Abstract Once addressed as a side topic in planetary exploration, the investigation of small solar system bodies has now become one of the corner stones in the international science community in order to study the formation of the solar system and the evolution of life within. For rendezvous spacecraft, small carry-on landers have proven to be valuable assets, and to have a positive impact on the overall mission cost, by avoiding additional complexity of the main satellite and transferring the risk of close surface maneuvers entirely or at least to some extend to an independent deployable system. However, carry-on landers have been designed currently to land on very small bodies only, but medium-size class objects between diameters of 10–50 km are of great interest as well. In this paper we classify carry-on landers with respect to their touchdown and operational strategy, evaluate the constraints of ballistic deployments for different target bodies as well as identify the niche for using simple honeycomb impact dampers compared to optional retro-propulsion systems. Further, we introduce the system design of an attitude-stabilized Shell Lander using a generic instrument carrier attached to a single ejectable crash-pad with stabilizing capability to protect the instrument carrier from structural damage, limit internal shock loads for sensitive payloads as well as reduce the amount of bounces on the surface. Finally, we present a mission architecture for a reference case to the Martian moon Phobos as well as provide a proof of concept based on laboratory impact tests and a multi-body simulation to analyze touchdown dynamics including terrain interaction, shell-shedding and bouncing.

    Highlights A new concept for a small body lander is proposed. We evaluate the constraints of ballistic deployments for different target bodies. We introduce the system design of an attitude-controlled Shell Lander. We present a mission architecture for a reference case to the Martian moon Phobos. We provide a proof of concept based on laboratory impact tests and MBS analysis.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Size matters - The shell lander concept for exploring medium-size airless bodies


    Beteiligte:
    Grimm, Christian D. (Autor:in) / Witte, Lars (Autor:in) / Schröder, Silvio (Autor:in) / Wickhusen, Kai (Autor:in)

    Erschienen in:

    Acta Astronautica ; 173 ; 91-110


    Erscheinungsdatum :

    2020-02-01


    Format / Umfang :

    20 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Active electrostatic flight for airless bodies

    Quadrelli, Marco B. / Garrett, Henry / Castillo, Julie et al. | IEEE | 2017



    AIRLESS TIRE

    OKANO TOSHIHIKO / SUZUKI TAKUMA | Europäisches Patentamt | 2022

    Freier Zugriff

    AIRLESS TIRE

    BYEON GIL JAE | Europäisches Patentamt | 2022

    Freier Zugriff

    AIRLESS WHEEL

    KIM MIN-SU / KIM KYUNG HOON | Europäisches Patentamt | 2022

    Freier Zugriff