Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model
Abstract Ice-structure interaction threatens the safety of the offshore structure; however, dynamic seismic action even renders this process more sophisticated. This research constructed a simplified calculation model for the wind turbine tower, ice, and water under seismic loading, which could avoi...
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2021
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Online Access: | http://dx.doi.org/10.1038/s41598-021-86142-0 http://www.nature.com/articles/s41598-021-86142-0.pdf http://www.nature.com/articles/s41598-021-86142-0 |
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crspringernat:10.1038/s41598-021-86142-0 2023-05-15T18:16:30+02:00 Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model Huang, Shuai Qi, Qingjie Zhai, Shufeng Liu, Wengang Liu, Jianzhong National Natural Science Foundation of China CAST’s Young Elite Scientists Sponsorship Programm National Key R & D Programme of China The Institute of Crustal Dynamics, China Earthquake Administration 2021 http://dx.doi.org/10.1038/s41598-021-86142-0 http://www.nature.com/articles/s41598-021-86142-0.pdf http://www.nature.com/articles/s41598-021-86142-0 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-86142-0 2022-01-04T08:18:23Z Abstract Ice-structure interaction threatens the safety of the offshore structure; however, dynamic seismic action even renders this process more sophisticated. This research constructed a simplified calculation model for the wind turbine tower, ice, and water under seismic loading, which could avoid solving the complex non-linear equations. Then, the seismic behaviour of the structure, i.e. wind turbine tower, in the presence and absence of influences of the sea ice was investigated, and we found the remarkable effect of sea ice upon the wind turbine tower when its mass is within a range; the wind turbine tower is found to have reduced capacity in energy dissipation, and thickness of tower walls or stiffening ribs is supposed to be enlarged for making the structure more ductile. Affected by the sea ice, the shear force and bending moment of the tower showed significant increases, and more attention needs to be paid to the tower bottom and action position of the sea ice. According to the dynamic similarity principle, finally paraffin was used to simulate sea ice, and shaking-table tests were performed for simulating dynamic ice-structure-water interactions. Results of shaking-table tests verified the rationality of our proposed simplified model. Article in Journal/Newspaper Sea ice Springer Nature (via Crossref) Scientific Reports 11 1 |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Huang, Shuai Qi, Qingjie Zhai, Shufeng Liu, Wengang Liu, Jianzhong Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model |
topic_facet |
Multidisciplinary |
description |
Abstract Ice-structure interaction threatens the safety of the offshore structure; however, dynamic seismic action even renders this process more sophisticated. This research constructed a simplified calculation model for the wind turbine tower, ice, and water under seismic loading, which could avoid solving the complex non-linear equations. Then, the seismic behaviour of the structure, i.e. wind turbine tower, in the presence and absence of influences of the sea ice was investigated, and we found the remarkable effect of sea ice upon the wind turbine tower when its mass is within a range; the wind turbine tower is found to have reduced capacity in energy dissipation, and thickness of tower walls or stiffening ribs is supposed to be enlarged for making the structure more ductile. Affected by the sea ice, the shear force and bending moment of the tower showed significant increases, and more attention needs to be paid to the tower bottom and action position of the sea ice. According to the dynamic similarity principle, finally paraffin was used to simulate sea ice, and shaking-table tests were performed for simulating dynamic ice-structure-water interactions. Results of shaking-table tests verified the rationality of our proposed simplified model. |
author2 |
National Natural Science Foundation of China CAST’s Young Elite Scientists Sponsorship Programm National Key R & D Programme of China The Institute of Crustal Dynamics, China Earthquake Administration |
format |
Article in Journal/Newspaper |
author |
Huang, Shuai Qi, Qingjie Zhai, Shufeng Liu, Wengang Liu, Jianzhong |
author_facet |
Huang, Shuai Qi, Qingjie Zhai, Shufeng Liu, Wengang Liu, Jianzhong |
author_sort |
Huang, Shuai |
title |
Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model |
title_short |
Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model |
title_full |
Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model |
title_fullStr |
Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model |
title_full_unstemmed |
Seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model |
title_sort |
seismic behaviour analysis of a wind turbine tower affected by sea ice based on a simplified model |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-86142-0 http://www.nature.com/articles/s41598-021-86142-0.pdf http://www.nature.com/articles/s41598-021-86142-0 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-86142-0 |
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Scientific Reports |
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11 |
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