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Deep drilling and sampling via the wireline auto-gopher driven by piezoelectric percussive actuator and EM rotary motor

Show simple item record Bar-Cohen, Yoseph Badescu, Mircea Sherrit, Stewart Zacny, Kris Paulsen, Gale L Beegle, Luther Bao, Xiaoqi 2012-11-28T16:12:59Z 2012-11-28T16:12:59Z 2012-03-12
dc.identifier.citation SPIE Smart Structures and Materials/NDE Symposium, San Diego, California, March 10-14, 2012 en_US
dc.identifier.clearanceno 12-0503
dc.description.abstract The ability to penetrate subsurfaces and perform sample acquisition at depths of meters is critical for future NASA in-situ exploration missions to bodies in the solar system, including Mars and Europa. A corer/sampler was developed with the goal of acquiring pristine samples by reaching depths on Mars beyond the oxidized and sterilized zone. To developed rotary-hammering coring drill, called Auto-Gopher, employs a piezoelectric actuated percussive mechanism for breaking formations and an electric motor rotates the bit to remove the powdered cuttings. This sampler is a wireline mechanism that is incorporated with an inchworm mechanism allowing thru cyclic coring and core removal to reach great depths. The penetration rate is being optimized by simultaneously activating the percussive and rotary motions of the Auto-Gopher. The percussive mechanism is based on the Ultrasonic/Sonic Drill/Corer (USDC) mechanism that is driven by piezoelectric stack and that was demonstrated to require low axial preload. The Auto-Gopher has been produced taking into account the a lessons learned from the development of the Ultrasonic/Sonic Gopher that was designed as a percussive ice drill and was demonstrated in Antarctica in 2005 to reach about 2 meters deep. A field demonstration of the Auto-Gopher is currently being planned with objective of reaching as deep as 3 to 5 meters in tufa subsurface. 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, 2012. en_US
dc.subject drilling en_US
dc.subject deep drilling en_US
dc.subject Auto-Gopher en_US
dc.subject Auto-Gopher en_US
dc.title Deep drilling and sampling via the wireline auto-gopher driven by piezoelectric percussive actuator and EM rotary motor en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Mechanical Engineering en_US

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