This paper describes finite element analyses and correlation studies to predict deformations and vibration modes/frequencies of a 20-meter solar sail system developed by ATK Space Systems. Under the programmatic leadership of NASA Marshall Space Flight Center's In-Space Propulsion activity, the 20-meter solar sail program objectives were to verify the design, to assess structural responses of the sail system, to implement lessons learned from a previous 10-meter quadrant system analysis and test program, and to mature solar sail technology to a technology readiness level (TRL) of 5. For this 20 meter sail system, static and ground vibration tests were conducted in NASA Glenn Research Center's 100 meter diameter vacuum chamber at Plum Brook station. Prior to testing, a preliminary analysis was performed to evaluate test conditions and to determine sensor and actuator locations. After testing was completed, an analysis of each test configuration was performed. Post-test model refinements included updated properties to account for the mass of sensors, wiring, and other components used for testing. This paper describes the development of finite element models (FEM) for sail membranes and masts in each of four quadrants at both the component and system levels, as well as an optimization procedure for the static test/analyses correlation.


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    Titel :

    20 Meter Solar Sail Analysis and Correlation


    Beteiligte:
    Taleghani, B. K. (Autor:in) / Lively, P. S. (Autor:in) / Banik, J. (Autor:in) / Murphy, D. M. (Autor:in) / Trautt, T. A. (Autor:in)

    Kongress:

    53rd JANNAF Propulsion Meeting/ 2nd Liquid Propulsion Subcommittee/ Spacecraft Propulsion Subcommittee Joint Meeting ; 2005 ; Monterey, CA, United States


    Erscheinungsdatum :

    01.01.2005


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




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