Techniques for designing elastic models of offshore structures: fluid-structure interaction - modal analysis

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TypeTechnical Report
Series titleContractor Report
Subjecttechniques; elastic models; offshore structures; modal analysis
AbstractMethodologies for performing modal analysis of a flexible structure vibrating in a fluid were developed and implemented by interfacing the SDRC I-DEAS software of the Faculty of Engineering and Applied Science and the HYDROPAN program at the Institute for Marine Dynamics. A case study involving a thin walled cylindrical shell partially submerged in water was used to demonstrate the various steps involving a "dry" mode analysis, inclusion of the added mass effect and the subsequent "wet" mode analysis. Natural frequencies were determined for the in vacuo and submerged cases.
Publication date
PublisherNational Research Council Canada. Institute for Marine Dynamics
PlaceSt. John's, NL
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number5635
NPARC number8895210
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Record identifierf1923abd-d9d8-43ea-ad74-e1dd632f138c
Record created2009-04-22
Record modified2016-10-03
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