A reduced-order model of hammer dynamics validated against benchtop tests shows repeatable percussive impacts with mechanical specific energies of 74-360 MJ/m3 in rock simulants, supporting the architecture as a candidate for low-power deep drilling on Mars.
Drilling bits in percussive-rotary drilling technology (down the hole dth).AGH Drilling, Oil, Gas, 29(4):453–462
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Evaluation and Modeling of Pneumatic Percussive Drill for Martian Subsurface Access
A reduced-order model of hammer dynamics validated against benchtop tests shows repeatable percussive impacts with mechanical specific energies of 74-360 MJ/m3 in rock simulants, supporting the architecture as a candidate for low-power deep drilling on Mars.