Wave induced motion of small ice masses
Thesis (M.Eng.)--Memorial University of Newfoundland, 1987. Engineering and Applied Science Bibliography: leaves 126-128. Experiments have been performed to assess the ability of linear diffraction theory to predict the motion of ice masses under wave excitation. Variables in the regular wave portio...
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ftmemorialunivdc:oai:collections.mun.ca:theses2/271046 2023-05-15T17:23:31+02:00 Wave induced motion of small ice masses Attwood, Daryl Memorial University of Newfoundland. Faculty of Engineering and Applied Science 1986 viii, 255 leaves : ill. Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses2/id/271046 Eng eng Electronic Theses and Dissertations (25.59 MB) -- http://collections.mun.ca/PDFs/theses/Attwood_Daryl.pdf 75414564 http://collections.mun.ca/cdm/ref/collection/theses2/id/271046 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Ice--Dynamics Sea ice--Dynamics Waves Text Electronic thesis or dissertation 1986 ftmemorialunivdc 2015-08-06T19:17:32Z Thesis (M.Eng.)--Memorial University of Newfoundland, 1987. Engineering and Applied Science Bibliography: leaves 126-128. Experiments have been performed to assess the ability of linear diffraction theory to predict the motion of ice masses under wave excitation. Variables in the regular wave portion of the experiment included iceberg size and shape and wave steepness. Regular wave tests demonstrated accurate motion prediction, with best results achieved for smooth sided bodies undergoing small amplitude motion. Accuracy was lower for low frequency surge and heave resonance results, and generally for bodies with steeply sloping sides. -- Irregular tests were performed to demonstrate the ability to predict motion in an irregular seaway. It was seen that by combining response amplitude operators (RAO's) with wave spectra, response spectra for individual bodies could be predicted. The predicted spectra generated using experimentally determined RAO's very accurately mirrored the ones generated by transforming irregular-wave body response data to the frequency domain. Predicted spectra generated using theoretically determined RAO's were studied as well. It was found that the accuracy of such spectra was directly tied to the accuracy of the associated RAO's. Thesis Newfoundland studies Sea ice University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
op_collection_id |
ftmemorialunivdc |
language |
English |
topic |
Ice--Dynamics Sea ice--Dynamics Waves |
spellingShingle |
Ice--Dynamics Sea ice--Dynamics Waves Attwood, Daryl Wave induced motion of small ice masses |
topic_facet |
Ice--Dynamics Sea ice--Dynamics Waves |
description |
Thesis (M.Eng.)--Memorial University of Newfoundland, 1987. Engineering and Applied Science Bibliography: leaves 126-128. Experiments have been performed to assess the ability of linear diffraction theory to predict the motion of ice masses under wave excitation. Variables in the regular wave portion of the experiment included iceberg size and shape and wave steepness. Regular wave tests demonstrated accurate motion prediction, with best results achieved for smooth sided bodies undergoing small amplitude motion. Accuracy was lower for low frequency surge and heave resonance results, and generally for bodies with steeply sloping sides. -- Irregular tests were performed to demonstrate the ability to predict motion in an irregular seaway. It was seen that by combining response amplitude operators (RAO's) with wave spectra, response spectra for individual bodies could be predicted. The predicted spectra generated using experimentally determined RAO's very accurately mirrored the ones generated by transforming irregular-wave body response data to the frequency domain. Predicted spectra generated using theoretically determined RAO's were studied as well. It was found that the accuracy of such spectra was directly tied to the accuracy of the associated RAO's. |
author2 |
Memorial University of Newfoundland. Faculty of Engineering and Applied Science |
format |
Thesis |
author |
Attwood, Daryl |
author_facet |
Attwood, Daryl |
author_sort |
Attwood, Daryl |
title |
Wave induced motion of small ice masses |
title_short |
Wave induced motion of small ice masses |
title_full |
Wave induced motion of small ice masses |
title_fullStr |
Wave induced motion of small ice masses |
title_full_unstemmed |
Wave induced motion of small ice masses |
title_sort |
wave induced motion of small ice masses |
publishDate |
1986 |
url |
http://collections.mun.ca/cdm/ref/collection/theses2/id/271046 |
genre |
Newfoundland studies Sea ice University of Newfoundland |
genre_facet |
Newfoundland studies Sea ice University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (25.59 MB) -- http://collections.mun.ca/PDFs/theses/Attwood_Daryl.pdf 75414564 http://collections.mun.ca/cdm/ref/collection/theses2/id/271046 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
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