Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions
This study presents a fatigue analysis procedure for inclined structures operated in level ice fields. Three methods for calculating the local ice load causing fatigue damage, namely the direct method, simplified method, and semi-analytical method, were introduced and compared. The direct method use...
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ftdoajarticles:oai:doaj.org/article:2042328fbfdd453ab7eda1924c76e43a 2023-07-02T03:31:35+02:00 Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions Yoon-Chul Shin Jeong-Hwan Kim Yooil Kim 2023-05-01T00:00:00Z https://doi.org/10.3390/app13116688 https://doaj.org/article/2042328fbfdd453ab7eda1924c76e43a EN eng MDPI AG https://www.mdpi.com/2076-3417/13/11/6688 https://doaj.org/toc/2076-3417 doi:10.3390/app13116688 2076-3417 https://doaj.org/article/2042328fbfdd453ab7eda1924c76e43a Applied Sciences, Vol 13, Iss 6688, p 6688 (2023) ice induced fatigue sloped structure level ice ice breaking semi-analytical method simplified method Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 article 2023 ftdoajarticles https://doi.org/10.3390/app13116688 2023-06-11T00:33:56Z This study presents a fatigue analysis procedure for inclined structures operated in level ice fields. Three methods for calculating the local ice load causing fatigue damage, namely the direct method, simplified method, and semi-analytical method, were introduced and compared. The direct method uses finite element analysis to simulate the continuous breaking of ice, while the simplified method and the semi-analytical method estimate the probability distribution of local ice loads based on theoretical equations and empirical data. The fatigue damage ratio at the target location was calculated by applying the ice load calculated by each method to a deformable finite element model of the structure. The results obtained from each method indicate that they provide a reasonable estimation of the local ice load causing fatigue damage in level ice fields. The direct method offers high accuracy but requires significant computational time, while the simplified method and semi-analytical method offer a faster analysis time and are more suitable for long-term time domain analysis. The semi-analytical method requires empirical data to supplement theoretical formulas due to the complex natural phenomena involving various environmental conditions that must be modeled. The findings of this study provide valuable insights into the prediction of fatigue damage in ice-going ships due to long-term ice impacts. The methods proposed in this study can aid in the design of Arctic ships exposed to various conditions and provide a more cost-effective and time-efficient approach to evaluating fatigue damage compared to field measurement. Future research in this field could investigate the application of these methods to other types of structures and further refine the methodology to improve accuracy and reduce computational costs. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Applied Sciences 13 11 6688 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ice induced fatigue sloped structure level ice ice breaking semi-analytical method simplified method Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
ice induced fatigue sloped structure level ice ice breaking semi-analytical method simplified method Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Yoon-Chul Shin Jeong-Hwan Kim Yooil Kim Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions |
topic_facet |
ice induced fatigue sloped structure level ice ice breaking semi-analytical method simplified method Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
description |
This study presents a fatigue analysis procedure for inclined structures operated in level ice fields. Three methods for calculating the local ice load causing fatigue damage, namely the direct method, simplified method, and semi-analytical method, were introduced and compared. The direct method uses finite element analysis to simulate the continuous breaking of ice, while the simplified method and the semi-analytical method estimate the probability distribution of local ice loads based on theoretical equations and empirical data. The fatigue damage ratio at the target location was calculated by applying the ice load calculated by each method to a deformable finite element model of the structure. The results obtained from each method indicate that they provide a reasonable estimation of the local ice load causing fatigue damage in level ice fields. The direct method offers high accuracy but requires significant computational time, while the simplified method and semi-analytical method offer a faster analysis time and are more suitable for long-term time domain analysis. The semi-analytical method requires empirical data to supplement theoretical formulas due to the complex natural phenomena involving various environmental conditions that must be modeled. The findings of this study provide valuable insights into the prediction of fatigue damage in ice-going ships due to long-term ice impacts. The methods proposed in this study can aid in the design of Arctic ships exposed to various conditions and provide a more cost-effective and time-efficient approach to evaluating fatigue damage compared to field measurement. Future research in this field could investigate the application of these methods to other types of structures and further refine the methodology to improve accuracy and reduce computational costs. |
format |
Article in Journal/Newspaper |
author |
Yoon-Chul Shin Jeong-Hwan Kim Yooil Kim |
author_facet |
Yoon-Chul Shin Jeong-Hwan Kim Yooil Kim |
author_sort |
Yoon-Chul Shin |
title |
Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions |
title_short |
Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions |
title_full |
Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions |
title_fullStr |
Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions |
title_full_unstemmed |
Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions |
title_sort |
estimation of the ice-induced fatigue damage to a semi-submersible platform under level ice conditions |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/app13116688 https://doaj.org/article/2042328fbfdd453ab7eda1924c76e43a |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Applied Sciences, Vol 13, Iss 6688, p 6688 (2023) |
op_relation |
https://www.mdpi.com/2076-3417/13/11/6688 https://doaj.org/toc/2076-3417 doi:10.3390/app13116688 2076-3417 https://doaj.org/article/2042328fbfdd453ab7eda1924c76e43a |
op_doi |
https://doi.org/10.3390/app13116688 |
container_title |
Applied Sciences |
container_volume |
13 |
container_issue |
11 |
container_start_page |
6688 |
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1770270950683574272 |