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固体电枢熔化波烧蚀的二维数值模拟 被引量：3

Two-dimensional Numerical Simulation of Melt-wave Erosion in Solid Armatures
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摘要 为了准确地反映电磁轨道炮内电枢烧蚀的特性,建立了二维固体电枢熔化波烧蚀的计算模型。采用有限差分的交替方向隐式法进行耦合计算,得到了熔化波烧蚀的变化特性。计算结果表明,烧蚀的驱动机制为速度趋肤效应,电流集中在电枢与导轨接触面的尾部边缘,使电枢焦耳热剧增导致出现烧蚀。熔化波从电枢尾部向头部推进,当传至电枢头部时,可能引发电枢转捩。 In order to reflect armature erosion characteristics in railguns exactly, a computational model of melt-wave erosion in two-dimensional solid armatures is developed. The variation characteristics of meh-wave erosion are obtained adopting coupling calculations by using the Peaceman-Rachford （P-R）format of the finite difference method. The calculation results show that： the driving mechanism of erosion is the velocity skin effect, a concentration of current is at the rear edge of the rail-armature interface, and the erosion occurs due to the joule heating. The melt-wave moves from the back to the front of the armature. It is possible to cause an armature transition when the melt-wave reaches the front of the armature.
作者 巩飞 翁春生
机构地区 南京理工大学瞬态物理国家重点实验室
出处 《南京理工大学学报》 EI CAS CSCD 北大核心 2012年第3期487-491,共5页 Journal of Nanjing University of Science and Technology
基金 高等学校博士学科点专项科研基金(20093219110037)
关键词 电磁轨道炮 固体电枢 熔化波 烧蚀 有限差分法 railguns solid armature melt-wave erosion finite difference method
分类号 O442 [理学—电磁学]
  • 相关文献

参考文献14

  • 1Young F J, Hughes W F. Hail and armature current distributions ill electromagnetic launchers [ J ]. IEEE Transactions on Magnetics, 1982,18 ( 1 ) : 33 -41.
  • 2李昕,翁春生.固体电枢电磁导轨炮非稳态电磁效应[J].南京理工大学学报,2009,33(1):108-111. 被引量：11
  • 3李昕,翁春生.块状固体电枢非稳态电磁效应的三维数值模拟[J].弹道学报,2009,21(1):103-106. 被引量：9
  • 4Parks P B. Current melt-wave model for transitioning solid armature [ J ]. Journal of Applied Physics, 1990, 67(7) :3511-3516.
  • 5Barber J P, Dreizin Y A. Model of contact transitioning with realistic armature-rail interface [ J ]. IEEE Transactions on Magnetics, 1995,31 ( 1 ) :96-100.
  • 6Woods L C. The current meh-wave model [ J ]. IEEE Transactions on Magnetics, 1997,33 ( 1 ) : 152-156.
  • 7Merrill R, Stefani F. Electrodynamics of the current melt-wave erosion boundary in a conducting half-space [ J ]. IEEE Transactions on Magnetics, 2003,39 ( 1 ) : 66-71.
  • 8Benton T, Stefani F, Satapathy S, et al. Numericalmodeling of melt-wave erosion in conductors [ J ]. IEEE Transactions on Magnetics ,2003,39( 1 ) : 129-133.
  • 9Stefani F, Merrill R, Watt T. Numerical modeling of melt-wave erosion in two-dimensional block armatures [J]. IEEE Transactions on Magnetics,2005,41 (1): 437 -44t.
  • 10] Stefani F, Watt T. The effect of current and speed on perimeter erosion in recovered armatures [ J ]. IEEE Transactions on Magnetics ,2005,41 ( 1 ) :448-452.

二级参考文献17

  • 1Powell J D, Zielinski A E. Observation and simulation of solid-armature railgun performance [ J ]. 1EEE Trans on Magn, 1999, 35 ( 1 ) : 84 - 89.
  • 2Powell J D, Zielinski A E. Current and heat transport in the solid-armature railgun [ J ]. IEEE Trans on Magn, 1995, 31(1): 645-650.
  • 3Zielinski A E,Powell J D. Current and Heat Transport in the Cannon-Caliber Electromagnetic Gun Armature[ R ]. ADA2999d0, 1995.
  • 4Zielinski A E, Powell J D. Current and Heat Transport in a Double Taper Sabot-Armature [ R ]. ADA- 3932O2, 2001.
  • 5James T E. Why solid armatures fail and how they can be improved[J]. IEEE Trans on Magn, 2003, 39(1): 56 - 61.
  • 6Merrill R, Stefani F A. Turbulent mehlubrication model of surface wear in railgun armatures[J]. IEEE Trans on Magn, 2005, 41(1): 414-419.
  • 7Watt T, Stefani F. Experimental and computational investigation of root-radius melting in C-shaped solid armatures[J]. IEEE Trans on Magn, 2005, 41 ( I ) : 442 - 447.
  • 8ZIELINSKI A E, POWELL J D. Current and heat transport in the cannon-caliber electromagnetic gun armature, ADA299940 [R]. 1995.
  • 9POWELL J D, ZIELINSKI A E. Observation and simulation of solid-armature railgun performance [J]. IEEE Trans on Magn, 1999, 35(1): 84-89.
  • 10POWELL J D, ZIELINSKI A E. Current and heat transport in the solid-armature raitgun[J]. IEEE Trans on Magn, 1995, 31(1): 645-650.

共引文献17

同被引文献52

  • 1秦实宏,刘克富,潘垣,邹积岩.减轻轨道炮炮膛烧蚀的研究[J].弹道学报,2001,13(2):74-78. 被引量：7
  • 2夏胜国,朱卫东,何俊佳.大电流高速滑动电接触实验电源系统研制[J].高电压技术,2007,33(7):14-17. 被引量：6
  • 3RICHARD A M, WANG Ying. Railguns: their science and technology [ M ]. Beijing: China Machine Press, 2004.
  • 4WOODS L C. The current melt-wave model[J]. IEEE Transactions on Magnetics, 1997,33(1) : 152 - 156.
  • 5PARK P B. Current melt-wave model for transitioning solid armature[J]. Journal of Applied Physics, 1990, 67(7):3511 -3516.
  • 6BARBER J P, DREIZIN Y A. Model of contact transi- tioning with realistic armature-rail interface[J]. IEEE Transactions on Magnetics, 1995,31 ( 1 ) : 96 - 100.
  • 7BARBER J P, CHALLITA A. Velocity effects on met- al armature contact transition[J]. IEEE Transactions on Magnetics,1993,29(1) :733 - 738.
  • 8MERRILL R, STEFANI F. Electrodynamies of the current melt-wave erosion boundary in a conducting half-space [J]. IEEE Transactions on Magnetics, 2003,39(1) :66 -71.
  • 9STEFANI F, MERRILL R, WATT T. Numerical modeling of melt-wave erosion in two-dimensinal block armatures [J]. IEEE Transactions on Magnetics, 2005,41(1) :437 - 441.
  • 10WATT T, STEFANI F, CRAWFORD M, et al. Investigation of damage to solid armature railguns at st- artup[J]. IEEE Transactions on Magnetics, 2007,43 (1) ,214 -218.

引证文献3

二级引证文献4

南京理工大学学报
2012年 第3期

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