| Dynamic Responses of Mobile Offshore Base Connectors |
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| 作者姓名： | YU Lan |
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| 作者单位： | State Key Laboratory of Ocean Engineering，Shanghai Jiao Tong University，Shanghai 200030，China，State Key Laboratory of Ocean Engineering，Shanghai Jiao Tong University，Shanghai 200030，China，State Key Laboratory of Ocean Engineering，Shanghai Jiao Tong University，Shanghai 200030，China |
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| 基金项目： | This work was finarcially supported by the National Natural Science Foundation of China(Grant No.50039016) |
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| 摘 要： | A Mobile Offshore Base (MOB) is a multi-purpose logistics base, which can be stationed in coastal or international waters. In the conceptual design of the MOB, attention should be paid to the dynamic responses of the inter-module connectors because tremendous loads occur in the connectors. In this paper, a study on dynamic responses of the MOB connectors is carried out by use of the Rigid Module Flexible Connector (RMFC) model which assumes that the module stiffness is significantly larger than that of the connector. In the analysis, the connector is modeled as a linear spring, which restricts relative translations but allows for relative rotations of modules. The 3-D source distribution method is adopted to determine the hydrodynamic forces of the modules, and the hydrodynamic interaction between modules is taken into account. The module motions and connector loads for 12 connector stiffness cases in regular and irregular waves are calculated with the multi-rigid-body motion equations. And the calculat
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Dynamic Responses of Mobile Offshore Base Connectors |
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| YU Lan LI Run-pei and SHU Zhi
State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai ,China.Dynamic Responses of Mobile Offshore Base Connectors[J].China Ocean Engineering,2003,17(4):469-479. |
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| Authors: | YU Lan LI Run-pei and SHU Zhi
State Key Laboratory of Ocean Engineering Shanghai Jiao Tong University Shanghai China |
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| Institution: | State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai,200030, China State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai,200030, China State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai,200030, China |
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| Abstract: | A Mobile Offshore Base (MOB) is a multi-purpose logistics base, which can be stationed in coastal or international waters. In the conceptual design of the MOB, attention should be paid to the dynamic responses of the inter-module connectors because tremendous loads occur in the connectors. In this paper, a study on dynamic responses of the MOB connectors is carried out by use of the Rigid Module Flexible Connector (RMFC) model which assumes that the module stiffness is significantly larger than that of the connector. In the analysis, the connector is modeled as a linear spring, which restricts relative translations but allows for relative rotations of modules. The 3-D source distribution method is adopted to determine the hydrodynamic forces of the modules, and the hydrodynamic interaction between modules is taken into account. The module motions and connector loads for 12 connector stiffness cases in regular and irregular waves are calculated with the multi-rigid-body motion equations. And the calculated results are compared with those from relative references. It is shown that the results obtained by different methods are in good agreement. |
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| Keywords: | mobile offshore base dynamic responses interaction connector loads |
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