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Development of a Piezoelectric Rotary Hammer Drill

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dc.contributor.author Domm, Lukas N.
dc.date.accessioned 2013-08-07T22:03:55Z
dc.date.available 2013-08-07T22:03:55Z
dc.date.issued 2011-08
dc.identifier.citation ASA Undergraduate Student Research Program (USRP), Pasadena, California, August 2011 en_US
dc.identifier.clearanceno 11-1775
dc.identifier.uri http://hdl.handle.net/2014/43477
dc.description.abstract The Piezoelectric Rotary Hammer Drill is designed to core through rock using a combination of rotation and high frequency hammering powered by a single piezoelectric actuator. It is designed as a low axial preload, low mass, and low power device for sample acquisition on future missions to extraterrestrial bodies. The purpose of this internship is to develop and test a prototype of the Piezoelectric Rotary Hammer Drill in order to verify the use of a horn with helical or angled cuts as a hammering and torque inducing mechanism. Through an iterative design process using models in ANSYS Finite Element software and a Mason’s Equivalent Circuit model in MATLAB, a horn design was chosen for fabrication based on the predicted horn tip motion, electromechanical coupling, and neutral plane location. The design was then machined and a test bed assembled. The completed prototype has proven that a single piezoelectric actuator can be used to produce both rotation and hammering in a drill string through the use of a torque inducing horn. Final data results include bit rotation produced versus input power, and best drilling rate achieved with the prototype. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. en_US
dc.subject piezoelectric actuator en_US
dc.subject sampling en_US
dc.title Development of a Piezoelectric Rotary Hammer Drill en_US
dc.type Student Report en_US


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