双层壳体内壳外刻槽对破片成型的影响  

Influence of the Inner and Outer Grooves of the Double-Layer Shell on the Formation of Fragments

作　　者：曲乾坤 印立魁 李波 黄文龙 田鹏 高金明 盛鹏 QU Qiankun;YIN Likui;LI Bo;HUANG Wenlong;TIAN Peng;GAO Jinming;SHENG Peng(School of Mechatronics Engineering,North University of China,Taiyuan 030051,China;National Defense Key Discipline Laboratory of Underground Target Destruction Technology,North University of China,Taiyuan 030051,China;China Ordnance Industry Experimental and Test Research Institute,Weinan 714200,China;Shanxi Jiangyang Chemical Co.,Ltd.,Taiyuan 030051,China;Shandong North Binhai Machinery Co.,Ltd.,Zibo 255000,China;China Ordnance Industry Explosives Engineering and Safety Technology Research Institute,Beijing 100053,China;Nanyang North Hongyu Mechanical and Electrical Manufacturing Co.,Ltd.,Nanyang 474675,China)

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]中北大学地下目标毁伤技术国防重点学科实验室,山西太原030051 [3]中国兵器工业实验测试研究院,陕西渭南714200 [4]山西江阳化工有限公司,山西太原030051 [5]山东北方滨海机器有限公司,山东淄博255000 [6]中国兵器工业火炸药工程与安全技术研究院,北京100053 [7]南阳北方红宇机电制造有限公司,河南南阳474675

出　　处：《中北大学学报（自然科学版）》2023年第1期24-31,38,共9页Journal of North University of China(Natural Science Edition)

摘　　要：针对破片杀伤弹内层壳体外刻槽的双层壳体结构,利用LS-DYNA有限元分析软件对比分析了内壳刻槽参数对外壳破裂成型的影响。结果表明,同种工况下,U形刻槽和梯形刻槽内壳聚能装药结构外层壳体破碎成型优于V形槽,且在刻槽角度为45°和50°工况下,内壳梯形刻槽结构使外层壳体破片总动能最大;内壳的厚度、相对刻槽深度和刻槽角度均会影响该结构外层壳体破片成型,且内壳厚度影响最大,刻槽角度次之,相对刻槽深度最小;内壳厚度在1 mm~3 mm区间内,装药结构外层壳体破碎成型效果存在最优值,且装药直径为40 mm时,内壳最佳厚度为2 mm。Aiming at the double-layer shell structure of the inner and outer shell of the fragment killing bomb, the influence of the inner shell notch parameters on the outer shell fracture forming was comparatively analyzed by LS-DYNA finite element analysis software. The results show that under the same working conditions, the U-shaped groove and trapezoidal groove inner shell shaped charge structure is superior to the V-shaped groove for the outer shell fracture forming, and the trapezoidal groove structure of inner shell makes the total kinetic energy of outer shell fragment maximum under the working conditions of 45° and 50° groove angles. The thickness, the relative groove depth and the groove angle of the inner shell all affect the fragment forming of the outer shell of the structure, and the thickness of the inner shell has the greatest influence, followed by the groove angle, and the relative groove depth is the smallest. When the thickness of inner shell is in the range from 1 mm to 3 mm, the crushing and forming effect of outer shell of charge structure has an optimal value, and when the charge diameter is 40mm, the optimal thickness of inner shell is 2 mm.

关 键 词：预控破片 双层壳 刻槽结构 LS-DYNA 聚能装药 破片成型 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]