This paper discusses the results of high-pressure (up to 350 MPa) railgun experiments. The gun is designed both to be capable of high-pressure operation without structural damage and to be readily disassembled for inspection, maintenance and component testing. Considerable effort has been invested to develop techniques to produce and measure smooth, extremely precise (greater than 5 microseconds of variation) bores. We have not deliberately varied bore precision on performance, but our experience suggests that if two otherwise identical railguns, one with a polished, high-precision bore, were fired under identical conditions, the precisely finished gun would achieve a higher muzzle velocity. Very high accelerations have been achieved (greater than 107 m/s2. A 2-g projectile has been accelerated to 5 km/s in a 13 mm square-bore gun only 1 m long. Projectiles with an L/D as small as 0.65 have been successfully accelerated. Projectiles with smaller L/Ds have not yet been tested to determine the minimum L/D which can be successfully accelerated. A number of different insulator materials ranging from common float glass to fused quartz have been tested.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Testing of a high performance, precision-bore railgun


    Weitere Titelangaben:

    Test einer Hochleistungs-Elektromagnet-Kanone mit Praezisionsbohrung


    Beteiligte:
    Peterson, D.R. (Autor:in) / Weeks, D.A. (Autor:in) / Zowarka, R.C. (Autor:in) / Cook, R.W. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1986


    Format / Umfang :

    7 Seiten, 14 Bilder, 9 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    In-bore railgun projectile velocity

    Bauer, D.P. / Barber, J.P. | Tema Archiv | 1986


    Effect of in-bore gas on railgun performance

    Rolader, G.E. / Batteh, J.H. | Tema Archiv | 1991


    Electromagnetic railgun extended-life bore material tests results

    Jackson, G.L. / Farris, L.K. / Tower, M.M. | Tema Archiv | 1986


    Friction and ablation measurements in a round bore railgun

    Aigner, S. / Igenbergs, E. | Tema Archiv | 1989


    Producing and gauging precision railgun bores

    Peterson, D.R. / Harville, M.H. / Weldon, W.F. et al. | Tema Archiv | 1989