Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic Approach
Evaluation of fatigue strength considering the springing effect of very large container ships is crucial in the design stage. In this study, we established a fatigue strength evaluation method considering a linear springing component in the frequency domain. Based on a three-dimensional global model...
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The Korean Society of Ocean Engineers
2020-04-01
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Online Access: | https://doi.org/10.26748/KSOE.2020.012 |
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doaj-b20e1db70e684265b871f524f70580102020-11-25T02:26:58ZengThe Korean Society of Ocean Engineers한국해양공학회지1225-07672287-67152020-04-0134212012710.26748/KSOE.2020.012Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic ApproachByoung-Hoon Jung0https://orcid.org/0000-0003-0939-2023In-Gyu Ahn1https://orcid.org/0000-0003-2954-9526Sun-Kee Seo2https://orcid.org/0000-0001-5723-9264Beom-Il Kim3https://orcid.org/0000-0002-8981-4777Hyundai Heavy IndustryHyundai Heavy IndustryKorean Register of ShippingKorean Register of ShippingEvaluation of fatigue strength considering the springing effect of very large container ships is crucial in the design stage. In this study, we established a fatigue strength evaluation method considering a linear springing component in the frequency domain. Based on a three-dimensional global model, a fluid – structure interaction analysis was performed and the modal superposition method was applied to determine the hot spot stress at the hatch corner of very large container ships. Fatigue damage was directly estimated using the stress transfer function with a linear springing response. Furthermore, we proposed a new methodology to apply the springing effect to fatigue damage using hull girder loads. Subsequently, we estimated the fatigue damage contribution due to linear springing components along the ship length. Finally, we discussed the practical application of the proposed methods. https://doi.org/10.26748/KSOE.2020.012fatigue damagevery large container shiplinear springingmodal superpositionfluid-structure interaction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Byoung-Hoon Jung In-Gyu Ahn Sun-Kee Seo Beom-Il Kim |
spellingShingle |
Byoung-Hoon Jung In-Gyu Ahn Sun-Kee Seo Beom-Il Kim Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic Approach 한국해양공학회지 fatigue damage very large container ship linear springing modal superposition fluid-structure interaction |
author_facet |
Byoung-Hoon Jung In-Gyu Ahn Sun-Kee Seo Beom-Il Kim |
author_sort |
Byoung-Hoon Jung |
title |
Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic Approach |
title_short |
Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic Approach |
title_full |
Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic Approach |
title_fullStr |
Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic Approach |
title_full_unstemmed |
Fatigue Assessment of Very Large Container Ships Considering Springing Effect Based on Stochastic Approach |
title_sort |
fatigue assessment of very large container ships considering springing effect based on stochastic approach |
publisher |
The Korean Society of Ocean Engineers |
series |
한국해양공학회지 |
issn |
1225-0767 2287-6715 |
publishDate |
2020-04-01 |
description |
Evaluation of fatigue strength considering the springing effect of very large container ships is crucial in the design stage. In this study, we established a fatigue strength evaluation method considering a linear springing component in the frequency domain. Based on a three-dimensional global model, a fluid – structure interaction analysis was performed and the modal superposition method was applied to determine the hot spot stress at the hatch corner of very large container ships. Fatigue damage was directly estimated using the stress transfer function with a linear springing response. Furthermore, we proposed a new methodology to apply the springing effect to fatigue damage using hull girder loads. Subsequently, we estimated the fatigue damage contribution due to linear springing components along the ship length. Finally, we discussed the practical application of the proposed methods. |
topic |
fatigue damage very large container ship linear springing modal superposition fluid-structure interaction |
url |
https://doi.org/10.26748/KSOE.2020.012 |
work_keys_str_mv |
AT byounghoonjung fatigueassessmentofverylargecontainershipsconsideringspringingeffectbasedonstochasticapproach AT ingyuahn fatigueassessmentofverylargecontainershipsconsideringspringingeffectbasedonstochasticapproach AT sunkeeseo fatigueassessmentofverylargecontainershipsconsideringspringingeffectbasedonstochasticapproach AT beomilkim fatigueassessmentofverylargecontainershipsconsideringspringingeffectbasedonstochasticapproach |
_version_ |
1724844835424174080 |