While the ability to model the state of a space system over time is essential during spacecraft operations, the use of time-based simulations remains rare in preliminary design. The absence of the time dimension in most traditional early design tools can however become a hurdle when designing complex systems whose development and operations can be disrupted by various events, such as delays or failures. As the value delivered by a space system is highly affected by such events, exploring the trade space for designs that yield the maximum value calls for the explicit modeling of time.This paper discusses the use of discrete-event models to simulate spacecraft development schedule as well as operational scenarios and on-orbit resources in the presence of uncertainty. It illustrates how such simulations can be utilized to support trade studies, through the example of a tool developed for DARPA's F6 program to assist the design of "fractionated spacecraft".


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    Title :

    Modeling Temporal Processes in Early Spacecraft Design: Application of Discrete-Event Simulations for Darpa's F6 Program


    Contributors:

    Conference:

    AIAA SPACE 2012 Conference & Exposition ; 2012 ; Pasadena, CA, United States


    Publication date :

    2012-09-11


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    MODELING TEMPORAL PROCESSES IN EARLY SPACECRAFT DESIGN: APPLICATION OF DISCRETE-EVENT SIMULATIONS FOR DARPA'S F6 PROGRAM

    Dubos, G.F. / Cornford, S. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2012



    Evaluating a Fractionated Spacecraft system: A business case tool for DARPA's F6 program

    Cornford, Steven / Shishko, Robert / Wall, Stephen et al. | IEEE | 2012


    DARPA's Space History

    Sachdev, D. K. | AIAA | 2009


    DARPA's New Cognitive System Vision

    Lemnios, Z. J. / NASA | British Library Conference Proceedings | 2003