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Author: Kong Sian Chua
Publisher:
ISBN:
Category : Compliant platform
Languages : en
Pages : 148
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Book Description
Author: Kong Sian Chua
Publisher:
ISBN:
Category : Compliant platform
Languages : en
Pages : 148
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Book Description
Author: Minoo H Patel
Publisher: Butterworth-Heinemann
ISBN: 1483163326
Category : Technology & Engineering
Languages : en
Pages : 423
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Book Description
Compliant Offshore Structures deals with some aspects of the mechanics of compliant offshore structures. Analysis methods for determining the hydrostatic and hydrodynamic behavior, at wave frequencies only, of conventional and novel compliant structure types are described. The contribution of hull configuration for tandem hull vessels and of pneumatic compliances for ship shape and semi-submersible vessels is also emphasized. Comprised of 11 chapters, this book begins with an overview of the various conventional and emerging methods of hydrostatic and hydrodynamic analysis that are available for characterizing compliant marine structures. The response of compliant structures to ocean waves is given emphasis, along with the hydrostatic stability of a compliant vessel. The discussion then turns to the use of analysis methods for a variety of conventional and novel compliant structures such as semi-submersibles, ship forms, tensioned buoyant platforms, crane vessels, and vertical marine risers. However, those compliant structures that are believed to have a future application or, alternatively, are useful in illustrating an interesting performance feature are also considered. Among such structures are those with articulated joints, pneumatic compliances, and tandem hull marine vehicles. This monograph is intended for practicing engineers as well as undergraduate and postgraduate students.
Author: Patrick Bar-Avi
Publisher: Routledge
ISBN: 1351428233
Category : Technology & Engineering
Languages : en
Pages : 110
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Book Description
This monograph provides a general background to the modelling of a special class of offshore structures known as compliant structures. External forcing is resisted by buoyancy and tension forces which increase when the structure is slightly offset from its equilibrium. The technical development given in this book is presented in such a way as to highlight the adaptability of the modelling, and the reader is shown how the techniques described can be applied to a variety of different offshore structures.
Author: Ashok Gupta
Publisher: Springer Science & Business Media
ISBN: 364282899X
Category : Science
Languages : en
Pages : 312
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Book Description
and Literature Rev iew Chapter 1 1. INTRODUCTION AND LITERATURE REVIEW The exploration for oil and gas in ever increasing water depths has given an impetus to research efforts on the behaviour of offshore structures under ocean environment. These structures are continuously subjected to environmental loading because of waves, wind and current. A response analysis is required to assess the safety of offshore structure under severe storm conditions as well as for estimation of damage caused by less severe but more frequently occuring sea states. A majority of the reported failures in the life time of offshore structures are in fact fatigue failures. The offshore structures are usually built in the form of welded tubular structures. The joints of these tubular members experience the fatigue damage mainly due to small defects in welding which act as crack initiators, high stress concentrations and the variable loads. The variable loads due to the ocean waves cause cyclic stress variation in the structural members and the accumu lated effect of these stresses results in the fatigue failure.
Author: Seon Mi Han
Publisher: Springer Science & Business Media
ISBN: 9401599122
Category : Technology & Engineering
Languages : en
Pages : 281
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Book Description
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.
Author: National University of Singapore
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 680
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Author: Chryssotomos Chryssostomidis
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: J. Kuvas
Publisher: Pergamon
ISBN: 9780080226934
Category :
Languages : en
Pages :
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Author: Chryssostomos Chryssostomidis
Publisher: Pergamon
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1140
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Book Description
Coverage includes: wave drift damping; response of moored structures; second-order forces and viscous damping; cable and riser mechanics; large scale flows; response of floating structures; wave kinematics and loads; ringing response; seakeeping and wave loads; and simulation of marine systems.
Author: Somchai Sumanuskajonkul
Publisher:
ISBN:
Category : Offshore structures
Languages : en
Pages : 220
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Book Description
