Increasingly, NASA exploration missions are including in-situ sampling tasks. The difficulties of acquiring samples have been identified by the designers of the 2007 Mars Phoenix Scout and the 2011 Mars Science Laboratory missions. In particular, it has been indicated that planetary drilling faces great challenges. The associated challenges grow significantly with the depth of drilling and it is the objective of the current study to develop an autonomous wireline rotary-percussive drill (called Auto-Gopher) that can reach a depth of several meters. In developing the Auto-Gopher efforts are made to take advantage of the hammering capabilities of the Ultrasonic/Sonic piezoelectric mechanism to fracture rocks using low preload. This mechanism was demonstrated in 2005 to reach about 2-m deep in ice at Lake Vida, Antarctica. The augmentation of the hammering by rotation of the bit having flutes provides both effective cuttings removal and faster drilling. The progress in developing the Auto-Gopher will be described and discussed in this paper.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Deep Drilling and Sampling via Compact Low-Mass Rotary-Hammer Auto-Gopher


    Beteiligte:
    Bar-Cohen, Yoseph (Autor:in) / Badescu, Mircea (Autor:in) / Bao, Xiaoqi (Autor:in) / Sherrit, Stewart (Autor:in) / Zacny, Kris (Autor:in) / Sadick, Shazad (Autor:in) / Ji, Jerri (Autor:in)

    Kongress:

    12th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments; and Fourth NASA/ARO/ASCE Workshop on Granular Materials in Lunar and Martian Exploration ; 2010 ; Honolulu, Hawaii, United States


    Erschienen in:

    Erscheinungsdatum :

    2010-03-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Deep Drilling and Sampling via Compact Low-Mass Rotary-Hammer Auto-Gopher

    Bar-Cohen, Y. / Badescu, M. / Bao, X. et al. | British Library Conference Proceedings | 2010


    Deep Drilling Using the Biologically Inspired Auto-Gopher

    Bar-Cohen, Y. / Badescu, M. / Lee, H. J. et al. | NTRS | 2016



    Auto-Gopher-2 (AG2) - an autonomous wireline piezo-percussive drill for deep excavation

    Paulsen, Gale L. / Kim, Daniel / Mellerowicz, Bolek et al. | NTRS | 2019


    Das FlaLFKSystem SA-13/GOPHER

    Kraftfahrwesen | 1988