| Dynamic Response Analysis for Embedded Large-Cylinder Breakwaters Under Wave Excitation |
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| 作者姓名： | 王元战 祝振宇 周枝荣 |
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| 作者单位： | Department of Port and Coastal Engineering，Tianjin University，Tianjin 300072，China，Department of Port and Coastal Engineering，Tianjin University，Tianjin 300072，China，Department of Port and Coastal Engineering，Tianjin University，Tianjin 300072，China |
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| 基金项目： | ThisprojectwasfinanciallysupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .5 0 2 790 2 7) |
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| 摘 要： | 1 .IntroductionThestaticmethodsarecommonlyusedinthestabilityanalysisofembeddedlarge cylinderbreak waters .Thestaticanalysismodelscanbedividedintotwocategories :simplifiedmodels (Zhouetal.,1 995;WangandZhu ,2 0 0 2 )andfiniteelementmodels (MengandWang ,1 999) .Thesimplifiedmodelsinheritthetraditionalengineeringexperiencesandareconvenienttouseinengineeringprac tice.However,itisdifficultforthesimplifiedmodelstodepictthegeometricandphysicalpropertiesofastructure soilsystemprecisely .Thefiniteel…
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Dynamic Response Analysis for Embedded Large-Cylinder Breakwaters Under Wave Excitation |
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| WANG Yuan-zhan ,ZHU Zhen-yu and ZHOU Zhi-rong.Dynamic Response Analysis for Embedded Large-Cylinder Breakwaters Under Wave Excitation[J].China Ocean Engineering,2004,18(4). |
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| Authors: | WANG Yuan-zhan ZHU Zhen-yu and ZHOU Zhi-rong |
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| Institution: | WANG Yuan-zhan 1,ZHU Zhen-yu and ZHOU Zhi-rong Department of Port and Coastal Engineering,Tianjin University,Tianjin 300072,China |
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| Abstract: | A numerical model is developed for dynamic analysis of large-cylinder breakwaters embedded in soft soil. In the model, the large cylinder is taken as a rigid body divided into elements and the soft soil is replaced by discrete 3D nonlinear spring-dashpot systems. The numerical model is used to simulate the dynamic response of a large-cylinder breakwater to breaking wave excitation. The effects of the dynamic stress-strain relationship models of the soil, the radius and embedded depth of the cylinder, the nonlinear behaviors of the soil, and the limit strength condition of the soil on the dynamic responses of the large-cylinder structure are investigated with an example given. It is indicated that the above-mentioned factors have significant effects on the dynamic responses of an embedded large cylinder breakwater under breaking wave excitation. |
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| Keywords: | Embedded large-cylinder dynamic response discrete rigid body |
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