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dc.contributor.authorCheng, Yongming
dc.contributor.authorVandiver, John Kim
dc.date.accessioned2017-05-23T15:42:09Z
dc.date.available2017-05-23T15:42:09Z
dc.date.issued2010-06
dc.identifier.isbn978-0-7918-4913-2
dc.identifier.urihttp://hdl.handle.net/1721.1/109298
dc.description.abstractRisers 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.en_US
dc.description.sponsorshipSHEAR7 JIPen_US
dc.language.isoen_US
dc.publisherAmerican Society of Mechanical Engineersen_US
dc.relation.isversionofhttp://dx.doi.org/10.1115/OMAE2010-20193en_US
dc.rightsArticle 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.en_US
dc.sourceAmerican Society of Mechanical Engineers (ASME)en_US
dc.titleDynamic Analysis for an Internally Coupled Fluid/Riser Systemen_US
dc.typeArticleen_US
dc.identifier.citationCheng, 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).en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Ocean Engineeringen_US
dc.contributor.mitauthorCheng, Yongming
dc.contributor.mitauthorVandiver, John Kim
dc.relation.journal29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and Ben_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsCheng, Yongming; Vandiver, J. Kimen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-6144-660X
mit.licensePUBLISHER_POLICYen_US


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