| 炸药在密闭容器中爆炸数值模拟和试验 |
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| 引用本文： | 金朋刚,李鸿宾,贾宪振.炸药在密闭容器中爆炸数值模拟和试验[J].火工品,2019(2):31-34. |
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| 作者姓名： | 金朋刚 李鸿宾 贾宪振 |
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| 作者单位： | 西安近代化学研究所,陕西 西安,710065;西安近代化学研究所,陕西 西安,710065;西安近代化学研究所,陕西 西安,710065 |
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| 摘 要： | 为了解炸药在密闭容器中爆炸超压传播规律,测量了 TNT 在 500L 密闭容器中爆炸的冲击波超压和准静压,利用 AUTODYN 建立了二维轴对称模型,获得了冲击波和爆轰产物在容器中的传播过程。研究了传感器附近的凹凸结构对冲击波超压和准静压测试的影响,对比数值计算和实测超压历程曲线。结果表明,数值计算和试验结果基本一致,凹凸结构能够显著影响冲击波超压,而对准静压无影响。
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| 关 键 词： | 炸药 冲击波超压 准静压 数值模拟 密闭容器 后燃烧 |
Test and Simulation Research of Explosives Detonation in Confined Chamber |
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| JIN Peng-gang,LI Hong-bin,JIA Xian-zhen.Test and Simulation Research of Explosives Detonation in Confined Chamber[J].Initiators & Pyrotechnics,2019(2):31-34. |
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| Authors: | JIN Peng-gang LI Hong-bin JIA Xian-zhen |
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| Affiliation: | (Xi’an Modern Chemistry Research Institute, Xi’an, 710065) |
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| Abstract: | In order to know the spreading rule of shock wave in confined chamber, the overpressure and quasi-static pressure of TNT explosion in a 500L chamber were tested, the 2D simulation model was built by AUTODYN, meanwhile, the spreading law of shock wave and detonation products in the chamber were obtained. The influence of structure near sensors was considered, the simulation and testing result were compared, which shows that simulation accords with the testing result, accented structure near the sensors influence shock wave seriously, while has no effect on the quasi-static pressure. |
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| Keywords: | Explosives Shockwave Quasi-static pressure Simulation Confined chamber Afterburning |
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