Abstract Charged spacecraft experience electrostatic forces and torques from both charged neighboring spacecraft and the local space environment. These forces and torques can be used for a variety of novel touchless actuation concepts. In contrast to the multipole method which provides an expansion of the potential field, this paper presents a direct binomial series expansion of the forces and torques called the Appropriate Fidelity Measures (AFMs) method. A two-stage process is presented where first the force and torque vectors are expanded assuming a known charge distribution, followed by a second stage which provides an approximation of the charge distribution through the susceptibilities of the measures. AFMs provide a direct analytical solution and thus provide new insight for charged single- and two-body configurations. The accuracy of a truncated expansion is numerically studied and validated. With a second-order AFM solution, the errors drop below 5% at separations greater than 6 craft diameters. This new method is well-suited for control analysis due to the analytical solutions produced. An AFM solution of the torque on an axis-symmetric cylinder is developed that yields closed form analytic solutions that match prior numerically fit solutions.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Spacecraft Electrostatic Force and Torque Expansions Yielding Appropriate Fidelity Measures


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2019-03-15


    Format / Umfang :

    22 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch







    High-Fidelity Simulation for Spacecraft Autonomy Development

    Enright, John P. | Online Contents | 2002


    Electrostatic generators for spacecraft

    Denholm, A.S. / Coenraads, C.N. / McCoy, F.J. | Engineering Index Backfile | 1962