Experiments of Sympathetic Detonation Performance of Explosives with Shell in Water
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摘要: 为了研究弹药在水下爆炸作用下的安全性, 利用水下爆炸试验研究了2种铝壳装药的水中殉爆特性, 确定了装药的殉爆距离和殉爆安全距离, 并基于气泡能分析了被发装药的殉爆反应程度。结果表明: 主发装药为1.5 mm铝壳的PBX装药, 被发装药为1.0 mm铝壳的RS211装药时, 殉爆距离约为60 mm, 殉爆安全距离约为120 mm; 主发装药为1.5 mm铝壳的PBX装药, 被发装药为1.0 mm铝壳的PBX装药时, 殉爆距离约为10 mm, 殉爆安全距离约为30 mm。被发装药完全爆轰时, 计算得到其反应率在86%~95%之间, 这是由于2个气泡的融合导致气泡周期变小。Abstract: To investigate the safety of ammunition under underwater explosion, underwater sympathetic detonation characteristics of two types of explosives with aluminum shell are investigated via an underwater explosion test. The sympathetic detonation distance and safety distance of the test charges are determined, and the sympathetic reaction degree of the charge is analyzed based on the bubble energy. Results reveal that when the donor charge is a PBX charge with a 1.5 mm aluminum shell and the acceptor charge is an RS211 charge with a 1.0 mm aluminum shell, the sympathetic detonation distance is 60 mm and the safety distance of sympathetic detonation is 120 mm. When the donor and acceptor charges are PBX charges with 1.5 and 1.0 mm aluminum shells, respectively, the sympathetic detonation distance is 10 mm and the safety distance of sympathetic detonation is 30 mm. The reaction rates of completely detonated acceptor charges are only between 86% and 95% owing to a decrease in the bubble period caused by the fusion and collision of two bubbles.
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Key words:
- underwater explosion /
- explosives with shell /
- sympathetic detonation /
- bubble energy
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表 1 试验样品性能参数
Table 1. Performance parameters of the test sample
样品 配方 尺寸/cm×cm ρ/
(g·m−3)D/
(m·s−1)Qv/
(kJ·kg−1)RS211 RDX/TNT/Al/Wax Ф90×100 1.637 7 350 6 197 PBX RDX/AP/Al/HTPB Ф90×90 1.817 5 494 8 142 表 2 2种炸药水中殉爆试验结果
Table 2. Results of sympathetic detonation test of two explosives
主发装药 被发装药 L/mm Pm/MPa tb/ms 是否殉爆 PBX — — 16.27 322.9 标定试验 RS211 160 16.32 323.6 否 120 16.33 323.4 否 100 16.46 341.6 半爆 80 15.71 345.1 半爆 40 23.58 385.4 是 60 24.62 381.7 是 PBX 10 19.17 395.5 是 30 16.26 321.7 否 60 15.75 320.7 否 表 3 2种炸药水下爆炸的殉爆距离和安全距离
Table 3. Safety distance and sympathetic distance of two explosives
被发装药 L100/mm L0/mm RS211 60 120 PBX 10 30 表 4 被发装药反应参数
Table 4. Reaction parameters of acceptor charges
主发装药 被发装药 L/cm tb/ms 是否殉爆 m/kg mf /kg η/% PBX RS211 160 323.6 否 1.021 0.0 0.0 120 323.4 否 1.019 0.0 0.0 100 341.6 半爆 1.201 0.263 26.3 80 345.1 半爆 1.239 0.313 31.3 60 381.7 是 1.675 0.884 88.4 PBX 40 385.4 是 1.725 0.950 95.0 60 320.7 否 0.994 0.0 0.0 30 321.7 否 1.003 0.0 0.0 10 395.5 是 1.865 0.865 86.5 -
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