The slosh dynamics of propellant tanks can be represented by an equivalent mass-pendulum-dashpot mechanical model. The parameters of this equivalent model, identified as slosh mechanical model parameters, are slosh frequency, slosh mass, and pendulum hinge point location. They can be obtained by both analysis and testing for discrete fill levels. Anti-slosh baffles are usually needed in propellant tanks to control the movement of the fluid inside the tank. Lateral slosh testing, involving both random excitation testing and free-decay testing, are performed to validate the slosh mechanical model parameters and the damping added to the fluid by the anti-slosh baffles. Traditional modal analysis procedures were used to extract the parameters from the experimental data. Test setup of sub-scale tanks will be described. A comparison between experimental results and analysis will be presented.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Validation of Slosh Model Parameters and Anti-Slosh Baffle Designs of Propellant Tanks by Using Lateral Slosh Testing


    Beteiligte:

    Kongress:

    28th Aerospace Testing Seminar ; 2012 ; Los Angeles, CA, United States


    Erscheinungsdatum :

    16.10.2012


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Propellant slosh loads

    USA, National Aeronautics and Space Administration | TIBKAT | 1968


    Optimization of slosh baffle geometry

    Buchanan, H. | NTRS | 1965


    Parametric Study of a Propellant Tank Slosh Baffle

    Chintalapati, Sunil / Kirk, Daniel | AIAA | 2008