爆破器材Issue(4)：14-19,6.DOI:10.3969/j.issn.1001-8352.2013.04.004
基于等质量变壁厚球缺罩聚能杆式射流成型特性研究*
Characteristic study on jetting projectile charge formation of variable thickness sphere liner based on equi-mass
摘要
Abstract
Based on the assumption of keeping the mass of variable thickness sphere liner unchanged , calculation model of design parameters δs and rx was established by changing the curvature radius of inner surface rx and the liner top thickness s and adjusting the structure of liner .LS-DYNA explicit non-liner dynamic Finite Element Analysis (FEA) pro-gram was used to 3D numerically simulate the full process of jetting projectile charge (JPC) formation of variable thickness sphere liner with different structure .Seven different structures of variable thickness sphere liners , whose top thickness vari-ationδs was at the range of(-1.2-+1.2)mm, were designed.Their Jetting projectile charge formation and change laws of performance parameters were studied and compared with even thickness sphere different structure liner .Results show that the variable thickness sphere liner have significant influence on the shape , length, compactness and break-up time of jetting projectile charge.The head velocity of jetting projectile charge is 3317m/s whenδs =-0.4mm.The distribution of velocity gradient is reasonable , and the jetting projectile charge has a better comprehensive performance .关键词
变壁厚球缺罩/杆式射流/数值模拟Key words
variable thickness sphere liner/jetting projectile charge ( JPC)/numerical simulation分类
信息技术与安全科学引用本文复制引用
顾文彬,胡亚峰,刘建青,徐浩铭,秦入平,王振雄..基于等质量变壁厚球缺罩聚能杆式射流成型特性研究*[J].爆破器材,2013,(4):14-19,6.基金项目
国家科技支撑计划项目 （）
