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Modelling the Bouancy and Motion of a Submerged Body
Blekinge Institute of Technology, School of Engineering.
Blekinge Institute of Technology, School of Engineering.
Blekinge Institute of Technology, School of Engineering.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years))Student thesis
Abstract [en]

Modeling the dynamic of a submerged body has received a wide attention in the recent years. The trend is toward modeling the buoyancy and motion of the sub- merged body considering diĀ®erent variables affects on it. The scope of this thesis is modeling the dynamic of a submerged body by estimating its natural characteristic, m,c and k since it is necessary to design offshore structures and highly important in the ocean wave arena. An experimental study is carried out to model the dynamic of a submerged body in its heave mode. Since extracting all parameters from this experimental is not an easy task when measuring low frequencies, a numerical model is developed. The resonance frequency, added mass and the stiffness of buoy is successfully estimated. The nonlinearity of the system is detected here by comparing the estimated dynamic characteristic parameters of a different amplitudes.

Place, publisher, year, edition, pages
2009. , 64 p.
Keyword [en]
Submerged body, Dynamic characteristic, Hydrostatic stiffness, Added mass and damping, Modal test, COMSOL Multiphysics, SDOF
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-3715Local ID: oai:bth.se:arkivex36D7809EC5E9F2BEC1257616002CF2D1OAI: oai:DiVA.org:bth-3715DiVA: diva2:831027
Uppsok
Technology
Supervisors
Available from: 2015-04-22 Created: 2009-08-18 Last updated: 2015-06-30Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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