All spacecraft are launched from the Earth as payloads on a launch vehicle. During portions of the launch profile, the spacecraft could be subjected to nearly purely translational oscillatory lateral motions as the launch vehicle control system guides the rocket along its flight path. All partially-filled liquids tanks, even those with diaphragms, exhibit sloshing behavior under these conditions and some tanks can place large loads on their support structures if the sloshing is in resonance with the control system oscillation frequency. The objectives of this project were to conduct experiments using a full-scale model of a flight tank to 1) determine whether launch vehicle vibrations can cause the diaphragm to achieve a repeatable configuration, regardless of initial condition, and 2) identify the slosh characteristics of the propellant tank under flight-like lateral motions for different diaphragm shapes and vibration levels. The test results show that 1) the diaphragm shape is not affected by launch vibrations, and 2) the resonance-like behavior of the fluid and diaphragm is strongly affected by the nonlinear stiffness and damping provided by the diaphragm.


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    Titel :

    Fluid Sloshing Characteristics in Spacecraft Propellant Tanks with Diaphragms


    Beteiligte:
    Green, Steve (Autor:in) / Burkey, Russell (Autor:in) / Viana, Flavia (Autor:in) / Sudermann, James (Autor:in)

    Kongress:

    43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit ; 2007 ; Cincinnati, OH, United States


    Erscheinungsdatum :

    08.07.2007


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Fluid Sloshing Characteristics in Spacecraft Propellant Tanks with Diaphragms

    Green, Steve / Burkey, Russell / Viana, Flavia et al. | AIAA | 2007


    Fluid Sloshing Characteristics in Spacecraft Propellant Tanks with Diaphragms AIAA Paper

    Green, S. / Burkey, R. / Viana, F. et al. | British Library Conference Proceedings | 2007


    CFD Fuel Slosh Modeling of Fluid-Structure Interaction in Spacecraft Propellant Tanks with Diaphragms

    Sances, Dillon J. / Gangadharan, Sathya N. / Sudermann, James E. et al. | NTRS | 2010


    CFD Fuel Slosh Modeling of Fluid-Structure Interaction in Spacecraft Propellant Tanks with Diaphragms

    Sances, D. / Gangadharan, S. / Sudermann, J. et al. | British Library Conference Proceedings | 2010


    CFD Fuel Slosh Modeling of Fluid-Structure Interaction in Spacecraft Propellant Tanks with Diaphragms

    Sances, Dillon / Gangadharan, Sathya / Sudermann, James et al. | AIAA | 2010