The University of Southampton
University of Southampton Institutional Repository

Investigation of springing in ship structures using experimental methods and 3-D hydroelastic theory

Investigation of springing in ship structures using experimental methods and 3-D hydroelastic theory
Investigation of springing in ship structures using experimental methods and 3-D hydroelastic theory
Large and long ships experience springing behavior. Depending on the trade routes and design of such ocean-going ships, wave-induced vibrations may be due to springing and whipping effects. In this paper, we address the wave-induced vibrations in an ultra-large ore carrier under fully loaded and ballast conditions. The experimental measurements from tests performed using a flexible model of the ship were compared with the numerical predictions from 3-D hydro-elastic theory (THAFTS) (Wu, Hydroelasticity of floating bodies. PH.D thesis, Brunel University, 1984). The measurements showed multiple frequencies between the encountered wave frequency and the 2-node bending frequency that occurred only in ballast conditions, whereas the springing vibrations were more apparent with forward speed under ballast conditions in both regular and irregular waves. The numerical method predicted the vertical bending moment quite well in the fully loaded condition but underestimated it in the ballast condition. This result was primarily due to an inability to capture the prediction of the multiple frequencies between the encountered wave frequency and the 2-node bending frequency. Using THAFTS, a new ship form with a deep draft was introduced, and this vessel was shown to reduce springing vibrations.
springing, experiments, hydroelasticity, new ship form
0948-4280
1-11
Wang, Xueliang
2908d0b8-78f1-4677-b19d-715ade7c8b4d
Gu, Xuekang
421bcd3c-1f7c-43f8-9e52-2b4e69be9320
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Hu, Jiajun
651a5f3e-f7c9-41b4-bfc3-fa40135bb56a
Wang, Xueliang
2908d0b8-78f1-4677-b19d-715ade7c8b4d
Gu, Xuekang
421bcd3c-1f7c-43f8-9e52-2b4e69be9320
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Hu, Jiajun
651a5f3e-f7c9-41b4-bfc3-fa40135bb56a

Wang, Xueliang, Gu, Xuekang, Temarel, Pandeli and Hu, Jiajun (2015) Investigation of springing in ship structures using experimental methods and 3-D hydroelastic theory. Journal of Marine Science and Technology, 1-11. (doi:10.1007/s00773-015-0350-1).

Record type: Article

Abstract

Large and long ships experience springing behavior. Depending on the trade routes and design of such ocean-going ships, wave-induced vibrations may be due to springing and whipping effects. In this paper, we address the wave-induced vibrations in an ultra-large ore carrier under fully loaded and ballast conditions. The experimental measurements from tests performed using a flexible model of the ship were compared with the numerical predictions from 3-D hydro-elastic theory (THAFTS) (Wu, Hydroelasticity of floating bodies. PH.D thesis, Brunel University, 1984). The measurements showed multiple frequencies between the encountered wave frequency and the 2-node bending frequency that occurred only in ballast conditions, whereas the springing vibrations were more apparent with forward speed under ballast conditions in both regular and irregular waves. The numerical method predicted the vertical bending moment quite well in the fully loaded condition but underestimated it in the ballast condition. This result was primarily due to an inability to capture the prediction of the multiple frequencies between the encountered wave frequency and the 2-node bending frequency. Using THAFTS, a new ship form with a deep draft was introduced, and this vessel was shown to reduce springing vibrations.

This record has no associated files available for download.

More information

Accepted/In Press date: 28 October 2015
e-pub ahead of print date: 1 December 2015
Keywords: springing, experiments, hydroelasticity, new ship form
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 384730
URI: http://eprints.soton.ac.uk/id/eprint/384730
ISSN: 0948-4280
PURE UUID: 8f167beb-70e9-4807-9d2a-e503bee9c56b
ORCID for Pandeli Temarel: ORCID iD orcid.org/0000-0003-2921-1242

Catalogue record

Date deposited: 13 Jan 2016 09:01
Last modified: 10 Jan 2022 02:36

Export record

Altmetrics

Contributors

Author: Xueliang Wang
Author: Xuekang Gu
Author: Pandeli Temarel ORCID iD
Author: Jiajun Hu

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×