DROD: bio-robotic drill/sampler for planetary subterranean exploration: experiments and challenges

Area of Science:

• Robotics
• Biomimetics
• Planetary Science

Background:

• Space exploration requires lightweight, energy-efficient drills and sampling mechanisms.
• Reducing spaceship costs and extending exploration time are critical for extraterrestrial missions.

Purpose of the Study:

• To investigate the feasibility of a novel bioinspired drill for rover exploration.
• To develop an integrated robotic solution for space exploration tasks.

Main Methods:

• Experimental investigation of a dual reciprocation and oscillation drill (DROD).
• Bioinspiration from wood-wasp and sand-fish lizard.
• Integration of miniature sample compartment and toothed stems.

Main Results:

• Achieved a new penetration depth of 820 mm using the reciprocation drilling technique.
• Successfully performed the first sampling experiment, collecting 20 g (30 cm³) of material.
• Demonstrated a novel integrated robotic solution for rover exploration.

Conclusions:

• The developed DROD is a feasible solution for space exploration drilling and sampling.
• Future developments include rover integration and potential for subterranean horizontal drilling.
• The bioinspired design offers significant advantages in weight, size, and energy efficiency for space missions.