Chapter
Apr 26, 2012
Results from Testing of Two Rotary Percussive Drilling Systems
Authors: Kristopher Kriechbaum [email protected], Kyle Brown, Ian Cady, Max von der Heydt, Kerry Klein, Eric Kulczycki, and Avi OkonAuthor Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
The developmental test program for the MSL (Mars Science Laboratory) rotary percussive drill examined the effect of various drill input parameters on the drill penetration rate. Some of the input parameters tested were drill angle with respect to gravity and percussive impact energy. The suite of rocks tested ranged from a high strength basalt to soft Kaolinite clay. We developed a hole start routine to reduce high sideloads from bit walk. The ongoing development test program for the IMSAH (Integrated Mars Sample Acquisition and Handling) rotary percussive corer uses many of the same rocks as the MSL suite. An additional performance parameter is core integrity. The MSL development test drill and the IMSAH test drill use similar hardware to provide rotation and percussion. However, the MSL test drill uses external stabilizers, while the IMSAH test drill does not have external stabilization. In addition the IMSAH drill is a core drill, while the MSL drill uses a solid powdering bit. Results from the testing of these two related drilling systems is examined.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Jet Propulsion Laboratory, California Institute of Technology,. E-mail: [email protected]
Kyle Brown
Jet Propulsion Laboratory, California Institute of Technology
Ian Cady
Jet Propulsion Laboratory, California Institute of Technology
Max von der Heydt
Jet Propulsion Laboratory, California Institute of Technology
Kerry Klein
Jet Propulsion Laboratory, California Institute of Technology
Eric Kulczycki
Jet Propulsion Laboratory, California Institute of Technology
Avi Okon
Jet Propulsion Laboratory, California Institute of Technology
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