In this paper the electromagnetic interferences radiated from a railgun operating with plasma armatures are studied. The level of emission during the initial explosion of the fuse barrel that forms successively the metallic arc is computed by integrating numerically Maxwell's equations in complete form via a suitable numerical code, written in C++ programming language, and based on a three-dimensional finite difference algorithm in the space and in the time domain. The electric and magnetic field during the acceleration of the plasma armature, successive to its formation, are evaluated by means of a quasi-stationary model based on the assumed transient current distribution in the rails and the armature and on a given relation between the current and the position of the armature. The results indicate that both methods can be considered useful tools in the analysis of the electromagnetic environment around rail launchers


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    Title :

    Numerical techniques in electromagnetic compatibility-oriented design of rail launchers operating with plasma armatures


    Additional title:

    Numerische Verfahren beim Aufbau von Schienenauslösern, die an der elektromagnetischen Kompatibilität orientiert sind und mit Plasma-Armaturen arbeiten


    Contributors:
    Angeli, M. (author) / Cardelli, E. (author) / Esposito, N. (author) / Musolino, A. (author)


    Publication date :

    1997


    Size :

    5 Seiten, 7 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Physics of rail gun plasma armatures

    Sloan, M.L. | Tema Archive | 1986


    Electromagnetic launchers

    Kohn, H. / Mongeau, P. / Williams, F. | Tema Archive | 1980


    Rail and armature current distributions in electromagnetic launchers

    Young, F.J. / Hughes, W.F. | Tema Archive | 1982


    Electromagnetic launchers

    Schaaf, J.C. jun. / Audeh, N.F. | Tema Archive | 1989