor plate using theoretical calculation and experimental study, and derived the penetration velocity respectively for three shapes of prefabricated fragments. Then, by combining live testing with simulation, we obtained this penetration velocity and had it compared with the theoretical calculation results, thereby arriving at the error between them and coming out with the revised coefficient for the critical penetration velocity.
-
图 2 预制破片着靶几何关系
Figure 2. Geometrical relationship of prefabricated fragment and target
图 5 3种形状预制破片模拟弹头
Figure 5. Simulated warheads of prefabricated fragments in three shapes
图 8 预制破片极限穿透均质钢板前嵌入状态
Figure 8. Embedded state of prefabricated fragment before fully penetrating homogeneous steel plate
表 1 3种形状预制破片和装甲板参数
Table 1. Parameters of prefabricated fragments and armor
形状 破片尺寸 m/g h/mm τy/MPa 方形 a=7.3 mm 7.00 10 1 700 圆柱形 R=4.0 mm H=7.0 mm 6.33 10 1 700 球形 R=2.5 mm 4.70 10 1 700 
下载: 导出CSV
表 2 预制破片垂直侵靶和斜侵靶时理论计算数据
Table 2. Calculation data of target's vertical and oblique penetration by prefabricated fragment
破片形状 m/g S/mm2 L/mm vL/(m·s-1) 垂直侵彻 斜侵彻 垂直侵彻 斜侵彻 垂直侵彻 斜侵彻 垂直侵彻 斜侵彻 方形 7.00 7.00 53.29 72.80 29.20 20.65 667.1 1 024.1 圆柱形 6.33 6.33 56.00 48.50 30.00 25.98 690.5 1 049.3 球形 4.70 4.70 19.63 19.63 15.70 15.70 654.5 902.7
下载: 导出CSV
表 3 预制破片侵靶试验结果
Table 3. Test results of prefabricated fragment penetrating target
破片形状 m/g v0/(m·s-1) vr/(m·s-1) 试验1 试验2 平均 试验1 试验2 平均 方形 7.00 1 031.9 1 057.4 1 044.7 146.7 134.6 140.7 圆柱形 6.33 1 069.4 1 073.3 1 071.4 233.8 201.0 217.4 球形 4.70 915.7 920.3 918.0 153.6 101.4 127.5
下载: 导出CSV
表 4 弹道枪试验结果
Table 4. Test results of ballistic gun
破片形状 m/g W/g v0/(m·s-1) vr/(m·s-1) 试验1 试验2 试验3 平均 试验1 试验2 试验3 平均 方形 7.00 28 979.2 986.3 1 001.8 989.1 128.7 131.6 123.6 128.0 圆柱形 6.33 30 1 040.2 1 010.7 997.1 1 016.0 233.8 201.0 210.7 215.2 球形 4.70 25 870.2 879.3 880.5 876.7 153.6 101.4 121.4 125.5
下载: 导出CSV
-
[1] 石志杰, 姜春兰.不同形状预制破片的速度衰减特性及极限贯穿速度分析[J].弹箭与制导学报, 2004, 24(1):312-314. http://www.cnki.com.cn/Article/CJFDTotal-BIGO201412005.htmSHI Zhijie, JIANG Chunlan. Different shapes of preformed fragment velocity attenuation characteristics and throughout limit velocity analysis[J]. Journal of Projectiles Rockets, Missiles and Guidance, 2004, 24(1):312-314. http://www.cnki.com.cn/Article/CJFDTotal-BIGO201412005.htm [2] 贾光辉, 孙学清, 裴思行.极限穿透速度与靶板材料动态屈服强度[J].弹道学报, 1998, 10(4):46-49. http://www.cnki.com.cn/Article/CJFDTotal-JFJL201306010.htmJIA Xiaohui, SUN Xueqing, PEI Sixing. Limit penetration velocity and dynamic target plate material yield strength[J]. Journal of Ballistics, 1998, 10(4):46-49. http://www.cnki.com.cn/Article/CJFDTotal-JFJL201306010.htm [3] 高润芳, 韩峰, 马小青, 等.几种钨合金破片垂直侵彻装甲钢板极限穿透速度研究[J].弹箭与制导学报, 2005, 25(4):57-59. http://www.cqvip.com/QK/97591A/200504/20617714.htmlGAO Runfang, HAN Feng, MA Xiaoqing, et al. Several kinds of tungsten alloy fragment vertical penetration armor penetration speed limit[J]. Journal of Projectiles Rockets, Missiles and Guidance, 2005, 25(4):57-59. http://www.cqvip.com/QK/97591A/200504/20617714.html [4] 尹放林, 王明洋, 钱七虎.弹体垂直侵彻深度工程计算模型[J].爆炸与冲击, 1997, 17(4):333-339. http://www.bzycj.cn/CN/abstract/abstract10482.shtmlYIN Fanglin, WANG Mingyang, QIAN Qihu. Projectile vertical penetration depth engineering calculation model[J]. Explosion and Shock Waves, 1997, 17(4):333-339. http://www.bzycj.cn/CN/abstract/abstract10482.shtml [5] 印立魁, 蒋建伟, 门建兵, 等.立方体预制破片战斗部破片初速计算模型[J].兵工学报, 2014, 35(12):1967-1971. doi: 10.3969/j.issn.1000-1093.2014.12.005YIN Likui, JIANG Jianwei, MEN Jianbing, et al. Cube prefabricated fragment warhead fragment velocity calculation model[J]. Acta Armamentarii, 2014, 35(12):1967-1971. doi: 10.3969/j.issn.1000-1093.2014.12.005 [6] 彭军, 袁宝慧, 程淑杰, 等.立方体破片对钢靶的穿甲威力研究[J].科学技术与工程, 2014, 11(29):7092-7096. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kxjsygc201129011PENG Jun, YUAN Baohui, CHENG Shujie, etal. Cube pieces of steel target power research[J]. Science, Technology and Engineering, 2014, 11(29):7092-7096. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kxjsygc201129011 [7] 冯美玲, 陈智刚, 徐元生, 等.钨合金破片斜侵彻铝板极限速度研究[J].机电技术, 2015.36(1):17-19. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=jdjs201501005FENG Meiling, CHEN Zhigang, XU Yuansheng, etal. Tungsten alloy fragment oblique penetration aluminum plate speed limit[J]. Mechanical and Electrical Technology, 2015, 36(1):17-19. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=jdjs201501005 [8] 翁佩英, 任国民, 于骐.弹药靶场试验[M].北京:兵器工业出版社, 1995. [9] 黄长强, 朱鹤松.球形破片对靶板极限穿透速度公式的建立[J].弹箭与制导学报, 1993(2):58-61. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-LXFY200500001072.htmHUANG Changqiang, ZHU Hesong. The spherical fragment to the establishment of a target board through speed limit formula[J]. Journal of Pojectiles rockets, Missiles and Guidance, 1993(2):58-61. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-LXFY200500001072.htm [10] 王超, 安振涛, 甑建伟.长方体破片对金属薄板的极限穿透速度研究[J].弹箭与制导学报, 2012, 32(3):92-95. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=djyzdxb201203026WANG Chao, AN Zhentao, ZENG Jianwei. Cuboid broken piece of research on the limit of sheet metal penetration rate[J]. Journal of Projectiles Rockets, Missiles and Guidance, 2012, 32(3):92-95. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=djyzdxb201203026 [11] BACKMAN M E, GOLDSMITH W. The mechanics of pengtration of projectiles into targets[J]. International Journal Engineering Science, 1978, 16(12):1-99. https://www.sciencedirect.com/science/article/pii/0020722578900022 [12] ZUKAS J A. Impact dynamics[M]. New York: New York Wiley Inter Science, 1982. [13] CHARLES E, ANDERSON J, DAVID L, et al. Long-rod penetration, target resistance, and hypervelocity impact[J]. International Journal of Impact Engineering, 1993, 14(1/2/3/4):1-12. https://www.sciencedirect.com/science/article/pii/0734743X9390004Q [14] 康爱花, 陈智刚, 付建平.球形破片侵彻高强度装甲钢的弹道极限速度计算[J].中北大学学报(自然科学版), 2015, 36(6):647-651. https://www.wenkuxiazai.com/doc/196b51af01f69e314232944e.htmlKANG Aihua, CHEN Zhigang, FU Jianping. Penetration armor high strength steel spherical fragment ballistic limit velocity calculation[J]. Journal of Zhongbei University (Natural Science Edition), 2015, 36(6):647-651. https://www.wenkuxiazai.com/doc/196b51af01f69e314232944e.html [15] CARLEONE J.Tactical missile warheads[M]. Washington: The Americal Institute of Aeronautics and Astronautics, 1993:462-464. [16] CHARRON Y J. Estimation of velocity distribution of fragmenting warheads using a modified gurney method: ADA074759[R]. Air Force Institute of Technology, Ohio, 1979: 40-42. https://www.researchgate.net/publication/277842508_Estimation_of_Velocity_Distribution_of_Fragmenting_Warheads_Using_a_Modified_Gurney_Method -
点击查看大图
计量
- 文章访问数: 5225
- HTML全文浏览量: 1404
- PDF下载量: 363
- 被引次数: 0