The current notional architecture for the Mars Sample Return (MSR) campaign would require autonomous on-orbit rendezvous and capture of a sample container after it has been delivered to Mars orbit by a preceding MSR mission. As part of the complete orbital payload known as the Capture, Contain, and Return System (CCRS), a concept has been developed for autonomously sensing and capturing this Orbiting Sample (OS) container. The concept, comprised of a capture mechanism and multiple optical break-beam arrays, would detect and enclose the OS into CCRS, and engage a dust-tight seal to prevent the escape of the OS or other unsterilized particles. A challenging goal for the system is to close the lid prior to the OS coming into physical contact after entering CCRS in order to reduce the risk of unsterilized Mars particles on the surface of the OS from contaminating the outside of the spacecraft. The mechanical and sensor performance requirements were driven by the broader architecture of CCRS, OS rendezvous parameters, and Planetary Protection requirements regarding the interaction and handling of the OS. The mechanism and break-beam array concepts were designed accordingly, and kinematic simulations of the mechanism's behavior, combined with a Monte-Carlo simulation of OS rendezvous/collision behaviors and corresponding break-beam sensor responses verify compliance.


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    Title :

    Dynamic Modeling, Simulation, and Analysis of Orbiting Sample Capture for Potential Mars Sample Return


    Contributors:


    Publication date :

    2020-03-01


    Size :

    19356910 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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