Vehicles developed so far to explore the surface of the Moon and Mars are limited in speed both due to the vehicle's own dynamics in reduced gravity and due to the very particular rheology of the regoliths on which the wheels rest. This present limitation restricts the performance of rovers not only in terms of range but also in terms of robustness/stability in relation to the nature of the terrain.

In this context, the objective of this Doctorate is to develop robust models of four-wheeled vehicles in their dynamic behavior, in the same perspective as the dynamics of aircraft flight which allows to certify an aircraft in flight line, gust and turbulence. This approach allows for recommendations on the design of future rovers whose cruising speed could reach five meters per second.

The PhD develops a model - part of which will be analytical - integrating the structural characteristics of the rover, its damping, control and interface capabilities. This model is developed in parallel with the inventory of emerging technologies: hybrid structures, non-linear solid dampers, generalized predictive active control, flexible structural wheels, particulate models of the regolith.

A reference vehicle may be proposed, which will be compared to the performance previously achieved by the Apollo Lunar Rover Vehicle, which was able to reach three meters per second thanks to the skill of John Young. This dynamic and robotic architecture could effectively extend the performance of piloted vehicles, by integrating dynamic behavioral automation.

The PhD therefore integrates developments linked to the vehicle itself, but also to its operation and its environment. Consequently, this Doctorate brings together skills related to the dynamics and control of structures, the behavior and topology of planetary soils, and the architecture and integration of space technologies. These skills are reflected by the three proposed directors/co-directors.

The research will focus on:

1) Bibliography and state of the art related to the current strategy for autonomous planetary robotics, in the French and European context;

2) Drafting specifications for increased mobility, both in terms of mission and performance;

3) Development of a dynamic stability model considering a classic rover structure under lunar and Martian gravity;

4) Introduction of entropic elements: solid dampers, soil rheology, stabilization actuators;

5) Detailed study of dissipation models (vehicle, wheel, and soil) and available algorithms in Generalized Predictive Control;

6) Summary of recommendations for the architecture of an innovative vehicle suitable for planetary missions.

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For more Information about the topics and the co-financial partner (found by the lab!); contact Directeur de thèse - yves.gourinat@isae-supaero.fr

Then, prepare a resume, a recent transcript and a reference letter from your M2 supervisor/ engineering school director and you will be ready to apply online before March 13th, 2026 Midnight Paris time!