First-year ridge loads on moored offshore structures
This paper describes the background, test methodology, experiment program and analytical methods used for a project to predict the peak mooring system loads that occur when a floating offshore structure encounters a first year ice ridge. The project included the construction of simplified physical m...
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2011
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:17671618 2024-09-15T17:49:55+00:00 First-year ridge loads on moored offshore structures Molyneux, D. Derradji-Aouat, A. Cholley, J-M 2011 text https://nrc-publications.canada.ca/eng/view/accepted/?id=a7f166d4-23b3-4945-89d8-fb14acce4f1a https://nrc-publications.canada.ca/eng/view/object/?id=a7f166d4-23b3-4945-89d8-fb14acce4f1a https://nrc-publications.canada.ca/fra/voir/objet/?id=a7f166d4-23b3-4945-89d8-fb14acce4f1a eng eng Arctic Technology Conference, February 7-9, 2011, Houston, Texas, USA, Publication date: 2011 Arctic exploration consolidated unconsolidated ice mooring ridge spar floating platform ANSYS LSDyna ice tank properties address 2011 ftnrccanada 2024-08-12T03:24:56Z This paper describes the background, test methodology, experiment program and analytical methods used for a project to predict the peak mooring system loads that occur when a floating offshore structure encounters a first year ice ridge. The project included the construction of simplified physical models of a Spar at 1/30 scale and a Floating Production Unit (FPU) at 1/40 scale. The Spar was a representative structure with a downward breaking cone and a vertical neck designed for operation in ice. A partial spar, consisting of the cone only was also evaluated. The Floating Production Unit (FPU) was a simplified barge. This model was tested with a rigid connection to the towing carriage and also on a representative mooring system that allowed for some compliance. The model FPU was also fitted with two load measuring panels designed to measure local ice loads on the hull. The methods of producing the model ridges and measuring their physical properties are described. Each model was tested in a range of ridge geometries from temperate to Arctic regions. The experiments were carried out in the ice tank of the National Research Council of Canada’s Institute for Ocean Technology. This paper describes the first phase of experiments on the spar model completed in December 2009 and the first phase of experiments on the FPU completed in June 2010. The paper also presents the description of a parallel numerical approach to the problem, which looks at the methods needed to model the ridge-structure interaction using finite element methods. The results of the simulations and experiments are discussed in general terms. Peer reviewed: Yes NRC publication: Yes Other/Unknown Material Arctic National Research Council Canada: NRC Publications Archive |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
Arctic exploration consolidated unconsolidated ice mooring ridge spar floating platform ANSYS LSDyna ice tank properties |
spellingShingle |
Arctic exploration consolidated unconsolidated ice mooring ridge spar floating platform ANSYS LSDyna ice tank properties Molyneux, D. Derradji-Aouat, A. Cholley, J-M First-year ridge loads on moored offshore structures |
topic_facet |
Arctic exploration consolidated unconsolidated ice mooring ridge spar floating platform ANSYS LSDyna ice tank properties |
description |
This paper describes the background, test methodology, experiment program and analytical methods used for a project to predict the peak mooring system loads that occur when a floating offshore structure encounters a first year ice ridge. The project included the construction of simplified physical models of a Spar at 1/30 scale and a Floating Production Unit (FPU) at 1/40 scale. The Spar was a representative structure with a downward breaking cone and a vertical neck designed for operation in ice. A partial spar, consisting of the cone only was also evaluated. The Floating Production Unit (FPU) was a simplified barge. This model was tested with a rigid connection to the towing carriage and also on a representative mooring system that allowed for some compliance. The model FPU was also fitted with two load measuring panels designed to measure local ice loads on the hull. The methods of producing the model ridges and measuring their physical properties are described. Each model was tested in a range of ridge geometries from temperate to Arctic regions. The experiments were carried out in the ice tank of the National Research Council of Canada’s Institute for Ocean Technology. This paper describes the first phase of experiments on the spar model completed in December 2009 and the first phase of experiments on the FPU completed in June 2010. The paper also presents the description of a parallel numerical approach to the problem, which looks at the methods needed to model the ridge-structure interaction using finite element methods. The results of the simulations and experiments are discussed in general terms. Peer reviewed: Yes NRC publication: Yes |
format |
Other/Unknown Material |
author |
Molyneux, D. Derradji-Aouat, A. Cholley, J-M |
author_facet |
Molyneux, D. Derradji-Aouat, A. Cholley, J-M |
author_sort |
Molyneux, D. |
title |
First-year ridge loads on moored offshore structures |
title_short |
First-year ridge loads on moored offshore structures |
title_full |
First-year ridge loads on moored offshore structures |
title_fullStr |
First-year ridge loads on moored offshore structures |
title_full_unstemmed |
First-year ridge loads on moored offshore structures |
title_sort |
first-year ridge loads on moored offshore structures |
publishDate |
2011 |
url |
https://nrc-publications.canada.ca/eng/view/accepted/?id=a7f166d4-23b3-4945-89d8-fb14acce4f1a https://nrc-publications.canada.ca/eng/view/object/?id=a7f166d4-23b3-4945-89d8-fb14acce4f1a https://nrc-publications.canada.ca/fra/voir/objet/?id=a7f166d4-23b3-4945-89d8-fb14acce4f1a |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Arctic Technology Conference, February 7-9, 2011, Houston, Texas, USA, Publication date: 2011 |
_version_ |
1810291711307415552 |