| Semi-Active TLCD Control of Fixed Offshore Platforms Using Artifical Neural Networks |
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| 作者姓名： | 李宏男 霍林生 |
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| 作者单位： | State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology Dalian 116024，China，Dalian 116024，China |
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| 基金项目： | ThisprojectwasfinanciallysupportedbytheDistinguishedYouthScienceFoundationoftheNationalNaturalScienceFoundationofChina (GrantNo .5 0 0 2 5 82 3) |
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| 摘 要： | 1 .Introductionanyoffshoreplatformshavebeenbuiltwiththedevelopmentofoceanengineering .However ,mostoffshorearelocatedinseismicregionsandtheplatformsareeasilytobeseriouslydamagedbyearthquakes.Hence ,theanti earthquakedesignhasalwaysbeenamajorpartofresearchonoffshoreplatforms.Theinclusionofvibrationabsorbersintheoffshoreplatformcanbeanattractivemethodofmitigatingseismicresponses .Vibrationabsorberscanbecategorizedintoactiveandpassive .Thetunedmassdamper (TMD)(FujinoandAbe ,1 993) ,eitherpassi…
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Semi-Active TLCD Control of Fixed Offshore Platforms Using Artifical Neural Networks |
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| LI Hong-nan and HUO Lin-sheng State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian ,China.Semi-Active TLCD Control of Fixed Offshore Platforms Using Artifical Neural Networks[J].China Ocean Engineering,2003,17(2). |
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| Authors: | LI Hong-nan and HUO Lin-sheng State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian China |
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| Institution: | LI Hong-nan 1 and HUO Lin-sheng State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | In this paper, the control method for fixed offshore platforms using semi-active tuned liquid column damper (TLCD) is presented. The equation of motion for the platform-TLCD control system is given and the semi-active control strategy is established. A back propagation artificial neural network (ANN) is used to adjust the orifice opening of TLCD because of the nonlinear motion of liquid in TLCD. The effectiveness of the control method is verified by numerical examples. |
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| Keywords: | fixed offshore platform tuned liquid column damper semi-active control neural network |
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