A wireless sensor network for measuring ship responses in abnormal waves
A wireless sensor network for measuring ship responses in abnormal waves
The responses of a ship to abnormal waves are of considerable importance due to the severe nature of such wave-ship encounters. To fully investigate the influence of abnormal waves on ship design, experimental investigations need to include both the directional aspect of abnormal waves and the forward speed of the vessel.
This paper presents the development of a novel wireless sensor network as an alternative to conventional towing tank methods for recording rigid body motions, accelerations and distortions in regular and irregular waves, including the influence of abnormal waves. Key advantages of such sensors are that they are lightweight, capable of providing a large range of information from an individual test, and are a simple method that allows the measurement of responses of a model in directional seas (either a wave basin or open water) without the limitation of a shore-based acquisition system.
Use of the wireless sensor network is validated in towing tank experiments via regular wave seakeeping tests, and tests in random and abnormal waves. Results show good agreement with conventional acquisition methods, although some improvement in the method of obtaining heave is desirable. In addition, a discussion is included of the influence of abnormal waves on ship responses.
Overall the wireless sensor network shows significant potential for obtaining responses a ship in a range of sea states. There is good agreement with responses measured using conventional techniques and levels of uncertainty are low, in general less than 5%. The integration of additional hardware such as synchronised video provides a useful tool for visualising wave encounters.
Bennett, S.
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Winden, B.
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Brooks, Christopher James
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Turnock, S.R.
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Hudson, D.A.
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Forrester, A.I.J.
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Taunton, D.J.
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Bennett, S.
6c2fda55-1416-4cfa-ab39-9f6eea640b95
Winden, B.
78f0bce6-9f1a-428c-bdc2-d044251790ba
Brooks, Christopher James
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Turnock, S.R.
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Hudson, D.A.
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Forrester, A.I.J.
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Taunton, D.J.
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Bennett, S., Winden, B., Brooks, Christopher James, Turnock, S.R., Hudson, D.A., Forrester, A.I.J. and Taunton, D.J.
(2012)
A wireless sensor network for measuring ship responses in abnormal waves.
29th Symposium on Naval Hydrodynamics, Gothenburg, Sweden.
25 - 30 Aug 2012.
17 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The responses of a ship to abnormal waves are of considerable importance due to the severe nature of such wave-ship encounters. To fully investigate the influence of abnormal waves on ship design, experimental investigations need to include both the directional aspect of abnormal waves and the forward speed of the vessel.
This paper presents the development of a novel wireless sensor network as an alternative to conventional towing tank methods for recording rigid body motions, accelerations and distortions in regular and irregular waves, including the influence of abnormal waves. Key advantages of such sensors are that they are lightweight, capable of providing a large range of information from an individual test, and are a simple method that allows the measurement of responses of a model in directional seas (either a wave basin or open water) without the limitation of a shore-based acquisition system.
Use of the wireless sensor network is validated in towing tank experiments via regular wave seakeeping tests, and tests in random and abnormal waves. Results show good agreement with conventional acquisition methods, although some improvement in the method of obtaining heave is desirable. In addition, a discussion is included of the influence of abnormal waves on ship responses.
Overall the wireless sensor network shows significant potential for obtaining responses a ship in a range of sea states. There is good agreement with responses measured using conventional techniques and levels of uncertainty are low, in general less than 5%. The integration of additional hardware such as synchronised video provides a useful tool for visualising wave encounters.
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e-pub ahead of print date: August 2012
Venue - Dates:
29th Symposium on Naval Hydrodynamics, Gothenburg, Sweden, 2012-08-25 - 2012-08-30
Organisations:
Faculty of Engineering and the Environment
Identifiers
Local EPrints ID: 345868
URI: http://eprints.soton.ac.uk/id/eprint/345868
PURE UUID: a2891b6f-3083-474a-977b-238452d430ac
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Date deposited: 05 Dec 2012 13:58
Last modified: 11 Dec 2021 03:25
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Contributors
Author:
S. Bennett
Author:
B. Winden
Author:
Christopher James Brooks
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