Solid-to-hybrid transitioning armature railgun with non-conforming-to-prejudice bore profile

Solberg, Jerome Michael

Solid-to-hybrid transitioning armature railgun with non-conforming-to-prejudice bore profile

Patent · Mon Dec 03 23:00:00 EST 2012

OSTI ID:1082494

Solberg, Jerome Michael

An improved railgun, railgun barrel, railgun projectile, and railgun system for accelerating a solid-to-hybrid transitioning armature projectile using a barrel having a bore that does not conform to a cross-sectional profile of the projectile, to contact and guide the projectile only by the rails in a low pressure bore volume so as to minimize damage, failure, and/or underperformance caused by plasma armatures, insulator ablation, and/or restrikes.

Research Organization:: LLNL (Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States))

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Number(s):: 8,322,328

Application Number:: 13/110,851

OSTI ID:: 1082494

Country of Publication:: United States

Language:: English

References (8)

A survey of armature transition mechanisms Barber, J. P.; Bauer, D. P.; Jamison, K. IEEE Transactions on Magnetics, Vol. 39, Issue 1 https://doi.org/10.1109/TMAG.2002.805913	journal	January 2003
Electromagnetic acceleration of macroparticles to high velocities Rashleigh, S. C.; Marshall, R. A. Journal of Applied Physics, Vol. 49, Issue 4 https://doi.org/10.1063/1.325107	journal	January 1978
The stability and the conditions for initiation of electric-arc discharges in railguns Glinov, A. P. High Temperature, Vol. 45, Issue 2 https://doi.org/10.1134/S0018151X07020022	journal	April 2007
Advancements in the Development of a Plasma-Driven Electromagnetic Launcher Wetz, D. A.; Stefani, F.; Parker, J. V. IEEE Transactions on Magnetics, Vol. 45, Issue 1 https://doi.org/10.1109/TMAG.2008.2008867	journal	January 2009
Physics of solid armature launch transition into arc mode Drobyshevski, E. M.; Rozov, S. I.; Zhukov, B. G. IEEE Transactions on Magnetics, Vol. 37, Issue 1 https://doi.org/10.1109/20.911792	journal	January 2001
Railgun performance with a two-stage light-gas gun injector Hawke, R. S.; Susoeff, A. R.; Asay, J. R. IEEE Transactions on Magnetics, Vol. 27, Issue 1 https://doi.org/10.1109/20.100988	journal	January 1991
A gas-insulated railgun Tidman, D. A.; Witherspoon, F. D.; Parker, J. V. IEEE Transactions on Plasma Science, Vol. 21, Issue 6 https://doi.org/10.1109/27.256800	journal	January 1993
A transitioning hybrid armature concept [for EM launchers] James, T. E. IEEE Transactions on Magnetics, Vol. 37, Issue 1 https://doi.org/10.1109/20.911795	journal	January 2001

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45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE

Solid-to-hybrid transitioning armature railgun with non-conforming-to-prejudice bore profile

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