A flight trajectory simulation method has been developed for calculating the six degree of freedom motion of fluid filled projectiles. Numerically calculated internal fluid moments and experimentally known aerodynamic forces and moments are coupled to the projectile motion. Comparisons of predicted results with flight test data of an M483 155mm artillery projectile with a highly viscous payload confirm the accuracy of the simulation. This simulation clearly shows that the flight instability is due to the growth of the nutation component of angular motion caused by the viscous effects of the fluid payload. This simulation procedure, when used in conjunction with the previously developed method for calculating internal fluid moments, allows the designer to examine the effects of various liquid payloads and container geometries on the dynamic behavior of flight vehicles. (ERA citation 10:037321)


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    Titel :

    Flight Trajectory Simulation of Fluid Payload Projectiles


    Beteiligte:
    H. R. Vaughn (Autor:in) / W. P. Wolfe (Autor:in) / W. L. Oberkampf (Autor:in)

    Erscheinungsdatum :

    1985


    Format / Umfang :

    10 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Flight trajectory simulation of fluid payload projectiles

    VAUGHN, H. R. / WOLFE, W. P. / OBERKAMPF, W. L. | AIAA | 1986


    Flight trajectory simulation of fluid payload projectiles

    VAUGHN, H. / WOLFE, W. / OBERKAMPF, W. | AIAA | 1985




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