Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations
International audience This paper presents a first control strategy to reduce the vortex induced vibrations (VIV). First, the system equations and an associated modal analysis are presented. This modal analysis shows that, for low damped resonant frequencies, there is a phase shift of ±90° between a...
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ftunivnantes:oai:HAL:hal-00575674v1 2023-05-15T14:22:07+02:00 Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations Fortaleza, Eugênio Creff, Yann Lévine, Jean IFP Energies nouvelles (IFPEN) Centre Automatique et Systèmes (CAS) Mines Paris - PSL (École nationale supérieure des mines de Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) Estoril, Portugal 2008-06-15 https://hal-mines-paristech.archives-ouvertes.fr/hal-00575674 https://doi.org/10.1115/OMAE2008-57244 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1115/OMAE2008-57244 hal-00575674 https://hal-mines-paristech.archives-ouvertes.fr/hal-00575674 doi:10.1115/OMAE2008-57244 Proceedings of the 27th International Conference on Off-shore Mechanics and Arctic Engineering 27th International Conference on Off-shore Mechanics and Arctic Engineering https://hal-mines-paristech.archives-ouvertes.fr/hal-00575674 27th International Conference on Off-shore Mechanics and Arctic Engineering, Jun 2008, Estoril, Portugal. pp.593-601, ⟨10.1115/OMAE2008-57244⟩ [SPI.AUTO]Engineering Sciences [physics]/Automatic info:eu-repo/semantics/conferenceObject Conference papers 2008 ftunivnantes https://doi.org/10.1115/OMAE2008-57244 2022-10-18T22:53:34Z International audience This paper presents a first control strategy to reduce the vortex induced vibrations (VIV). First, the system equations and an associated modal analysis are presented. This modal analysis shows that, for low damped resonant frequencies, there is a phase shift of ±90° between a periodic external force at the riser's top, and the generated vibration along the structure. This phase shift is used in the design of the control law to reduce the VIV along the structure. For some operating conditions, simulations show that the control system attenuates the VIV and reduces the vortex shedding synchronism along the structure. Simulations are presented with two different kinds of sea current profiles. The advantages of this strategy are the small external force required to reduce VIV, and the fact that no structural change is required along the structure submerged part. But a displacement sensor near the structure bottom is needed. Conference Object Arctic Université de Nantes: HAL-UNIV-NANTES Volume 5: Materials Technology; CFD and VIV 593 601 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
[SPI.AUTO]Engineering Sciences [physics]/Automatic |
spellingShingle |
[SPI.AUTO]Engineering Sciences [physics]/Automatic Fortaleza, Eugênio Creff, Yann Lévine, Jean Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations |
topic_facet |
[SPI.AUTO]Engineering Sciences [physics]/Automatic |
description |
International audience This paper presents a first control strategy to reduce the vortex induced vibrations (VIV). First, the system equations and an associated modal analysis are presented. This modal analysis shows that, for low damped resonant frequencies, there is a phase shift of ±90° between a periodic external force at the riser's top, and the generated vibration along the structure. This phase shift is used in the design of the control law to reduce the VIV along the structure. For some operating conditions, simulations show that the control system attenuates the VIV and reduces the vortex shedding synchronism along the structure. Simulations are presented with two different kinds of sea current profiles. The advantages of this strategy are the small external force required to reduce VIV, and the fact that no structural change is required along the structure submerged part. But a displacement sensor near the structure bottom is needed. |
author2 |
IFP Energies nouvelles (IFPEN) Centre Automatique et Systèmes (CAS) Mines Paris - PSL (École nationale supérieure des mines de Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
format |
Conference Object |
author |
Fortaleza, Eugênio Creff, Yann Lévine, Jean |
author_facet |
Fortaleza, Eugênio Creff, Yann Lévine, Jean |
author_sort |
Fortaleza, Eugênio |
title |
Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations |
title_short |
Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations |
title_full |
Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations |
title_fullStr |
Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations |
title_full_unstemmed |
Active Control of Vertical Risers Undergoing Vortex-Induced Vibrations |
title_sort |
active control of vertical risers undergoing vortex-induced vibrations |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal-mines-paristech.archives-ouvertes.fr/hal-00575674 https://doi.org/10.1115/OMAE2008-57244 |
op_coverage |
Estoril, Portugal |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Proceedings of the 27th International Conference on Off-shore Mechanics and Arctic Engineering 27th International Conference on Off-shore Mechanics and Arctic Engineering https://hal-mines-paristech.archives-ouvertes.fr/hal-00575674 27th International Conference on Off-shore Mechanics and Arctic Engineering, Jun 2008, Estoril, Portugal. pp.593-601, ⟨10.1115/OMAE2008-57244⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1115/OMAE2008-57244 hal-00575674 https://hal-mines-paristech.archives-ouvertes.fr/hal-00575674 doi:10.1115/OMAE2008-57244 |
op_doi |
https://doi.org/10.1115/OMAE2008-57244 |
container_title |
Volume 5: Materials Technology; CFD and VIV |
container_start_page |
593 |
op_container_end_page |
601 |
_version_ |
1766294793735897088 |