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Terramechanics Modeling of Mars Surface Exploration Rovers for Simulation and Parameter Estimation

[+] Author Affiliations
Karl Iagnemma, Carmine Senatore

Massachusetts Institute of Technology, Cambridge, MA

Brian Trease, Randel Lindemann

Caltech / JPL, Pasadena, CA

Raymond Arvidson, Keith Bennett, Amy Shaw, Feng Zhou, Lauren Van Dyke

Washington University, St. Louis, MO

Paper No. DETC2011-48770, pp. 805-812; 8 pages
doi:10.1115/DETC2011-48770
From:
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4: 8th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A and B
  • Washington, DC, USA, August 28–31, 2011
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5481-5
  • Copyright © 2011 by ASME

abstract

In 1997 and 2004, small wheeled robots (“rovers”) landed on the surface of Mars to conduct scientific experiments focused on understanding the planet’s climate history, surface geology, and potential for past or present life. Recently, the Mars Exploration Rover (MER) “Spirit” became deeply embedded in regolith at a site called Troy, ending its mission as a mobile science platform. The difficulty faced in navigating mobile robots over sloped, rocky, and deformable terrain has highlighted the importance of developing accurate simulation tools for use in a predictive mobility modeling capacity. These simulation tools require accurate knowledge of terrain model parameters. This paper describes a terramechanics-based tool for simulation of rover mobility. It also describes ongoing work toward estimation of terrain parameters of Mars soil.

Copyright © 2011 by ASME

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