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Effects of sea-bottom topography on hydroelastic response of a pontoon-type VLFS
- Authors
- Kyoung, J.H.; Kim, B.W.; Cho, S.K.; Hong, S.Y.; Kim, J.H.; Kim, Y.S.
- Issue Date
- 2005
- Keywords
- Finite-element method; Hydroelasticity; Mode superposition; Sea-bottom topography; VLFS
- Citation
- Proceedings of the International Offshore and Polar Engineering Conference, v.2005, pp 203 - 209
- Pages
- 7
- Journal Title
- Proceedings of the International Offshore and Polar Engineering Conference
- Volume
- 2005
- Start Page
- 203
- End Page
- 209
- ISSN
- 1098-6189
- Abstract
- Influences of sea-bottom topography on the hydroelastic behavior of a Very Large Floating Structures(VLFS) are investigated experimentally and numerically. To calculate the sea-bottom effects more rigorously, finite-element method based on the variational method is used in fluid domain. Floating structure is modeled as a thin plate with uniform stiffness. The hydroelastic responses of pontoon-type VLFS are analyzed by the mode superposition method. To enhance the satisfaction of shear and moment free condition a set of orthogonal function is adopted as the mode function instead of free-free beam mode function. Flat and step-shaped sea-bottoms are considered in the experimental and numerical study. Copyright ？ 2005 by The International Society of Offshore and Polar Engineers.
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