A random ice force model for narrow conical structures
This paper describes a time-varying random ice force model for narrow conical structures. The model concerns a situation where a uniform ice sheet acts on a narrow cone and fails by bending in a mode where the broken ice pieces are cleared away. The ice force is simplified as a series of impulses wi...
Published in: | Cold Regions Science and Technology |
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Language: | English |
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2006
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ftvttcrispub:oai:cris.vtt.fi:publications/b9efcf9c-abe8-40d2-9e5b-2750eaa8f9f6 2024-06-23T07:53:48+00:00 A random ice force model for narrow conical structures Yan, Qu Qianjin, Yue Xiangjun, Bi Kärnä, Tuomo 2006 https://cris.vtt.fi/en/publications/b9efcf9c-abe8-40d2-9e5b-2750eaa8f9f6 https://doi.org/10.1016/j.coldregions.2006.05.008 eng eng https://cris.vtt.fi/en/publications/b9efcf9c-abe8-40d2-9e5b-2750eaa8f9f6 info:eu-repo/semantics/closedAccess Yan , Q , Qianjin , Y , Xiangjun , B & Kärnä , T 2006 , ' A random ice force model for narrow conical structures ' , Cold Regions Science and Technology , vol. 45 , no. 3 , pp. 148-157 . https://doi.org/10.1016/j.coldregions.2006.05.008 Oil platform Ice induced vibration Ice force model Conical structures Compliant structures article 2006 ftvttcrispub https://doi.org/10.1016/j.coldregions.2006.05.008 2024-06-12T23:36:12Z This paper describes a time-varying random ice force model for narrow conical structures. The model concerns a situation where a uniform ice sheet acts on a narrow cone and fails by bending in a mode where the broken ice pieces are cleared away. The ice force is simplified as a series of impulses with random magnitudes and periods, which are based on a statistical analysis of the load panel data obtained in full scale tests. It was found that normal distributions can be used as approximations to the statistical characteristics of the force amplitudes and periods. This paper addresses the determination of the distribution parameters. The random ice load function that is derived in this paper can be used in the dynamic analysis of compliant offshore structures with narrow ice breaking cones that are subjected to ice actions. Further limitations are discussed in the paper. Article in Journal/Newspaper Ice Sheet VTT's Research Information Portal Cold Regions Science and Technology 45 3 148 157 |
institution |
Open Polar |
collection |
VTT's Research Information Portal |
op_collection_id |
ftvttcrispub |
language |
English |
topic |
Oil platform Ice induced vibration Ice force model Conical structures Compliant structures |
spellingShingle |
Oil platform Ice induced vibration Ice force model Conical structures Compliant structures Yan, Qu Qianjin, Yue Xiangjun, Bi Kärnä, Tuomo A random ice force model for narrow conical structures |
topic_facet |
Oil platform Ice induced vibration Ice force model Conical structures Compliant structures |
description |
This paper describes a time-varying random ice force model for narrow conical structures. The model concerns a situation where a uniform ice sheet acts on a narrow cone and fails by bending in a mode where the broken ice pieces are cleared away. The ice force is simplified as a series of impulses with random magnitudes and periods, which are based on a statistical analysis of the load panel data obtained in full scale tests. It was found that normal distributions can be used as approximations to the statistical characteristics of the force amplitudes and periods. This paper addresses the determination of the distribution parameters. The random ice load function that is derived in this paper can be used in the dynamic analysis of compliant offshore structures with narrow ice breaking cones that are subjected to ice actions. Further limitations are discussed in the paper. |
format |
Article in Journal/Newspaper |
author |
Yan, Qu Qianjin, Yue Xiangjun, Bi Kärnä, Tuomo |
author_facet |
Yan, Qu Qianjin, Yue Xiangjun, Bi Kärnä, Tuomo |
author_sort |
Yan, Qu |
title |
A random ice force model for narrow conical structures |
title_short |
A random ice force model for narrow conical structures |
title_full |
A random ice force model for narrow conical structures |
title_fullStr |
A random ice force model for narrow conical structures |
title_full_unstemmed |
A random ice force model for narrow conical structures |
title_sort |
random ice force model for narrow conical structures |
publishDate |
2006 |
url |
https://cris.vtt.fi/en/publications/b9efcf9c-abe8-40d2-9e5b-2750eaa8f9f6 https://doi.org/10.1016/j.coldregions.2006.05.008 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Yan , Q , Qianjin , Y , Xiangjun , B & Kärnä , T 2006 , ' A random ice force model for narrow conical structures ' , Cold Regions Science and Technology , vol. 45 , no. 3 , pp. 148-157 . https://doi.org/10.1016/j.coldregions.2006.05.008 |
op_relation |
https://cris.vtt.fi/en/publications/b9efcf9c-abe8-40d2-9e5b-2750eaa8f9f6 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.coldregions.2006.05.008 |
container_title |
Cold Regions Science and Technology |
container_volume |
45 |
container_issue |
3 |
container_start_page |
148 |
op_container_end_page |
157 |
_version_ |
1802645625856065536 |