Design concepts for an energy-efficient amphibious unmanned underwater vehicle

Cubero, Samuel N. and Billingsley, John (2015) Design concepts for an energy-efficient amphibious unmanned underwater vehicle. In: Machine vision and mechatronics in practice. Springer-Verlag, Heidelberg, Germany, pp. 209-223. ISBN 978-3-662-45513-5

Abstract

This paper describes the conceptual design and operating principles of an oscillating-foil propulsion system for an unmanned underwater vehicle called TURTLE ('Tele-operated Unmanned Robot for Telemetry and Legged Exploration'), currently under development. This UUV ('Unmanned Underwater Vehicle) will be designed to be a 6-legged swimming and walking amphibious robot, fitted with foils (or flat fins) which can be manipulated with several degrees of freedom to produce highly efficient underwater propulsion forces. The legs will each have four degrees of freedom, of which the fourth is rotation of a foil that is fitted to the 'shin' to provide propulsion for swimming. By manipulating the movements and rotations of this foil, propulsion forces can be generated to implement a variety of swimming modes, each with its own advantages and disadvantages. The foils attached to the fins allow the main body to be controlled in all six degrees of freedom. It will also be an amphibious robot that will be able to transition between swimming mode and walking mode, for walking on an underwater surface or over dry land if power considerations permit. It must be powerful and strong enough to support itself and light payloads while walking over rough or undulating surfaces commonly found on a beach. The mechanical design will allow the absolute position and orientation of the body to be accurately controlled relative to the ground surface, whether above or below water, for the purpose of precision control of onboard tools and sensors. The space frame construction method keeps water drag low and allows large scale, strong, rigid structures and manipulator limbs (or links) to be built. Space frames also keep material cost, weight and actuator energy usage to very low levels. Such lightweight and energy efficient robots will be useful in many practical applications, such as oil and gas exploration, drilling, mining, construction, automated agriculture, military transport and space exploration.


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Item Type: Book Chapter (Commonwealth Reporting Category B)
Refereed: Yes
Item Status: Live Archive
Additional Information: © Springer-Verlag Berlin Heidelberg 2015. Permanent restricted access to published version due to publisher copyright policy. Includes the best papers of the 20th International Conference on Mechatronics and Machine Vision in Practice held in Ankara, Turkey, September 18-20 September 2013, the 18th held in Brisbane December 6-7 2011 and the 16th held in Brunei June 22-24 2010.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 24 Mar 2015 01:23
Last Modified: 27 Jul 2016 04:55
Uncontrolled Keywords: robot; unmanned underwater vehicle; UUV; walking; swimming
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091303 Autonomous Vehicles
09 Engineering > 0906 Electrical and Electronic Engineering > 090602 Control Systems, Robotics and Automation
09 Engineering > 0911 Maritime Engineering > 091106 Special Vehicles
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1007/978-3-662-45514-2_18
URI: http://eprints.usq.edu.au/id/eprint/26942

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