This paper presents the results of a study to develop an analytical model capable of predicting the forces acting on a tank caused by large-amplitude propellant motion. This effort contributed to an analysis of the influence of propellant dynamics on separation of the External Tank from the space shuttle orbiter. This paper is concerned with an experimental investigation that aided in development and verification of the analytical model. A scaling approach was developed that allowed the liquid motion to be simulated in subscale tanks. Liquid reorientation forces were measured using two test systems. One operated in the low-gravity environment produced in a drop tower and the second operated aboard the KC-135 'zero-g' test aircraft. The manner of liquid motion, influence of various factors, and the measured forces are discussed.


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    Title :

    Measurement of forces due to liquid motion in a propellant tank


    Contributors:

    Conference:

    Conference on Structures, Structural Dynamics and Materials ; 1981 ; Atlanta, GA


    Publication date :

    1981-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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