Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters
An approach combining frequency and time domain analysis is introduced in this study for ship motions assessment. The open-source NEMOH code is utilized to compute the excitation forces and the hydrodynamic coefficients, while heave and pitch motions time histories are determined by solving the Cumm...
Published in: | Journal of Marine Science and Engineering |
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Language: | English |
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2023
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Online Access: | https://hdl.handle.net/11367/116716 https://doi.org/10.3390/jmse11030558 https://www.mdpi.com/2077-1312/11/3/558 |
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ftuninapoliparth:oai:ricerca.uniparthenope.it:11367/116716 2024-04-14T08:04:37+00:00 Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters Pennino S. Scamardella A. Pennino, S. Scamardella, A. 2023 https://hdl.handle.net/11367/116716 https://doi.org/10.3390/jmse11030558 https://www.mdpi.com/2077-1312/11/3/558 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000958397900001 volume:11 issue:3 firstpage:558 numberofpages:15 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING https://hdl.handle.net/11367/116716 doi:10.3390/jmse11030558 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85151472339 https://www.mdpi.com/2077-1312/11/3/558 Cummins equation onboard motions measurement time-domain simulation vertical motions assessment weather forecast data info:eu-repo/semantics/article 2023 ftuninapoliparth https://doi.org/10.3390/jmse11030558 2024-03-21T17:52:38Z An approach combining frequency and time domain analysis is introduced in this study for ship motions assessment. The open-source NEMOH code is utilized to compute the excitation forces and the hydrodynamic coefficients, while heave and pitch motions time histories are determined by solving the Cummins equations in the time domain. The study compares the numerical outcomes for the heave, pitch, and vertical acceleration at the center of gravity with data obtained from a smartphone onboard during an oceanographic expedition in the Antarctic Ocean in early 2020 on the “Laura Bassi” research vessel. In order to validate the proposed method, weather forecast data from the global-WAM (GWAM) model are utilized. The comparison reveals a good agreement between numerical results and onboard measurements, with differences in motion values remaining below 10% and accelerations below 15%. Therefore, the developed code, taking into account its future improvements, represents an initial step towards creating a promising tool for an accurate estimation of ship motions and accelerations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Università degli Studi di Napoli "Parthenope": CINECA IRIS Antarctic Antarctic Ocean The Antarctic Journal of Marine Science and Engineering 11 3 558 |
institution |
Open Polar |
collection |
Università degli Studi di Napoli "Parthenope": CINECA IRIS |
op_collection_id |
ftuninapoliparth |
language |
English |
topic |
Cummins equation onboard motions measurement time-domain simulation vertical motions assessment weather forecast data |
spellingShingle |
Cummins equation onboard motions measurement time-domain simulation vertical motions assessment weather forecast data Pennino S. Scamardella A. Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters |
topic_facet |
Cummins equation onboard motions measurement time-domain simulation vertical motions assessment weather forecast data |
description |
An approach combining frequency and time domain analysis is introduced in this study for ship motions assessment. The open-source NEMOH code is utilized to compute the excitation forces and the hydrodynamic coefficients, while heave and pitch motions time histories are determined by solving the Cummins equations in the time domain. The study compares the numerical outcomes for the heave, pitch, and vertical acceleration at the center of gravity with data obtained from a smartphone onboard during an oceanographic expedition in the Antarctic Ocean in early 2020 on the “Laura Bassi” research vessel. In order to validate the proposed method, weather forecast data from the global-WAM (GWAM) model are utilized. The comparison reveals a good agreement between numerical results and onboard measurements, with differences in motion values remaining below 10% and accelerations below 15%. Therefore, the developed code, taking into account its future improvements, represents an initial step towards creating a promising tool for an accurate estimation of ship motions and accelerations. |
author2 |
Pennino, S. Scamardella, A. |
format |
Article in Journal/Newspaper |
author |
Pennino S. Scamardella A. |
author_facet |
Pennino S. Scamardella A. |
author_sort |
Pennino S. |
title |
Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters |
title_short |
Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters |
title_full |
Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters |
title_fullStr |
Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters |
title_full_unstemmed |
Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters |
title_sort |
motions assessment using a time domain approach for a research ship in antarctic waters |
publishDate |
2023 |
url |
https://hdl.handle.net/11367/116716 https://doi.org/10.3390/jmse11030558 https://www.mdpi.com/2077-1312/11/3/558 |
geographic |
Antarctic Antarctic Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000958397900001 volume:11 issue:3 firstpage:558 numberofpages:15 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING https://hdl.handle.net/11367/116716 doi:10.3390/jmse11030558 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85151472339 https://www.mdpi.com/2077-1312/11/3/558 |
op_doi |
https://doi.org/10.3390/jmse11030558 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
11 |
container_issue |
3 |
container_start_page |
558 |
_version_ |
1796301266440159232 |