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Design and Comparative Study of Mechanisms for Variable Ground Clearance for an Unmanned Ground Vehicle

Published: 28 December 2021 Publication History

Abstract

Ground clearance is an important parameter for the all-terrain vehicles. Higher ground clearance is required to move over rough terrains with larger obstacles. Simultaneously, the same vehicle may have to move over plane lands with higher speed, but with that same fixed ground clearance. This affects the performance, stability and fuel economy (power) of the vehicles. Hence it is always desirable to design a vehicle with variable ground clearance for multiple applications on different terrains. Unmanned Ground Vehicle (UGV) is such a vehicle which has potential for application for military or security and commercial purposes with capability of movements over rough terrains as well as plane roads, but commonly with fixed ground clearance.
Presently a medium, indigenous UGV is being developed for which the variable ground clearance mechanism has to be designed. The variable ground clearance is proposed to be designed using pneumatic or hydraulic or electric actuation systems. A qualitative comparison has been performed to identify the best suited mechanism from the point of simplicity, response-time and number of sub-components. It has been found that adjustable mechanism using electric actuator is most suitable for UGV in terms of response, simplicity and cost, though a separate suspension may have to be added.

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cover image ACM Other conferences
AIR '21: Proceedings of the 2021 5th International Conference on Advances in Robotics
June 2021
348 pages
ISBN:9781450389716
DOI:10.1145/3478586
© 2021 Association for Computing Machinery. ACM acknowledges that this contribution was authored or co-authored by an employee, contractor or affiliate of a national government. As such, the Government retains a nonexclusive, royalty-free right to publish or reproduce this article, or to allow others to do so, for Government purposes only.

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 28 December 2021

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