Fatigue damage from dynamic ice action - the FATICE project
In the FATICE project we have addressed the fatigue damage on fixed offshore structures exposed to drifting ice. This is an important challenge in the development of energy production from offshore wind in the Baltic and involves at least five element: a) define ice statistics, b) predict the struct...
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Curran Associates, Inc.
2021
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fttuhamburg:oai:tore.tuhh.de:11420/11693 2023-08-20T04:02:44+02:00 Fatigue damage from dynamic ice action - the FATICE project Høyland, Knut V. Nord, Torodd Turner, Joshua Hornnes, Vegard Gedikli, Ersegun Deniz Bjerkås, Morten Hendrikse, Hayo Hammer, Tim Ziemer, Gesa Stange, Timo Ehlers, Sören Braun, Moritz Willems, Tom Fischer, Claas 2021-01 http://hdl.handle.net/11420/11693 en eng Curran Associates, Inc. 26th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2021 978-1-7138-4100-5 26th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC 2021): (2021) http://hdl.handle.net/11420/11693 2-s2.0-85119008877 Dynamic ice action Fatigue damage Offshore structures Conference Paper Other 2021 fttuhamburg 2023-07-28T09:22:51Z In the FATICE project we have addressed the fatigue damage on fixed offshore structures exposed to drifting ice. This is an important challenge in the development of energy production from offshore wind in the Baltic and involves at least five element: a) define ice statistics, b) predict the structural response (ice-structure interaction simulations), c) estimate the fatigue damage and d) carry out scale-model tests. We have used the Copernicus database and simple analytical equations to define the large-scale ice statistics and studied down-scaling to structural scale by comparing with ice load data on the Norströmsgrund lighthouse (LOLEIF and STRICE data). The VANILLA model allows for ice-structure interaction simulations and has been validated against the full-scale LOLEIF and STRICE data and against the model-scale ice in HSVA. The fully coupled and the traditional methods are compared. In the fatigue estimations studies the assumption of linear damage accumulation is challenged and load combinations from wave, wind and ice studied by assessing simulated time-series of the different loads. The main results is that sea ice cause the higher loads than wind and waves do, but the cumulative frequency of ice loads is much smaller than for wind and waves. The traditional model-scale ice tends to be too soft and/or too viscous so that a realistic breaking pattern combined with realistic force-time series is not been obtained for large aspect ratios. HVA has developed a crushing model ice (ICMI) in which the ice crystals are larger and the texture more uniform. Conference Object Arctic Sea ice TUHH Open Research (TORE - Technische Universität Hamburg) |
institution |
Open Polar |
collection |
TUHH Open Research (TORE - Technische Universität Hamburg) |
op_collection_id |
fttuhamburg |
language |
English |
topic |
Dynamic ice action Fatigue damage Offshore structures |
spellingShingle |
Dynamic ice action Fatigue damage Offshore structures Høyland, Knut V. Nord, Torodd Turner, Joshua Hornnes, Vegard Gedikli, Ersegun Deniz Bjerkås, Morten Hendrikse, Hayo Hammer, Tim Ziemer, Gesa Stange, Timo Ehlers, Sören Braun, Moritz Willems, Tom Fischer, Claas Fatigue damage from dynamic ice action - the FATICE project |
topic_facet |
Dynamic ice action Fatigue damage Offshore structures |
description |
In the FATICE project we have addressed the fatigue damage on fixed offshore structures exposed to drifting ice. This is an important challenge in the development of energy production from offshore wind in the Baltic and involves at least five element: a) define ice statistics, b) predict the structural response (ice-structure interaction simulations), c) estimate the fatigue damage and d) carry out scale-model tests. We have used the Copernicus database and simple analytical equations to define the large-scale ice statistics and studied down-scaling to structural scale by comparing with ice load data on the Norströmsgrund lighthouse (LOLEIF and STRICE data). The VANILLA model allows for ice-structure interaction simulations and has been validated against the full-scale LOLEIF and STRICE data and against the model-scale ice in HSVA. The fully coupled and the traditional methods are compared. In the fatigue estimations studies the assumption of linear damage accumulation is challenged and load combinations from wave, wind and ice studied by assessing simulated time-series of the different loads. The main results is that sea ice cause the higher loads than wind and waves do, but the cumulative frequency of ice loads is much smaller than for wind and waves. The traditional model-scale ice tends to be too soft and/or too viscous so that a realistic breaking pattern combined with realistic force-time series is not been obtained for large aspect ratios. HVA has developed a crushing model ice (ICMI) in which the ice crystals are larger and the texture more uniform. |
format |
Conference Object |
author |
Høyland, Knut V. Nord, Torodd Turner, Joshua Hornnes, Vegard Gedikli, Ersegun Deniz Bjerkås, Morten Hendrikse, Hayo Hammer, Tim Ziemer, Gesa Stange, Timo Ehlers, Sören Braun, Moritz Willems, Tom Fischer, Claas |
author_facet |
Høyland, Knut V. Nord, Torodd Turner, Joshua Hornnes, Vegard Gedikli, Ersegun Deniz Bjerkås, Morten Hendrikse, Hayo Hammer, Tim Ziemer, Gesa Stange, Timo Ehlers, Sören Braun, Moritz Willems, Tom Fischer, Claas |
author_sort |
Høyland, Knut V. |
title |
Fatigue damage from dynamic ice action - the FATICE project |
title_short |
Fatigue damage from dynamic ice action - the FATICE project |
title_full |
Fatigue damage from dynamic ice action - the FATICE project |
title_fullStr |
Fatigue damage from dynamic ice action - the FATICE project |
title_full_unstemmed |
Fatigue damage from dynamic ice action - the FATICE project |
title_sort |
fatigue damage from dynamic ice action - the fatice project |
publisher |
Curran Associates, Inc. |
publishDate |
2021 |
url |
http://hdl.handle.net/11420/11693 |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
26th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2021 978-1-7138-4100-5 26th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC 2021): (2021) http://hdl.handle.net/11420/11693 2-s2.0-85119008877 |
_version_ |
1774713333729984512 |