Préfacé
This book is intended for three groups: (1) students and professors of structural
and océan engineering; (2) engineers and scientists in academie institutions,
government laboratories, and industries involved in research on offshore installations, especially fluid-structure-soil interactions; and (3) practicing professional
engineers who consider conceptual designs and need to employ dynamic analysis to evaluate facilities constructed offshore. The material herein was originally
prepared by the three contributors for short courses attended by engineering
practitioners, and for university courses taken by engineering seniors and graduate students.
Compared to the first édition, this second édition includes more example
problems to illustrate the dynamic modeling, analysis, and solution of deterministic and stochastic responses for a wide variety of structures offshore, which
include buoys, moored ships, and platforms of the fixed-bottom, cable-stayed,
and gravity-type designs. Also, the extensive référencés of the first édition are
updated, especially source material involving offshore waves, structural modal
damping, and fluid-structure-soil interactions.
As in the first édition, this second édition addresses the basic physical ideas,
structural modeling, and mathematical methods needed to analyze the dynamic
behavior of structures offshore. Chapter 1 summarizes existing installations
and points out future challenges. In subséquent chapters, careful attention is
given to the many and sometimes subtle assumptions involved in formulating
both the structural model and the natural forces imposed by the often hostile
environment. The analyses in these chapters focus on plane motions of elastic
structures with linear and nonlinear restraints, motions induced by the forces of
currents, winds, waves, and earthquakes. Chapters 2 through 5 address single
degree of freedom structural models that, together with plane wave loading
théories, lead to time history prédictions of structural responses. Chapters 6
and 7 extend these analyses to statistical descriptions of both wave loading and
structural motion. Chapters 8 and 9 include the analysis and examples of multidegree of freedom linear structures. Chapter 10 deals with continuous System
analysis, including the motion of cables and pipelines. Chapter 11 addresses
current practice related to submerged pile design for structures offshore.
I sincerely hope that this book will be useful and serve as an inspiration
to engineers and researchers who design and analyze structures for the offshore
environment.
JAMES F. WILSON
Chapel Hill, North Carolina
xi
This book is intended for three groups: (1) students and professors of structural
and océan engineering; (2) engineers and scientists in academie institutions,
government laboratories, and industries involved in research on offshore installations, especially fluid-structure-soil interactions; and (3) practicing professional
engineers who consider conceptual designs and need to employ dynamic analysis to evaluate facilities constructed offshore. The material herein was originally
prepared by the three contributors for short courses attended by engineering
practitioners, and for university courses taken by engineering seniors and graduate students.
Compared to the first édition, this second édition includes more example
problems to illustrate the dynamic modeling, analysis, and solution of deterministic and stochastic responses for a wide variety of structures offshore, which
include buoys, moored ships, and platforms of the fixed-bottom, cable-stayed,
and gravity-type designs. Also, the extensive référencés of the first édition are
updated, especially source material involving offshore waves, structural modal
damping, and fluid-structure-soil interactions.
As in the first édition, this second édition addresses the basic physical ideas,
structural modeling, and mathematical methods needed to analyze the dynamic
behavior of structures offshore. Chapter 1 summarizes existing installations
and points out future challenges. In subséquent chapters, careful attention is
given to the many and sometimes subtle assumptions involved in formulating
both the structural model and the natural forces imposed by the often hostile
environment. The analyses in these chapters focus on plane motions of elastic
structures with linear and nonlinear restraints, motions induced by the forces of
currents, winds, waves, and earthquakes. Chapters 2 through 5 address single
degree of freedom structural models that, together with plane wave loading
théories, lead to time history prédictions of structural responses. Chapters 6
and 7 extend these analyses to statistical descriptions of both wave loading and
structural motion. Chapters 8 and 9 include the analysis and examples of multidegree of freedom linear structures. Chapter 10 deals with continuous System
analysis, including the motion of cables and pipelines. Chapter 11 addresses
current practice related to submerged pile design for structures offshore.
I sincerely hope that this book will be useful and serve as an inspiration
to engineers and researchers who design and analyze structures for the offshore
environment.
JAMES F. WILSON
Chapel Hill, North Carolina
xi