Preliminary Analysis of Vehicle/Soil Interaction for a Mars Sub- Surface Ground Penetrating Mole

Computer Science – Robotics

Scientific paper

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Scientific paper

It is conceived that future robotic Mars missions will have to employ mole penetration of the Martian surface if they are to have any chance of success in detecting possible fossilised biota. At least one European mission of such a nature called Vanguard is being proposed [Ellery et al 2002]. One of the critical technologies from a robotics viewpoint is the deployment of a ground-penetrating mole from a lander or rover. The deployment mechanism must be simple, of low mass, and with low power consumption. These issues place strong constraints on its design. The performance and design of such a mechanism will be determined by the required applied forces to be exerted on the mole during initial penetration into the ground. Presented here is a preliminary analysis of the force/torque characteristics of the mole/soil interaction.

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