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Experimental hydroelastic responses of an elastic container ship-inspired barge model produced using additive manufacturing

Experimental hydroelastic responses of an elastic container ship-inspired barge model produced using additive manufacturing
Experimental hydroelastic responses of an elastic container ship-inspired barge model produced using additive manufacturing
Despite significant advancements in the field of computational hydroelasticity, manufacturing methods for corresponding physical models have not changed beyond the flexible backbone concept in the past 20 years. Few researchers have attempted to produce continuous models with an accurate internal structure, the so-called elastic models, in order to obtain more detailed measurements of the structural responses. These investigations faced the limitations of the then available manufacturing methods, which did not allow for any internal details of the structure, apart from bulkheads, to be included in the design without significant increase in difficulty and cost. The resulting structures, although continuous, comprised of an external shell and the effects of cross-sectional shape could not be investigated.

In this investigation, manufacturing difficulties of the past are overcome by use of additive manufacturing to create a barge model with a container ship-inspired cross section. The design and manufacturing processes are presented, followed by vibration tests and towing tank tests in regular head waves. The measured vertical bending moment responses in various stations were found to correlate well with 2D hydroelasticity and the strain distribution along the cross section of the vessel indicated beam-like behaviour. A detailed discussion of the challenges and sources of uncertainty is included, along with suggestions for future work.
elastic model, additive manufacturing, container ship, barge, vertical bending
75-84
Seoul National University
Grammatikopoulos, Apostolos
7975d020-159a-498e-adba-8f301b701a90
Banks, Joseph
3e915107-6d17-4097-8e77-99c40c8c053d
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Grammatikopoulos, Apostolos
7975d020-159a-498e-adba-8f301b701a90
Banks, Joseph
3e915107-6d17-4097-8e77-99c40c8c053d
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf

Grammatikopoulos, Apostolos, Banks, Joseph and Temarel, Pandeli (2018) Experimental hydroelastic responses of an elastic container ship-inspired barge model produced using additive manufacturing. In Proceedings of the 8th International Conference on Hydroelasticity in Marine Technology. Seoul National University. pp. 75-84 .

Record type: Conference or Workshop Item (Paper)

Abstract

Despite significant advancements in the field of computational hydroelasticity, manufacturing methods for corresponding physical models have not changed beyond the flexible backbone concept in the past 20 years. Few researchers have attempted to produce continuous models with an accurate internal structure, the so-called elastic models, in order to obtain more detailed measurements of the structural responses. These investigations faced the limitations of the then available manufacturing methods, which did not allow for any internal details of the structure, apart from bulkheads, to be included in the design without significant increase in difficulty and cost. The resulting structures, although continuous, comprised of an external shell and the effects of cross-sectional shape could not be investigated.

In this investigation, manufacturing difficulties of the past are overcome by use of additive manufacturing to create a barge model with a container ship-inspired cross section. The design and manufacturing processes are presented, followed by vibration tests and towing tank tests in regular head waves. The measured vertical bending moment responses in various stations were found to correlate well with 2D hydroelasticity and the strain distribution along the cross section of the vessel indicated beam-like behaviour. A detailed discussion of the challenges and sources of uncertainty is included, along with suggestions for future work.

Text
HYEL2018 Apostolos Grammatikopoulos - Accepted Manuscript
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More information

Published date: 10 September 2018
Venue - Dates: 8th International Conference on Hydroelasticity in Marine Technology, Korea, Democratic People's Republic of, 2018-09-10 - 2018-09-12
Keywords: elastic model, additive manufacturing, container ship, barge, vertical bending

Identifiers

Local EPrints ID: 423143
URI: http://eprints.soton.ac.uk/id/eprint/423143
PURE UUID: 16be8106-86db-4b08-a6df-758a43b7b04c
ORCID for Apostolos Grammatikopoulos: ORCID iD orcid.org/0000-0003-1800-7406
ORCID for Joseph Banks: ORCID iD orcid.org/0000-0002-3777-8962
ORCID for Pandeli Temarel: ORCID iD orcid.org/0000-0003-2921-1242

Catalogue record

Date deposited: 19 Sep 2018 11:04
Last modified: 07 Aug 2020 01:38

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