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The dynamic of ship propulsion unit-large hull-water interactions

The dynamic of ship propulsion unit-large hull-water interactions
The dynamic of ship propulsion unit-large hull-water interactions
This paper developed a generalised theory to model the dynamics of an integrated ship propulsion unit-large hull–water interaction system. The engine shaft unit, the hull structure are considered as two substructures and the water as a subdomain, of which the motions of each subsystem are governed by the fundamental laws in continuum mechanics, and on their interfaces, kinematical and dynamical conditions are satisfied. The integrated variational formulation is given, based on which the numerical equation is derived by using the mode summation approach. The shaft frequency and deformation factors are defined to study on its interactions with large hull and water in order to provide a mean for safety propulsion unit design in large ships. An example is given to illustrate the applications of the general theory presented in the paper. Some guidelines which are useful in preliminary design stage for dynamical designs of large ship hull – propulsion system are suggested.
0029-8018
349-362
Xing, Jing T.
d4fe7ae0-2668-422a-8d89-9e66527835ce
Tian, Zhe
667c7c4f-f6d2-4af8-a7de-96a885d90501
Yan, Xinping
66cfd5ac-183c-4019-9983-fb7a06883f8c
Xing, Jing T.
d4fe7ae0-2668-422a-8d89-9e66527835ce
Tian, Zhe
667c7c4f-f6d2-4af8-a7de-96a885d90501
Yan, Xinping
66cfd5ac-183c-4019-9983-fb7a06883f8c

Xing, Jing T., Tian, Zhe and Yan, Xinping (2016) The dynamic of ship propulsion unit-large hull-water interactions. Ocean Engineering, 124, 349-362. (doi:10.1016/j.oceaneng.2016.07.043).

Record type: Article

Abstract

This paper developed a generalised theory to model the dynamics of an integrated ship propulsion unit-large hull–water interaction system. The engine shaft unit, the hull structure are considered as two substructures and the water as a subdomain, of which the motions of each subsystem are governed by the fundamental laws in continuum mechanics, and on their interfaces, kinematical and dynamical conditions are satisfied. The integrated variational formulation is given, based on which the numerical equation is derived by using the mode summation approach. The shaft frequency and deformation factors are defined to study on its interactions with large hull and water in order to provide a mean for safety propulsion unit design in large ships. An example is given to illustrate the applications of the general theory presented in the paper. Some guidelines which are useful in preliminary design stage for dynamical designs of large ship hull – propulsion system are suggested.

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Submitted date: 14 December 2015
Accepted/In Press date: 17 July 2016
e-pub ahead of print date: 9 August 2016
Published date: 15 September 2016
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 399411
URI: http://eprints.soton.ac.uk/id/eprint/399411
ISSN: 0029-8018
PURE UUID: b2909ddd-3f97-4948-a9e5-f04d0aad4cdb

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Date deposited: 16 Aug 2016 12:41
Last modified: 08 Jan 2022 07:10

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Contributors

Author: Jing T. Xing
Author: Zhe Tian
Author: Xinping Yan

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