| タイトル | Percussive Augmenter of Rotary Drills for Operating as a Rotary-Hammer Drill |
| 本文（外部サイト） | http://hdl.handle.net/2060/20150003193 |
| 著者（英） | Scott, James Samson; Sherrit, Stewart; Bar-Cohen, Yoseph; Aldrich, Jack Barron; Badescu, Mircea; Bao, Xiaoqi |
| 著者所属（英） | California Inst. of Tech. |
| 発行日 | 2014-02-04 |
| 言語 | eng |
| 内容記述 | A percussive augmenter bit includes a connection shaft for mounting the bit onto a rotary drill. In a first modality, an actuator percussively drives the bit, and an electric slip-ring provides power to the actuator while being rotated by the drill. Hammering action from the actuator and rotation from the drill are applied directly to material being drilled. In a second modality, a percussive augmenter includes an actuator that operates as a hammering mechanism that drives a free mass into the bit creating stress pulses that fracture material that is in contact with the bit. |
| NASA分類 | Mechanical Engineering |
| 権利 | No Copyright |
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