JPL Technical Report Server

Browsing by Subject "rotary-hammering"

Browsing by Subject "rotary-hammering"

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  • Donnelly, Christopher (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011., 2011-08)
    Hammering drills are effective in fracturing the drilled medium while rotary drills remove cuttings. The combination provides a highly effective penetration mechanism. Piezoelectric actuators were integrated into an adapter ...