水弹性理论及其在超大型浮式结构物上的应用

2007-3  

上海交通大学出版社  

崔维成  

476  

　　With the fast increase of the population on earth， the supply of resources from land is approaching the limit. More and more people have realized that in order to achieve a sustainable economic development， the resources in the ocean have to be relied on. This is because in the wide ocean whose area exceeds more than two thirds of the earth surface， there exist very rich resources such as sea chemical elements， minerals under the bottom， tidy energy and ocean biological resources.　　The 21st century is a century of ocean. Many new industries such as ocean oil and gas， ocean chemical industry， deep?sea mining will be formed. In the exploitation of ocean resources and in the utilization of ocean spaces， the international marine community renewed the interest in studying the feasibility of using very large floating structures （VLFS）. In order to ensure their safety at sea， their structural responses in the sea are of particular importance. This is fundamentally a hydroelasticity problem. Due to their extreme large sizes， it is a great challenge both in theory and computational efficiency.

Chapter 1 Introduction to Very Large Floating Structures 11.1 Basic Concepts of VLFS 11.2 History of the Research and Development of VLFS 41.3 Potential Usage of VLFS 71.4 Technical Problems Involved in the Development of VLFS 91.5 Importance of the Hydroelastic Response in the Design of VLFS 12References 13Chapter 2 A Historical Review of the Theory ofHydroelasticity 17 2.1 Basic Concepts 172.2 Brief Overview of the Historical Development 18References 24Chapter 3 Hydroelasticity Theory in Time Domain 293.1 Potential Theory for an Arbitrary Floating Body 303.2 Solution Methods to the Linear Hydroelasticity in Time Domain 413.3 Nonlinear Hydroelasticity Theory in Time Domain 60References 78Chapter 4 Hydroelasticity Theory in Frequency Domain 834.1 Introduction 834.2 Potential Flow Analysis of a Floating Flexible Body 834.3 Linear Structural Dynamics of Floating Bodies 984.4 Hydroelastic Analysis 1104.5 Hydroelasiticity of Flexible Multibody Structure 1184.6 Nonlinear Hydroelasticity in Frequency Domain 1254.7 Analysis Method for the Mooring System of a Flexible Floating Body 139References 152Chapter 5 Hydroelastic Response Analyses for MatType VLFS 156 5.1 General Hydroelasticity Problem for MatType VLFS 1565.2 Analytical Solutions for Plate Model 1695.3 Eigenfunction Expansion Method 1855.4 Green Function Method for Plate Model 2005.5 Other Mixed Methods 2125.6 Time Domain Analysis 2225.7 Nonlinear Effects on Hydroelastic Responses of Plate 230References 233Chapter 6 Hydroelastic Response Analyses for MOB 2376.1 Introduction to Mobile Offshore Base 2376.2 Connector Load Calculation Model 2416.3 Model Test of a 3 Module MOB 2556.4 Numerical Results and Analysis 262References 277Chapter 7 Hydroelastic Responses of VLFS underInhomogeneous Environments 283 7.1 Introduction 2837.2 Inhomogeneous Oceanic Environments 2847.3 Massmomentum Conservation Model of Inhomogeneous Oceanic Environments 2897.4 Energy Balance Model of Inhomogeneous Oceanic Environments 3187.5 Effects of Boundaries on the Hydroelastic Responses 324References 342Chapter 8 Experimental Techniques for VLFS 3518.1 Introduction 3518.2 Progress of the Experimental Research on VLFS 3528.3 Experimental Method of VLFS 3588.4 Examples of VLFS Model Tests 371References 379Appendix A Introduction to Some Mathematical Background 381References 389Appendix B Introduction to Dynamics of Surface Gravity Waves 391References 413Appendix C Introduction to Structural Mechanics 415References 473Appendix D Unit Normal Vector of Deformable Structures 475References 476

　　With the fast increase of the population on earth, the supply of resources from land is approaching the limit. More and more people have realized that in order to achieve a sustainable economic development, the resources in the ocean have to be relied on. This is because in the wide ocean whose area exceeds more than two thirds of the earth surface, there exist very rich resources such as sea chemical elements, minerals under the bottom, tidy energy and ocean biological resources.　　The 21st century is a century of ocean. Many new industries such as ocean oil and gas, ocean chemical industry, deepsea mining will be formed. In the exploitation of ocean resources and in the utilization of ocean spaces, the international marine community renewed the interest in studying the feasibility of using very large floating structures (VLFS). In order to ensure their safety at sea, their structural responses in the sea are of particular importance. This is fundamentally a hydroelasticity problem. Due to their extreme large sizes, it is a great challenge both in theory and computational efficiency.

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