Single Piezo-Actuator Rotary-Hammering ( SPaRH ) Drill

  title={Single Piezo-Actuator Rotary-Hammering ( SPaRH ) Drill},
  author={Stewart Sherrit and Lukas Domm and Xiaoqi Bao and Yoseph Bar-Cohen and Zensheu Chang and Mircea Badescu},
The search for present or past life in the Universe is one of the most important objectives of NASA’s exploration missions. Drills for subsurface sampling of rocks, ice and permafrost are an essential tool for astrobiology studies on other planets. Increasingly, it is recognized that drilling via a combination of rotation and hammering offers an efficient and effective rapid penetration mechanism. The rotation provides an intrinsic method for removal of cuttings from the borehole while the… CONTINUE READING
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