Mars exploration programs that require surface mobility, such as geology studies, search for past life or infrastructure deployment for future manned missions, make use of wheeled rovers.
The total mass of the rover and its volume during lauchching phase are very constrained, thus resulting in moderate ability to overcome obstacles, despite the efforts in optimising the kinematics design, due to the limitations on wheel diameter.
This limitation can be turned away using inflating or unfolding wheels that can reach large diameters and thus present high cross-country ability, still being compatible with the launching constraints.
The dragstic changes in the mechanical design, relative to the conventional rigid wheels makes necessary to review the whole rover operational scenario and equipment design, as well as the payload accommodation.
The objective of the study is to compare a classical rover design with the unfolding one with the same mission objectives and constraints
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