Browse by author
Lookup NU author(s): Professor Zhiqiang HuORCiD
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
© 2018, Editorial Board of Journal of Harbin Institute of Technology. All right reserved. When the side-by-side offloading operation is carried out between FLNG and LNGC, strong hydrodynamic interactions will be induced by the two hulls. The weather vane effect of single point mooring system has attracted most focuses on the analysis of side-by-side configuration in head waves. Nevertheless, the influence of oblique waves on the motion responses of the side-by-side system cannot be ignored. This article investigates the hydrodynamic responses of the side-by-side system through theoretical analysis method and model testing method. Based on the 3-D potential theory and artificial damping-lid method applied on the gap surface between two vessels, the gap water resonance and linear hydrodynamic performances of side-by-side FLNG and LNGC are studied under oblique and head waves. Middle-field method is adopted to calculate the second-order hydrodynamic parameters, and reveal the influence of wave directions on the mean drift forces of both vessels. Investigation shows that the change of wave directions within a certain range does not influence the value selection of the free surface damping, while imposes influence on the mode and amplitude of gap water resonance. The variation of wave directions affects the shielding effect between FLNG and LNGC, and the motion responses of LNGC are greatly suppressed by FLNG under oblique waves. Besides, the main components of mean drift forces on the two vessels change accordingly under different wave directions.
Author(s): Zhou K, Hu Z, Zhao D
Publication type: Article
Publication status: Published
Journal: Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Year: 2018
Volume: 50
Issue: 8
Pages: 114-123
Online publication date: 30/08/2018
Acceptance date: 02/04/2018
ISSN (print): 1007-449X
Publisher: Harbin Institute of Technology
URL: https://doi.org/10.11918/j.issn.0367-6234.201707024
DOI: 10.11918/j.issn.0367-6234.201707024
Altmetrics provided by Altmetric
