Effectiveness and optimal design of gill cells in minimizing differential deflection in circular VLFS

Wang, C. M., Pham, D. C. and Ang, K. K. (2007) Effectiveness and optimal design of gill cells in minimizing differential deflection in circular VLFS. Engineering Structures, 29 8: 1845-1853. doi:10.1016/j.engstruct.2006.10.010


Author Wang, C. M.
Pham, D. C.
Ang, K. K.
Title Effectiveness and optimal design of gill cells in minimizing differential deflection in circular VLFS
Journal name Engineering Structures   Check publisher's open access policy
ISSN 0141-0296
1873-7323
Publication date 2007-08-01
Year available 2006
Sub-type Article (original research)
DOI 10.1016/j.engstruct.2006.10.010
Open Access Status Not yet assessed
Volume 29
Issue 8
Start page 1845
End page 1853
Total pages 9
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Abstract Pontoon-type, very large floating structures (VLFS) carrying heavy loads in the central portion will undergo a "bowl-type" deflection shape. The resulting differential deflection may cause problems for smooth operation of equipment and compromise the structural integrity of the VLFS. In order to minimize this differential deflection, it is proposed that gill cells be introduced in the VLFS at appropriate locations. Gill cells are flooded compartments in VLFS by which the buoyancy forces are eliminated at their locations. This paper examines the effectiveness of the gill cells in a pontoon-type, circular VLFS in reducing the differential deflection as well as the stress-resultants with respect to the size and location of the gill cells. The optimal design of gill cells that minimizes the differential deflection and reduces the stress-resultants is also investigated.
Keyword Circular plate
Differential deflection
Gill cell
Hydrostatic forces
Static analysis
Stress-resultants
Very large floating structures
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ResearcherID Downloads
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