Dynamic Analysis for an Internally Coupled Fluid/Riser System
Risers are fluid conduits from subsea equipment to surface floating production platforms. The integrity of a riser system plays a very important role in deepwater developments. A top-tensioned riser generally consists of outer casing, inner casing and tubing. The pipes are coupled either through flu...
Published in: | 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B |
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American Society of Mechanical Engineers
2010
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ftmit:oai:dspace.mit.edu:1721.1/109298 2023-06-11T04:07:28+02:00 Dynamic Analysis for an Internally Coupled Fluid/Riser System Cheng, Yongming Vandiver, John Kim Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Department of Ocean Engineering Cheng, Yongming Vandiver, John Kim 2010-06 application/pdf http://hdl.handle.net/1721.1/109298 en_US eng American Society of Mechanical Engineers http://dx.doi.org/10.1115/OMAE2010-20193 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B 978-0-7918-4913-2 http://hdl.handle.net/1721.1/109298 Cheng, Yongming, and J. Kim Vandiver. “Dynamic Analysis for an Internally Coupled Fluid/Riser System.” 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B (2010). orcid:0000-0002-6144-660X Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Society of Mechanical Engineers (ASME) Article http://purl.org/eprint/type/ConferencePaper 2010 ftmit https://doi.org/10.1115/OMAE2010-20193 2023-05-29T08:21:00Z Risers are fluid conduits from subsea equipment to surface floating production platforms. The integrity of a riser system plays a very important role in deepwater developments. A top-tensioned riser generally consists of outer casing, inner casing and tubing. The pipes are coupled either through fluids in the annuli or through intermediate guides (centralizers) or through both. This paper investigates the dynamic analysis for such an internally coupled fluid/ riser system. This paper first presents a theoretical formulation for a general riser system coupled with fluids in the annuli and centralizers between pipes. Hydrodynamic forces associated with the viscous fluid in between concentric cylinders are considered. An effective dynamic stiffness matrix method is then developed to evaluate the added mass and damping influence of the fluid on the natural frequencies and the dynamic response of the coupled riser system. A riser example is used to illustrate the fluid coupling impact on the system’s dynamic performance. The coupling through the fluid and centralizers can be optimally designed such that an inner pipe acts as a vibration absorber to the outer casing. SHEAR7 JIP Article in Journal/Newspaper Arctic DSpace@MIT (Massachusetts Institute of Technology) 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B 257 267 |
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ftmit |
language |
English |
description |
Risers are fluid conduits from subsea equipment to surface floating production platforms. The integrity of a riser system plays a very important role in deepwater developments. A top-tensioned riser generally consists of outer casing, inner casing and tubing. The pipes are coupled either through fluids in the annuli or through intermediate guides (centralizers) or through both. This paper investigates the dynamic analysis for such an internally coupled fluid/ riser system. This paper first presents a theoretical formulation for a general riser system coupled with fluids in the annuli and centralizers between pipes. Hydrodynamic forces associated with the viscous fluid in between concentric cylinders are considered. An effective dynamic stiffness matrix method is then developed to evaluate the added mass and damping influence of the fluid on the natural frequencies and the dynamic response of the coupled riser system. A riser example is used to illustrate the fluid coupling impact on the system’s dynamic performance. The coupling through the fluid and centralizers can be optimally designed such that an inner pipe acts as a vibration absorber to the outer casing. SHEAR7 JIP |
author2 |
Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Department of Ocean Engineering Cheng, Yongming Vandiver, John Kim |
format |
Article in Journal/Newspaper |
author |
Cheng, Yongming Vandiver, John Kim |
spellingShingle |
Cheng, Yongming Vandiver, John Kim Dynamic Analysis for an Internally Coupled Fluid/Riser System |
author_facet |
Cheng, Yongming Vandiver, John Kim |
author_sort |
Cheng, Yongming |
title |
Dynamic Analysis for an Internally Coupled Fluid/Riser System |
title_short |
Dynamic Analysis for an Internally Coupled Fluid/Riser System |
title_full |
Dynamic Analysis for an Internally Coupled Fluid/Riser System |
title_fullStr |
Dynamic Analysis for an Internally Coupled Fluid/Riser System |
title_full_unstemmed |
Dynamic Analysis for an Internally Coupled Fluid/Riser System |
title_sort |
dynamic analysis for an internally coupled fluid/riser system |
publisher |
American Society of Mechanical Engineers |
publishDate |
2010 |
url |
http://hdl.handle.net/1721.1/109298 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
American Society of Mechanical Engineers (ASME) |
op_relation |
http://dx.doi.org/10.1115/OMAE2010-20193 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B 978-0-7918-4913-2 http://hdl.handle.net/1721.1/109298 Cheng, Yongming, and J. Kim Vandiver. “Dynamic Analysis for an Internally Coupled Fluid/Riser System.” 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B (2010). orcid:0000-0002-6144-660X |
op_rights |
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
op_doi |
https://doi.org/10.1115/OMAE2010-20193 |
container_title |
29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B |
container_start_page |
257 |
op_container_end_page |
267 |
_version_ |
1768380633130729472 |