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 Hao Yu,Xiaoyu Li and Shuguang Yang.Dynamic Analysis Method of Offshore Jack-up Platforms in Regular and Random Waves[J].Journal of Marine Science and Application,2012,(1):111-118.[doi:10.1007/s11804-012-1112-7]
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Dynamic Analysis Method of Offshore Jack-up Platforms in Regular and Random Waves


Dynamic Analysis Method of Offshore Jack-up Platforms in Regular and Random Waves
Hao Yu Xiaoyu Li and Shuguang Yang
Hao Yu Xiaoyu Li and Shuguang Yang
1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China 2. Research Center, American Bureau of Shipping, Houston TX 77060, USA
jack-up platforms wave loads dynamic analysis dynamic amplification factor
A jack-up platform, with its particular structure, showed obvious dynamic characteristics under complex environmental loads in extreme conditions. In this paper, taking a simplified 3-D finite element dynamic model in extreme storm conditions as research object, a transient dynamic analysis method was proposed, which was under both regular and irregular wave loads. The steps of dynamic analysis under extreme conditions were illustrated with an applied case, and the dynamic amplification factor (DAF) was calculated for each response parameter of base shear, overturning moment and hull sway. Finally, the structural response results of dynamic and static were compared and analyzed. The results indicated that the static strength analysis of the Jack-up Platforms was not enough under the dynamic loads including wave and current, further dynamic response analysis considering both computational efficiency and accuracy was necessary.


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Supported by the National Natural Science Foundation of China (Grant No.51079034) and Fundamental Research Funds for the Central Universities (Grant No. HEUCFR1003).
Last Update: 2012-03-16