爆破器材2018，Vol.47Issue(4)：35-39,5.DOI:10.3969/j.issn.1001-8352.2018.04.006
分层装药对杆式射流的影响分析
Influence of Layered Charge on Jetting Projectile Charge
成乐乐 1赵太勇 1陈智刚 1印立魁 1王维占 1郭光全 2雷文星3
作者信息
- 1. 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
- 2. 晋西工业集团有限责任公司,山西太原,030051
- 3. 晋西工业集团有限责任公司防务装备研究院第三研究所,山西太原,030051
- 折叠
摘要
Abstract
In order to study the effects of the explosive charge and charge thickness of the stratified charge structure on the jetting projectile charge, the True Grid and LS-DYNA software were used to simulate the formation of the jetting pro-jectile charge under different working conditions.The simulation results show that the impact of stratified charge on the jet-ting projectile charge is related to the difference△D and the thickness ratio d1/d2 between the internal and external char-ges.When d1/d2＜4.4, the velocity difference△D of the charge and its effect on the jet gain positive correlation; when 4.4＜d1/d2＜8, the stratified charge has no significant effect on the jet; when d1/d2＞8.8, the detonation velocity differ-ence △D has a negative correlation with the gain effect of the jet.In general, the stratified charge structure has an opti-mized gain effect on jet morphology, overall kinetic energy, and head-tail velocity, and the optimization and gain effects are related to the thickness ratio and materials of the inner and outer layer charges, and the reasonable charge materials and charge ratios can be effective to improve the damage performance of jetting projectile charge.关键词
分层装药/球缺罩/杆式射流/数值模拟Key words
stratified charge/hemispherical liner/rod type jet/numerical simulation分类
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成乐乐,赵太勇,陈智刚,印立魁,王维占,郭光全,雷文星..分层装药对杆式射流的影响分析[J].爆破器材,2018,47(4):35-39,5.
