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Measurement of ship hydroelastic response using multiple wireless sensor nodes

Measurement of ship hydroelastic response using multiple wireless sensor nodes
Measurement of ship hydroelastic response using multiple wireless sensor nodes
A measurement system is required for the assessment of the structural and kinematic response of a free-running model, either at model or full scale. Tethered and optical measurements systems used in towing tanks and wave basins are unsuited to this application. A system of wireless sensor nodes with synchronised video capability has been developed which allows rigid body motions and three-axis accelerations to be obtained by a single nine degree of freedom sensor node whilst the structural deformation of the hull girder can be obtained from a minimum of three nodes in parallel. The system performance was assessed in a controlled towing tank environment in comparison to a tethered system, using three nodes mounted on a flexible, four segment model hull. Measurements from the wireless system were comparable to the tethered results with the same degree of accuracy. Further tests showed a single node to produce comparable measurements to an optical system. The additional synchronised video capability allows a visual image of an extreme wave encounter to be correlated to the magnitude of the responses experienced. Practical advantages of the wireless system demonstrate its viability for acquiring high quality model data; further development should allow its application to full scale. (C) 2013 Elsevier Ltd. All rights reserved.
0029-8018
67-80
Bennett, S.
6c2fda55-1416-4cfa-ab39-9f6eea640b95
Brooks, Christopher James
5c504fef-0360-4b2a-b6c4-d88bbd6e5bac
Winden, B.
78f0bce6-9f1a-428c-bdc2-d044251790ba
Taunton, D.J.
10bfbe83-c4c2-49c6-94c0-2de8098c648c
Forrester, A.I.J.
176bf191-3fc2-46b4-80e0-9d9a0cd7a572
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Bennett, S.
6c2fda55-1416-4cfa-ab39-9f6eea640b95
Brooks, Christopher James
5c504fef-0360-4b2a-b6c4-d88bbd6e5bac
Winden, B.
78f0bce6-9f1a-428c-bdc2-d044251790ba
Taunton, D.J.
10bfbe83-c4c2-49c6-94c0-2de8098c648c
Forrester, A.I.J.
176bf191-3fc2-46b4-80e0-9d9a0cd7a572
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7

Bennett, S., Brooks, Christopher James, Winden, B., Taunton, D.J., Forrester, A.I.J., Turnock, S.R. and Hudson, D.A. (2014) Measurement of ship hydroelastic response using multiple wireless sensor nodes. Ocean Engineering, 79, 67-80. (doi:10.1016/j.oceaneng.2013.12.011).

Record type: Article

Abstract

A measurement system is required for the assessment of the structural and kinematic response of a free-running model, either at model or full scale. Tethered and optical measurements systems used in towing tanks and wave basins are unsuited to this application. A system of wireless sensor nodes with synchronised video capability has been developed which allows rigid body motions and three-axis accelerations to be obtained by a single nine degree of freedom sensor node whilst the structural deformation of the hull girder can be obtained from a minimum of three nodes in parallel. The system performance was assessed in a controlled towing tank environment in comparison to a tethered system, using three nodes mounted on a flexible, four segment model hull. Measurements from the wireless system were comparable to the tethered results with the same degree of accuracy. Further tests showed a single node to produce comparable measurements to an optical system. The additional synchronised video capability allows a visual image of an extreme wave encounter to be correlated to the magnitude of the responses experienced. Practical advantages of the wireless system demonstrate its viability for acquiring high quality model data; further development should allow its application to full scale. (C) 2013 Elsevier Ltd. All rights reserved.

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e-pub ahead of print date: 7 February 2014
Published date: 15 March 2014
Organisations: Faculty of Engineering and the Environment

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Local EPrints ID: 364895
URI: http://eprints.soton.ac.uk/id/eprint/364895
ISSN: 0029-8018
PURE UUID: a84fa81f-1b97-48ee-9ac4-1249d75b4260
ORCID for D.J. Taunton: ORCID iD orcid.org/0000-0002-6865-089X
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400
ORCID for D.A. Hudson: ORCID iD orcid.org/0000-0002-2012-6255

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Date deposited: 15 May 2014 13:42
Last modified: 18 Feb 2021 16:51

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Contributors

Author: S. Bennett
Author: Christopher James Brooks
Author: B. Winden
Author: D.J. Taunton ORCID iD
Author: S.R. Turnock ORCID iD
Author: D.A. Hudson ORCID iD

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