| Multi-Objective Fuzzy Optimum Design Based on Reliability for Offshore Jacket Platforms |
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| 作者姓名： | KANG Haigui |
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| 作者单位： | KANG Haigui LIU Wei，ZHAI Gangjun XU Facong and FENG ShengState Key Laboratory of Coastal ami Offshore Engineering，Dalian University of Technology，Dalian 116024，China Dalian Marine University，Dalian 116024，China |
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| 摘 要： | In consideration of the fuzzy constraint boundary and through analysis of structural reliability, a model of structural fuzzy optimum design is established based on reliability for offshore jacket platforms. According to the characteristics of offshore jacket platforms, the tolerance coefficient of the constraint boundary is determined with the fuzzy optimization method. The optimum level cut set which is the intersection of the fuzzy constraint set and fuzzy objective set, is determined with the bound search method, and then the fuzzy optimum solution to the fuzzy optimization problem is obtained. The central offshore platform SZ36-1 is designed with the fuzzy optimum model based on reliability; the results are compared with those from deterministic optimum design and fuzzy optimum design. The tendency of design variables in the above three methods and its reasons are analyzed. The results of an example show that the fuzzy optimum design based on reliability is stable and reliable.
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Multi-Objective Fuzzy Optimum Design Based on Reliability for Offshore Jacket Platforms |
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| KANG Haigui LIU Wei,ZHAI Gangjun XU Facong and FENG ShengState Key Laboratory of Coastal ami Offshore Engineering,Dalian University of Technology,Dalian ,China Dalian Marine University,Dalian ,China.Multi-Objective Fuzzy Optimum Design Based on Reliability for Offshore Jacket Platforms[J].China Ocean Engineering,2001(4):467-478. |
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| Authors: | KANG Haigui LIU Wei ZHAI Gangjun XU Facong and FENG ShengState Key Laboratory of Coastal ami Offshore Engineering Dalian University of Technology Dalian China Dalian Marine University Dalian China |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian 116024, China State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian 116024, China State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian 116024, China Dalian Marine University, Dalian 116024, China State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian 116024, China |
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| Abstract: | |
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| Keywords: | offshore jacket platform fuzzy constraint tolerance coefficient structural reliability |
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