Title: Terramechanics and its applications to the evaluation of terrestrial and extraterrestrial vehicle mobility: theory into practice

Authors: J.Y. Wong

Addresses: Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Ontario K1S 5B6, Canada; Vehicle Systems Development Corporation, Ottawa, Ontario K2E 7J7, Canada

Abstract: This paper traces the development of terramechanics - the study of the mechanics of vehicle-terrain interaction that provides the foundation for a comprehensive understanding of the behaviour of a vehicle operating on unprepared terrain. It highlights the development of computer-aided methods for performance and design evaluation of tracked and off-road wheeled vehicles, based on the principles of terramechanics. Examples of the applications of these computer-aided methods to guiding the development and design of off-road vehicles on earth, as well as the evaluation of the performance of rovers for exploration of the Moon, Mars and beyond, are presented. These signify that results of research on terramechanics have been put into engineering practice in enhancing the development of terrestrial and extraterrestrial vehicles. Prospects for further development of terramechanics, as well as challenges and opportunities in the field, are reviewed.

Keywords: computer-aided methods; extraterrestrial rovers; off-road vehicles; terramechanics; terrestrial vehicles; vehicle mobility; vehicle-terrain interaction; tracked vehicles; wheeled vehicles; space exploration vehicles.

DOI: 10.1504/IJVD.2014.063834

International Journal of Vehicle Design, 2014 Vol.65 No.4, pp.384 - 410

Accepted: 04 Nov 2013
Published online: 30 Oct 2014 *

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