二维码（扫一下试试看！） | | 椭圆截面杀伤战斗部破片初速沿周向分布规律 | | Fragment Velocity Distribution of Elliptical Cross-Section Killing Warhead Along Circumference | | 投稿时间：2018-12-01 | | DOI：10.15918/j.tbit1001-0645.2018.s2.040 | | 中文关键词:椭圆截面Gurney公式修正初速周向分布杀伤战斗部 | | English Keywords:elliptical cross-sectionGurney equation modificationvelocity distribution along circumferencekilling warhead | | 基金项目: | | | 摘要点击次数:566 | | 全文下载次数:153 | | 中文摘要: | | 为研究异形结构杀伤战斗部破片速度及其分布规律，选择了椭圆截面柱状战斗部结构为研究对象，首先应用有限元数值方法，得到了不同短长轴之比、不同装药质量C与壳体质量M之比β的战斗部壳体加速规律，并且模拟得到了与各椭圆截面战斗部具有相等C/M的圆柱状战斗部的破片初速，近而得到了与圆形截面战斗部破片初速相等时的椭圆截面战斗部方位角δ，δ随短长轴之比和C/M变化；基于Gurney公式，通过对其β以及能量损耗进行修正，得到了椭圆截面战斗部壳体破片初速沿周向分布规律和破片初速计算公式.计算结果表明，破片初速在周向上沿短轴方向最大，沿长轴方向最小. | | English Summary: | | In order to study the fragments speed and its distribution law of the special-shaped warhead, the elliptical-section warhead structure was selected as the research object. Firstly, the finite element numerical method was used to obtain the acceleration law of warhead with different ratio of short and long axes, different ratio of charge quality C and shell quality M. The initial velocity of the fragmentation of the cylindrical warhead with the same C/M as the warhead of each elliptical section is simulated, and the initial velocity of the fragmentation of the circular section warhead, the azimuth angle δ when the velocity of elliptical warhead is the same as that of cylindrical warhead, the variations of δ of the elliptical section warhead with the axial ratio and the C/M change are obtained. Based on the Gurney formula, the initial velocity and the formula for calculating the initial velocity of the fragment of the elliptical section warhead shell is obtained along the circumferential direction by correcting the β and energy loss. The calculated results show that the initial velocity of the fragment is the largest in the circumferential direction along the short axis and the smallest along the long axis. | | 查看全文查看/发表评论下载PDF阅读器 | |
尹艳华,孙美,庞志康.第一性理论研究60~160GPa下固态氢结构稳定性[J].北京理工大学学报（自然科学版）,2017,37(2):212~215.YINYan-hua,SUNMei,PANGZhi-kang.StructuralStabilityoftheSolidHydrogenStructu ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21丁俊才,吴斌,何存富.矩阵理论在黏接结构界面脱黏超声检测方法中的应用[J].北京理工大学学报（自然科学版）,2017,37(3):221~226,249.DINGJun-cai,WUBin,HECun-fu.ApplicationofMatrixTheoryinAcousticTestingMeth ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21聂百胜,杨龙龙,王成,黄金鑫.瓦斯爆炸炭黑结构及产生机理分析[J].北京理工大学学报（自然科学版）,2017,37(4):424~429.NIEBai-sheng,YANGLong-long,WANGCheng,HUANGJin-xin.SootCharacteristicandFormationM ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21张真宁,孙华飞,韩希武,曹丽梅.晶粒直径的信息几何结构[J].北京理工大学学报（自然科学版）,2017,37(4):436~440.ZHANGZhen-ning,SUNHua-fei,HANXi-wu,CAOLi-mei.TheInformationGeometricStructuresoftheS ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21何文,王成,石文芳,宁建国,赵奎.锚杆锚固质量的超声导波检测技术研究[J].北京理工大学学报（自然科学版）,2017,37(6):567~572,578.HEWen,WANGCheng,SHIWen-fang,NINGJian-guo,ZHAOKui.EvaluationofAnchorageQua ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21高春晖,高世桥,金磊,刘海鹏,牛少华.微机械结构中考虑边界滑移的穿孔平板压膜阻尼分析[J].北京理工大学学报（自然科学版）,2017,37(6):562~566.GAOChun-hui,GAOShi-qiao,JINLei,LIUHai-peng,NIUShao-hua.CompactAnalyti ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21董天普,刘波澜,张付军,王英敏,刘盼.EGR涡轮增压柴油机的进气未燃空气质量分数估计[J].北京理工大学学报（自然科学版）,2017,37(7):687~692.DONGTian-pu,LIUBo-lan,ZHANGFu-jun,WANGYing-min,LIUPan.UnburnedAirMass ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21夏凯锋,周小平,吴斌.任意点存储器结构FFT处理器地址策略[J].北京理工大学学报（自然科学版）,2017,37(9):953~957.XIAKai-feng,ZHOUXiao-ping,WUBin.GeneralizedEfficientAddressSchemeforArbitraryPoint ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21郑戍华,曹鑫磊,王向周.非公路车辆簧载质量实时估计[J].北京理工大学学报（自然科学版）,2017,37(12):1282~1286.ZHENGShu-hua,CAOXin-lei,WANGXiang-zhou.Real-TimeSprungMassEstimationforOff-RoadVehi ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21张德雨,邓玉林,李晓琼.基于可控液压阀的微流体驱动结构[J].北京理工大学学报（自然科学版）,2017,37(s1):113~117.ZhangDe-yu,DengYu-lin,LiXiaoqiong.MicroFluid-DrivingStructureBasedOnControllableHyd ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21
| |
