As small satellite-mission concepts that require travel farther from their traditional domain of low-Earth orbit are being considered, there is a growing need to develop small-scale propulsion systems that can provide the necessary net impulse to enable deep-space operation. The High Specific-Impulse Electrospray Explorer for Deep-Space (HiSPEED) project is an example concept considered for this paper, as it would be a small satellite that uses electrospray thrusters to navigate along a low-thrust spiral trajectory from Earth to a near-Earth asteroid. The NASA Jet Propulsion Laboratory Small Satellite Dynamics Testbed operates simulation and air- bearing testing environments. This paper focuses on its planar air-bearing platform used to create a nearly frictionless environment in three degrees of freedom: two translational and one rotational. The platform maneuvers using eight compressed air thrusters controlled by an onboard single-board computer using position feedback from a motion-capture system. This paper discusses the design, development, and testing of a closed-loop controller for this platform that enables trajectory following with position error less than 4 cm. The paper presents data from tests representative of HiSPEED spiral escape trajectories and operations in proximity to an asteroid, along with implications for HiSPEED and similar concepts.


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    Titel :

    High Specific-Impulse Electrospray Explorer Trajectory Guidance and Control Air Bearing Demonstration


    Beteiligte:
    Moncton, Michael (Autor:in) / Jia-Richards, Oliver (Autor:in) / Sternberg, David (Autor:in) / Lo, Kevin (Autor:in) / Mohan, Swati (Autor:in)


    Erscheinungsdatum :

    2024-05-27


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch