The configuration and tension distribution of mooring lines are particularly important for the design in deep-water platform systems. However, such a problem has not been fully understood because of the complicated of wave and seabed. In this paper, Lumped Mass Method is used to build a two-dimension model that can be calculated by using the formulation of geometric and equilibrium equations. As a quasi-static analysis, the configuration and tension distribution of various mooring lines are presented under the combined impact of currents and waves. The hydrodynamic loads of current and wave are calculated by using Airy wave theory and Morison equation. Then, the interaction between mooring lines and soil is also considered in this paper. A comprehensive comparison between the present model and previous result is performed and shows good agreement. The results of the parameter analysis demonstrate the significant effects of pre-tension and current velocity and shear strength on the tension distribution and configuration of mooring line.
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The Twenty-fourth International Ocean and Polar Engineering Conference
June 15–20, 2014
Busan, Korea
ISBN:
978-1-880653-91-3
Quasi-static Analysis of Mooring Line Tension Under Combined Impact of Wave, Current and Soil
Xiang-Lian Zhoua;
Xiang-Lian Zhoua
Shanghai JiaoTong University
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Jian-Hua Wanga
Jian-Hua Wanga
Shanghai JiaoTong University
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Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, Busan, Korea, June 2014.
Paper Number:
ISOPE-I-14-188
Published:
June 15 2014
Citation
Zhanga, Jun, Zhoua, Xiang-Lian, Guoa, Jun-Jie, and Jian-Hua Wanga. "Quasi-static Analysis of Mooring Line Tension Under Combined Impact of Wave, Current and Soil." Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, Busan, Korea, June 2014.
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