Hiroki Yoshikawa
Mechanical Systems Engineering, Tokyo City University, Japan
Takatsugu Oda
Mechanical Systems Engineering, Tokyo City University, Japan
Kenichiro Nonaka
Mechanical Systems Engineering, Tokyo City University, Japan
Kazuma Sekiguchi
Mechanical Systems Engineering, Tokyo City University, Japan
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http://dx.doi.org/10.3384/ecp17132901Published in: Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017
Linköping Electronic Conference Proceedings 132:99, p. 901-907
Published: 2017-07-04
ISBN: 978-91-7685-575-1
ISSN: 1650-3686 (print), 1650-3740 (online)
Planetary exploration rovers have to accomplish various missions on uneven and loose terrain. In recent years, systems of rovers adopting terramechanics which determine the force and moment characteristics of the wheel on loose soil is studied. In this study, using Modelica language, we construct a wheel model based on terramechanics, and we identify the wheel characteristics as a linear for a control. We conduct a numerical simulation of the rover using a controller including the identified longitudinal force model. It is shown that when the rover follows a straight line on a plane, the longitudinal force model identified using known soil parameters has sufficient accuracy on the wheel response based on terramechanics and could be used as a control model.
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