| 粉末药型罩聚能射流形成过程中温度分布及影响分析 |
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| 作者单位： | ;1.内蒙动力机械研究所;2.大连理工大学机械工程学院精密与特种加工教育部重点实验室;3.内蒙古航天红岗机械有限公司;4.大连理工大学工业装备结构分析国家重点实验室 |
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| 摘 要： | 根据石油射孔弹的实际结构和几何尺寸,运用ANSYS/LS-DYNA-2D非线性动力学有限元分析软件,采用瞬态非线性的热耦合计算方式,对孔隙率为11.53%的铜药型罩射流形成过程中典型瞬态的温度场进行描述和分析;对多孔药型罩聚能射流的最高温度-时间曲线进行研究,并对射流自身是否产生熔化进行判断;对比了多孔药型罩与密实药型罩聚能射流轴线和外表面温度。结果表明:聚能射流轴线温度高,由轴线向外表面逐渐降低,最高温度先增大,11μs增到最大1 743K后减小,最后几乎不变,约为1 378K,多孔药型罩比密实药型罩聚能射流的温度高,延伸性能和稳定性能更好。
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| 关 键 词： | 石油射孔弹 数值模拟 温度场 多孔药型罩 密实药型罩 聚能射流 |
Temperature distribution and influence analysis during shaped charge jet formation process of powder liner |
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| Affiliation: | ,Machinery Dynamical Institute of Inner Mongolia,Key Laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education,School of Mechanical Engineering,Dalian University of Technology,Inner Mongolia Aerospace Machine Corporation,State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology |
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| Abstract: | According to actual structure and geometry size of petroleum perforating charge,the typical transient temperature field of copper liner with 11.53% porosity jet was described and analyzed by using nonlinear dynamics finite element software ANSYS/LS-DYNA-2Dand nonlinear transient thermal coupling calculation method.The highest temperature-time curve of porous liner shaped charge jet was studied and the jet itself melt or not was judged.The axis and the outer surface temperature of porous liner jet and solid liner jet were also compared.The result showed that the temperature of axis was highest,decreasing from axis to outer surface,the maximum peak of temperature initially increased to 1 743 Kin 11μs,then decreased,finally stabilized at 1 738 K.In comparison to solid copper liner,the jet temperature of porous liner was higher,and with better stability and extension performance. |
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| Keywords: | Petroleum perforating charge Numerical simulation Temperature field Porous liner Solid liner Shaped charge jet |
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