Detailed experiments were performed in order to determine electrode ablation and friction effects in a round-bore railgun. An accelerating model was developed which includes electrode-ablation effects, the viscous arc drag, and the mechanical friction of the projectile. In addition, a novel nonlinear electrode-ablation model was found to describe the experimental data very well. A model for the mechanical friction force between the projectile and bore wall was applied to the equation of motion. The position/time data of the projectile acceleration could be adjusted with quite reasonable friction effects. Theoretical and experimental results show that the 'ideal' projectile velocity is decreased by about 28%: 15% due to electrode ablation, 9% due to mechanical friction, and about 4% due to viscous arc drag


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Friction and ablation measurements in a round bore railgun


    Weitere Titelangaben:

    Reibungs- und Abschmelzmessungen in einem zylindrischen Leitschienenbeschleuniger


    Beteiligte:
    Aigner, S. (Autor:in) / Igenbergs, E. (Autor:in)


    Erscheinungsdatum :

    1989


    Format / Umfang :

    7 Seiten, 14 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


    Testing of a high performance, precision-bore railgun

    Peterson, D.R. / Weeks, D.A. / Zowarka, R.C. et al. | Tema Archiv | 1986