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Wave study Seaflex mooring system: Wave study to illuminate how first and second order wave force transfer to and affects the loading of flexible Seaflex mooring system
Umeå University, Faculty of Science and Technology, Department of Physics.
2018 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

When constructing a marina, one must consider many factors for calculating the mooring forces transferred to the mooring system of the docks. The forces transferred from waves is of course one of the most important. The wave induced forces may be described in different orders, the first-order wave forces from the frequency domain and the second-order wave forces determined from a wave field of different standing waves acting together. All floating objects are subjected to these wave forces, but for different mooring systems the transferred mooring force may vary. To describe the need for different calculations depending on the mooring system, a comparison to a spring system is made for both a Seaflex hawser and a guided pile system, which illustrates a significant difference in transferred mooring load. This is due to the hysteresis giving a low spring constant to the Seaflex hawser, which in turn transfers very little of the frequency induced first-order forces to the mooring system. This gives the conclusion that different methods for scaling the Seaflex mooring system is needed, since the first-order wave forces are not as significant than for a semi-rigid mooring system.

Place, publisher, year, edition, pages
2018. , p. 25
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:umu:diva-148136OAI: oai:DiVA.org:umu-148136DiVA, id: diva2:1210713
External cooperation
Patrik Stenmark, Seaflex AB
Subject / course
Fysik C - Examensarbete
Educational program
Master of Science Programme in Engineering Physics
Presentation
2018-05-08, Bottenhavet, Plan 2 Fysik institution, UMEÅ, 15:15 (English)
Supervisors
Examiners
Available from: 2018-06-18 Created: 2018-05-29 Last updated: 2018-06-18Bibliographically approved

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Wave study - Seaflex AB(733 kB)33 downloads
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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
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Language
  • de-DE
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  • en-US
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  • nn-NO
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Output format
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