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Nature in engineering for monitoring the oceans: comparison of the energetic costs of marine animals and AUVs

Nature in engineering for monitoring the oceans: comparison of the energetic costs of marine animals and AUVs
Nature in engineering for monitoring the oceans: comparison of the energetic costs of marine animals and AUVs
The range of physiological adaptations possessed by marine animals allowing them to successfully operate in the marine environment is a plentiful source of inspiration for the designers of Autonomous Underwater Vehicles. This chapter compares the total energetic cost of straight line swimming for both marine animals and AUVs, using cost of transport (COT) as a comparative metric. COT is a normalised measure of the energetic cost of transporting the animal’s or vehicle’s mass over a unit distance. It includes non propulsion power requirements as well as considering the energy lost by actuators and mechanical couplings and energy lost in the wake. Comparisons presented in this chapter show that marine animals typically have higher optimum COT than engineered systems of equivalent size. However parallels may be drawn, for example, to increase range both marine animals and AUVs appear to favour reducing non-propulsion power costs and travelling slowly to ensure operating at the minimum COT.
978-1-84919-479-2
77
373-405
The Institution of Engineering and Technology
Phillips, A.B.
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Haroutunian, M.
48279456-d02d-4999-a8d0-20b5096c59a0
Man, S.K.
2334efaa-c23a-4b1e-94b7-6c1154b2208d
Murphy, A.J.
3c145f49-14f5-421c-b3a1-11a74c8d86ab
Boyd, S.W.
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Blake, J.I.R.
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Griffiths, G.
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Roberts, G.N.
Sutton, R.
Phillips, A.B.
f565b1da-6881-4e2a-8729-c082b869028f
Haroutunian, M.
48279456-d02d-4999-a8d0-20b5096c59a0
Man, S.K.
2334efaa-c23a-4b1e-94b7-6c1154b2208d
Murphy, A.J.
3c145f49-14f5-421c-b3a1-11a74c8d86ab
Boyd, S.W.
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Blake, J.I.R.
6afa420d-0936-4acc-861b-36885406c891
Griffiths, G.
2887c3c7-95f2-4834-b3f6-0284344d3580
Roberts, G.N.
Sutton, R.

Phillips, A.B., Haroutunian, M., Man, S.K., Murphy, A.J., Boyd, S.W., Blake, J.I.R. and Griffiths, G. (2012) Nature in engineering for monitoring the oceans: comparison of the energetic costs of marine animals and AUVs. In, Roberts, G.N. and Sutton, R. (eds.) Further Advances in Unmanned Marine Vehicles. (HASH(0xd538e00), 77) Stevenage, GB. The Institution of Engineering and Technology, pp. 373-405. (doi:10.1049/PBCE077E_ch17).

Record type: Book Section

Abstract

The range of physiological adaptations possessed by marine animals allowing them to successfully operate in the marine environment is a plentiful source of inspiration for the designers of Autonomous Underwater Vehicles. This chapter compares the total energetic cost of straight line swimming for both marine animals and AUVs, using cost of transport (COT) as a comparative metric. COT is a normalised measure of the energetic cost of transporting the animal’s or vehicle’s mass over a unit distance. It includes non propulsion power requirements as well as considering the energy lost by actuators and mechanical couplings and energy lost in the wake. Comparisons presented in this chapter show that marine animals typically have higher optimum COT than engineered systems of equivalent size. However parallels may be drawn, for example, to increase range both marine animals and AUVs appear to favour reducing non-propulsion power costs and travelling slowly to ensure operating at the minimum COT.

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Published date: 2012
Organisations: Ocean Technology and Engineering, Fluid Structure Interactions Group

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Local EPrints ID: 336783
URI: http://eprints.soton.ac.uk/id/eprint/336783
ISBN: 978-1-84919-479-2
PURE UUID: 662e52a0-8c15-421d-9847-99caf917418d
ORCID for A.B. Phillips: ORCID iD orcid.org/0000-0003-3234-8506
ORCID for J.I.R. Blake: ORCID iD orcid.org/0000-0001-5291-8233

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Date deposited: 07 Nov 2012 16:18
Last modified: 27 Apr 2022 01:47

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Contributors

Author: A.B. Phillips ORCID iD
Author: M. Haroutunian
Author: S.K. Man
Author: A.J. Murphy
Author: S.W. Boyd
Author: J.I.R. Blake ORCID iD
Author: G. Griffiths
Editor: G.N. Roberts
Editor: R. Sutton

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