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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2017, Volume 58, Issue 5, Pages 131–141
DOI: https://doi.org/10.15372/PMTF20170513
(Mi pmtf666)
 

This article is cited in 1 scientific paper (total in 1 paper)

Thermal limitations in a rapid-fire multirail launcher powered by a pulsed magnetodhydrodynamic generator

S. V. Stankevichab, G. A. Shvetsovab, V. G. Butovc, S. V. Sinyaevc

a Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
b Novosibirsk State Technical University, Novosibirsk, 630073, Russia
c Institute of Applied Mathematics and Mechanics, National Research Tomsk State University, Tomsk, 634050, Russia
Full-text PDF (637 kB) Citations (1)
Abstract: The operation of rapid burst firing multirail electromagnetic launchers of solids is numerically simulated using unsteady two-dimensional and three-dimensional models. In the calculations, the launchers are powered by a Sakhalin pulsed magnetohydrodynamic generator. Launchers with three and five pairs of parallel rails connected in a series electrical circuit are considered. Firing sequences of different numbers of solid projectiles of different masses is modeled. It is established that the heating of the rails is one of the main factors limiting the performance of launchers under such conditions. It is shown that the rate of heating of the rails is determined by the nonuniformity of the current density distribution over the rail cross-section due to the unsteady diffusion of the magnetic field into the rails. Calculations taking into account the unsteady current density distribution in the rails of a multirail launcher show that with an appropriate of the mass of the projectiles (up to 800 g), their number in the sequence, and the material of the rails, it is possible to attain launching velocities of 1.8–2.5 km/s with moderate heating of the rails.
Keywords: multirail electromagnetic launcher, heating of rails, numerical simulation, pulsed magnetohydrodynamic generator.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 9.9752.2017/8.9
Received: 01.06.2017
English version:
Journal of Applied Mechanics and Technical Physics, 2017, Volume 58, Issue 5, Pages 871–880
DOI: https://doi.org/10.1134/S0021894417050133
Bibliographic databases:
Document Type: Article
UDC: 621.362:537.84
Language: Russian
Citation: S. V. Stankevich, G. A. Shvetsov, V. G. Butov, S. V. Sinyaev, “Thermal limitations in a rapid-fire multirail launcher powered by a pulsed magnetodhydrodynamic generator”, Prikl. Mekh. Tekh. Fiz., 58:5 (2017), 131–141; J. Appl. Mech. Tech. Phys., 58:5 (2017), 871–880
Citation in format AMSBIB
\Bibitem{StaShvBut17}
\by S.~V.~Stankevich, G.~A.~Shvetsov, V.~G.~Butov, S.~V.~Sinyaev
\paper Thermal limitations in a rapid-fire multirail launcher powered by a pulsed magnetodhydrodynamic generator
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2017
\vol 58
\issue 5
\pages 131--141
\mathnet{http://mi.mathnet.ru/pmtf666}
\crossref{https://doi.org/10.15372/PMTF20170513}
\elib{https://elibrary.ru/item.asp?id=30295640}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2017
\vol 58
\issue 5
\pages 871--880
\crossref{https://doi.org/10.1134/S0021894417050133}
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  • https://www.mathnet.ru/eng/pmtf/v58/i5/p131
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