| Fuzzy Fatigue Reliability Analysis of Offshore Platforms in Ice-Infested Waters |
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| 作者姓名： | 方华灿 段梦兰 贾星兰 谢彬 |
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| 作者单位： | University of Petroleum，Department of Mechanical Engineering，Beijing University of Aeronautics and Astronautics，Offshore Oil Engineering Co. LTD Changping，Beijing 102200，China，Yangtze University，Jingzhou 434023，China，Beijing 100083，China，Tanggu，Tianjin 300452，China |
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| 基金项目： | ThisresearchwasfinanciallysupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .5 9895 410 ) |
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| 摘 要： | 1 .IntroductionTheBohaiGulfisinfestedbyiceinthewholewinter,andoffshorestructuresthereexperiencenotonlywind ,waves ,currentsandearthquake ,butalsoiceloadswhicharecomplicatedbecauseofthedynamicinteractionbetweenicesheetsandstructures.Duanetal.( 2 0 0 0 )hadacomprehensivere viewofthelatestadvancesonice inducedvibration ,fatigueandfractureofoffshorestructures ,payingmuchattentiontothedifferencesinicebreakingmodeanddynamicsofstructuresindifferentice in festedwaters .Theypresentedcriticallythelates…
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Fuzzy Fatigue Reliability Analysis of Offshore Platforms in Ice-Infested Waters |
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| FANG Hua-cana,DUAN Meng-lan b,JIA Xing-lanc and XIE Bind a University of Petroleum,Changping,Beijing ,China b.Fuzzy Fatigue Reliability Analysis of Offshore Platforms in Ice-Infested Waters[J].China Ocean Engineering,2003,17(3). |
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| Authors: | FANG Hua-cana DUAN Meng-lan b JIA Xing-lanc and XIE Bind a University of Petroleum Changping Beijing China b |
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| Institution: | FANG Hua-cana,DUAN Meng-lan b,1,JIA Xing-lanc and XIE Bind a University of Petroleum,Changping,Beijing 102200,China b Department of Mechanical Engineering,Yangtze University,Jingzhou 434023,China c Beijing University of Aeronautics and Astronautics,Beijing 100083,China d Offshore Oil Engineering Co. LTD,Tanggu,Tianjin 300452,China |
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| Abstract: | The calculation of fatigue stress ranges due to random waves and ice loads on offshore structures is discussed, and the corresponding accumulative fatigue damages of the structural members are evaluated. To evaluate the fatigue damage to the structures more accurately, the Miner rule is modified considering the fuzziness of the concerned parameters, and a new model for fuzzy fatigue reliability analysis of offshore structures members is developed. Furthermore, an assessment method for predicting the dynamics of the fuzzy fatigue reliability of structural members is provided. |
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| Keywords: | ice wave offshore structure fuzzy reliability fatigue Miner rule |
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