dynamics of offshore structures

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Dynamics Of Offshore Structures

Author : Minoo H Patel
ISBN : 9781483163345
Genre : Technology & Engineering
File Size : 45. 46 MB
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Dynamics of Offshore Structures provides an integrated treatment of the main subject areas that contribute to the design, construction, installation, and operation of fixed and floating offshore structures. The book begins with an overview of offshore oil and gas development and offshore structures. Separate chapters follow on the ocean environment; basic fluid mechanics; gravity wave theories; fluid loading on offshore structures; hydrostatics and dynamic response of floating bodies; and model testing of offshore structures. This book is prepared with particular emphasis on the fundamentals of oceanography, basic fluid mechanics, wave theory, hydrodynamics, naval architecture, and structural analysis to meet the needs of students reading ocean engineering or naval architecture, at both undergraduate and postgraduate levels. Basic equations and theoretical results are derived in a rigorous manner but sections on model testing, full-scale measurements, design, and certification are also induced to ensure that the book is of value to professional engineers seeking a balanced treatment of fundamental and practical issues.

Dynamics Of Offshore Structures

Author : James F. Wilson
ISBN : 0471275654
Genre : Technology & Engineering
File Size : 86. 73 MB
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Unique, cutting-edge material on structural dynamics and natural forces for offshore structures Using the latest advances in theory and practice, Dynamics of Offshore Structures, Second Edition is extensively revised to cover all aspects of the physical forces, structural modeling, and mathematical methods necessary to effectively analyze the dynamic behavior of offshore structures. Both closed-form solutions and the Mathematica(r) software package are used in many of the up-to-date example problems to compute the deterministic and stochastic structural responses for such offshore structures as buoys; moored ships; and fixed-bottom, cable-stayed, and gravity-type platforms. Throughout the book, consideration is given to the many assumptions involved in formulating a structural model and to the natural forces encountered in the offshore environment. These analyses focus on plane motions of elastic structures with linear and nonlinear restraints, as well as motions induced by the forces of currents, winds, earthquakes, and waves, including the latest theories and information on wave mechanics. Topics addressed include multidegree of freedom linear structures, continuous system analysis (including the motion of cables and pipelines), submerged pile design, structural modal damping, fluid-structure-soil interactions, and single degree of freedom structural models that, together with plane wave loading theories, lead to deterministic or time history predictions of structural responses. These analyses are extended to statistical descriptions of both wave loading and structural motion. Dynamics of Offshore Structures, Second Edition is a valuable text for students in civil and mechanical engineering programs and an indispensable resource for structural, geotechnical, and construction engineers working with offshore projects.

Dynamic Analysis And Design Of Offshore Structures

Author : Srinivasan Chandrasekaran
ISBN : 9788132222774
Genre : Technology & Engineering
File Size : 69. 54 MB
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This book attempts to provide readers with an overall idea of various types of offshore platform geometries. It covers the various environmental loads encountered by these structures, a detailed description of the fundamentals of structural dynamics in a class-room style, estimate of damping in offshore structures and their applications in the preliminary analysis and design. Basic concepts of structural dynamics are emphasized through simple illustrative examples and exercises. Design methodologies and guidelines, which are FORM based concepts are explained through a few applied example structures. Each chapter also has tutorials and exercises for self-learning. A dedicated chapter on stochastic dynamics will help the students to extend the basic concepts of structural dynamics to this advanced domain of research. Hydrodynamic response of offshore structures with perforated members is one of the recent research applications, which is found to be one of the effective manner of retrofitting offshore structures. Results of recent research, validated by the experimental and numerical studies are presented to update of the readers. Integration of the concepts of structural dynamics with the FORM-evolved design of offshore structures is a unique approach used in this book. The book will prove useful to the practicing and consulting offshore structural engineers, as also to students and researchers working in the field.

Dynamic Analysis Of Offshore Structures

Author : C. A. Brebbia
ISBN : UCAL:B4144245
Genre : Technology & Engineering
File Size : 70. 79 MB
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Rigid Finite Element Method In Analysis Of Dynamics Of Offshore Structures

Author : Edmund Wittbrodt
ISBN : 9783642298868
Genre : Technology & Engineering
File Size : 22. 6 MB
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This book describes new methods developed for modelling dynamics of machines commonly used in the offshore industry. These methods are based both on the rigid finite element method, used for the description of link deformations, and on homogeneous transformations and joint coordinates, which is applied to the modelling of multibody system dynamics. In this monograph, the bases of the rigid finite element method and homogeneous transformations are introduced. Selected models for modelling dynamics of offshore devices are then verified both by using commercial software, based on the finite element method, as well as by using additional methods. Examples of mathematical models of offshore machines, such as a gantry crane for Blowout-Preventer (BOP) valve block transportation, a pedestal crane with shock absorber, and pipe laying machinery are presented. Selected problems of control in offshore machinery as well as dynamic optimization in device control are also discussed. Additionally, numerical simulations of pipe-laying operations taking active reel drive into account are shown.

Hydrodynamics Of Offshore Structures

Author : Subrata Kumar Chakrabarti
ISBN : 9780905451664
Genre : Technology & Engineering
File Size : 63. 82 MB
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The subject of hydrodynamics applied to offshore structures is vast. The topics covered in this book aim to help the reader understand basic principles while at the same time giving the designer enough information for particular designs. Thus, results are given with derivations, and applications are discussed with the aid of examples, with an overview of the advantages and limitations of the method involved. This makes the book suitable as a text for undergraduate and graduate students specializing in offshore and ocean engineering.

Nonlinear And Stochastic Dynamics Of Compliant Offshore Structures

Author : Seon Mi Han
ISBN : 9789401599122
Genre : Technology & Engineering
File Size : 29. 52 MB
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The purpose of this monograph is to show how a compliant offshore structure in an ocean environment can be modeled in two and three di mensions. The monograph is divided into five parts. Chapter 1 provides the engineering motivation for this work, that is, offshore structures. These are very complex structures used for a variety of applications. It is possible to use beam models to initially study their dynamics. Chapter 2 is a review of variational methods, and thus includes the topics: princi ple of virtual work, D'Alembert's principle, Lagrange's equation, Hamil ton's principle, and the extended Hamilton's principle. These methods are used to derive the equations of motion throughout this monograph. Chapter 3 is a review of existing transverse beam models. They are the Euler-Bernoulli, Rayleigh, shear and Timoshenko models. The equa tions of motion are derived and solved analytically using the extended Hamilton's principle, as outlined in Chapter 2. For engineering purposes, the natural frequencies of the beam models are presented graphically as functions of normalized wave number and geometrical and physical pa rameters. Beam models are useful as representations of complex struc tures. In Chapter 4, a fluid force that is representative of those that act on offshore structures is formulated. The environmental load due to ocean current and random waves is obtained using Morison's equa tion. The random waves are formulated using the Pierson-Moskowitz spectrum with the Airy linear wave theory.

Dynamics Of Offshore Structures

Author : Rajeev Dubey
ISBN : 1681173581
Genre :
File Size : 44. 96 MB
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Offshore Mechanics

Author : Madjid Karimirad
ISBN : 9781119216629
Genre : Technology & Engineering
File Size : 26. 44 MB
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Offshore Mechanics: Structural and Fluid Dynamics for Recent Applications is a textbook which covers theoretical concepts in offshore mechanics with consideration to new applications. Whereas most of the books currently available in the field of offshore mechanics use traditional oil, gas, and ship industry examples in order to explain the fundamentals in offshore mechanics, this book uses more recent applications including offshore wind farms, ocean energy devices, aquaculture, floating bridges and submerged tunnels. Offshore Mechanics: Structural and Fluid Dynamics for Recent Applications covers traditional and more recent methodologies used in offshore structure modelling (including SPH and Hydro-elasticity models). It examines numerical techniques, including computational fluid dynamics and finite element method and includes easy to understand examples.

Stochastic Dynamics Of Marine Structures

Author : Arvid Naess
ISBN : 9780521881555
Genre : Mathematics
File Size : 80. 17 MB
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For students and professionals, this covers theory and methods for stochastic modelling and analysis of marine structures under environmental loads.

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