| Numerical Solution of Membrane Forces for A Free-Free Floating Plate with Large Deflection |
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| 作者姓名： | 陈徐均 崔维成 宋皓 汤雪峰 |
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| 作者单位： | School of Naval Architecture and Ocean Engineering，Shanghai Jiao Tong University，School of Naval Architecture and Ocean Engineering，Shanghai Jiao Tong University，School of Naval Architecture and Ocean Engineering，Shanghai Jiao Tong University，Engineering Institute of Engineering Crops，PLA University of Science and Technology Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China，Nanjing 210007，China |
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| 基金项目： | TheprojectwasjointlysupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .5 0 0 390 10 ) ,theScienceandTechnologyDevelopmentFoundationofShanghaiMunicipalGovernment (GrantNo .0 0XD140 15 )andChinaPostdoctoralScienceFoundation |
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| 摘 要： | 1 .IntroductionVerylargefloatingstructures (VLFS)haveattractedconsiderableattentionrecentlyduetoitspo tentialuseintheexploitationofoceanresourcesandintheutilizationofoceanspaces (Cui,2 0 0 2 ) .Owingtoitslargesizeandrelativelysmallthickness ,theinfluenceofelasticdeformationonthehydro dynamicresponseisimportant.Thisisknownashydroelasticity .Threedimensionallinear (Wu ,1 984;PriceandWu ,1 985)andnonlinear (Chenetal.,2 0 0 3)hydroelasticityiswellappliedtotheanalysisofthreedimensionalshipsando…
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Numerical Solution of Membrane Forces for A Free-Free Floating Plate with Large Deflection |
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| CHEN Xu-jun a,CUI Wei-cheng a SONG Hao a and TANG Xue-feng b a School of Naval Architecture and Ocean Engineering,Shanghai Jiao Tong University,Shanghai ,China b Engineering Institute of Engineering Crops,PLA University of Science and Technology,Nanjing ,China.Numerical Solution of Membrane Forces for A Free-Free Floating Plate with Large Deflection[J].China Ocean Engineering,2003,17(2). |
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| Authors: | CHEN Xu-jun a CUI Wei-cheng a SONG Hao a and TANG Xue-feng b a School of Naval Architecture and Ocean Engineering Shanghai Jiao Tong University Shanghai China b Engineering Institute of Engineering Crops PLA University of Science and Technology Nanjing China |
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| Institution: | CHEN Xu-jun a,1,CUI Wei-cheng a SONG Hao a and TANG Xue-feng b a School of Naval Architecture and Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200030,China b Engineering Institute of Engineering Crops,PLA University of Science and Technology,Nanjing 210007,China |
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| Abstract: | Considering that the thickness of a pontoon-type very large floating structure (VLFS) is very small in comparison with the length and width, VLFS can be modeled as a thin plate. In theory, the displacements and the membrane forces of a plate with large deflection are all the functions of the second-order differentials of the Ariy stress function. With these characteristics considered, the Ariy stress function of a floating free-free plate is calculated by setting the virtual values of three of the corner points. The finite difference method is chosen to solve the problem. When the Ariy stress function of the plate is obtained, the membrane forces can easily be calculated. Comparisons between the forces induced by the membrane forces and by the fluid are considered. It is shown that the membrane forces can not be neglected in many cases. |
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| Keywords: | membrane forces VLFS large deflection finite difference method |
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