Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision
Risers are commonly arranged as clusters with relatively small spacing due to economic necessity. As a consequence, collision between risers becomes an essential problem. This study presents a comprehensive assessment of various methods for riser collision probability analysis. A pair of tandem arra...
Published in: | Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2588836 2023-05-15T14:24:54+02:00 Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision Fu, Ping Leira, Bernt Johan Myrhaug, Dag 2018 http://hdl.handle.net/11250/2588836 https://doi.org/10.1115/OMAE2018-78318 eng eng ASME ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering - Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering urn:isbn:978-0-7918-5133-3 http://hdl.handle.net/11250/2588836 https://doi.org/10.1115/OMAE2018-78318 cristin:1615179 Chapter 2018 ftntnutrondheimi https://doi.org/10.1115/OMAE2018-78318 2019-09-17T06:54:40Z Risers are commonly arranged as clusters with relatively small spacing due to economic necessity. As a consequence, collision between risers becomes an essential problem. This study presents a comprehensive assessment of various methods for riser collision probability analysis. A pair of tandem arrangement risers subjected to combined current and wave loads is modelled. Three hours short-term simulation is performed in order to obtain the time history samples for the collision probability analysis. The wake effect due to the presence of the upstream riser is considered. The shortest distance between risers is calculated at each time step. Four methods for estimation of the extreme value distribution, e.g. Gumbel probability paper method, Weibull based method, average conditional exceedance rate method and moment based Hermit method, are presented, and the results obtained from different methods are compared and discussed. publishedVersion Copyright © 2018 by ASME Book Part Arctic NTNU Open Archive (Norwegian University of Science and Technology) Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering |
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Open Polar |
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NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Risers are commonly arranged as clusters with relatively small spacing due to economic necessity. As a consequence, collision between risers becomes an essential problem. This study presents a comprehensive assessment of various methods for riser collision probability analysis. A pair of tandem arrangement risers subjected to combined current and wave loads is modelled. Three hours short-term simulation is performed in order to obtain the time history samples for the collision probability analysis. The wake effect due to the presence of the upstream riser is considered. The shortest distance between risers is calculated at each time step. Four methods for estimation of the extreme value distribution, e.g. Gumbel probability paper method, Weibull based method, average conditional exceedance rate method and moment based Hermit method, are presented, and the results obtained from different methods are compared and discussed. publishedVersion Copyright © 2018 by ASME |
format |
Book Part |
author |
Fu, Ping Leira, Bernt Johan Myrhaug, Dag |
spellingShingle |
Fu, Ping Leira, Bernt Johan Myrhaug, Dag Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision |
author_facet |
Fu, Ping Leira, Bernt Johan Myrhaug, Dag |
author_sort |
Fu, Ping |
title |
Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision |
title_short |
Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision |
title_full |
Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision |
title_fullStr |
Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision |
title_full_unstemmed |
Assessment of Methods for Short-Term Extreme Value Analysis of Riser Collision |
title_sort |
assessment of methods for short-term extreme value analysis of riser collision |
publisher |
ASME |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2588836 https://doi.org/10.1115/OMAE2018-78318 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering - Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering urn:isbn:978-0-7918-5133-3 http://hdl.handle.net/11250/2588836 https://doi.org/10.1115/OMAE2018-78318 cristin:1615179 |
op_doi |
https://doi.org/10.1115/OMAE2018-78318 |
container_title |
Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering |
_version_ |
1766297349675548672 |