Nonlinear Methods in Offshore Engineering
Published in December 1990
Book
Hardback
562 pages
978-0-444-88457-2 (ISBN)
Description
The design of an offshore structure is based on the extreme responses experienced by the components of the structure under the influence of the environment faced by the structure in its lifetime. This volume gives a comprehensive review on the currently available and emerging techniques for the determination of extreme responses in a nonlinear marine structure and system. The volume is divided into two parts: The first part presents the nonlinear characteristics of wave-induced forces and corresponding structural responses, and the second examines the extreme value analysis of nonlinear systems relevant to offshore and marine structure design. The generic procedures for the nonlinear analysis of marine structures are reviewed, and the methods in which they may be applied to the probability analysis of extreme events is discussed. Different types of nonlinear behaviour applicable to the various classes of offshore structures are included, as well as a review of the various generic procedures for nonlinear analysis with emphasis on the time domain solution. The fundamental principles of Gaussian and non-Gaussian random processes are addressed in detail.
The design of an offshore structure is based on the extreme responses experienced by the components of the structure under the influence of the environment faced by the structure in its lifetime. This volume gives a comprehensive review on the currently available and emerging techniques for the determination of extreme responses in a nonlinear marine structure and system. The volume is divided into two parts: The first part presents the nonlinear characteristics of wave-induced forces and corresponding structural responses, and the second examines the extreme value analysis of nonlinear systems relevant to offshore and marine structure design. The generic procedures for the nonlinear analysis of marine structures are reviewed, and the methods in which they may be applied to the probability analysis of extreme events is discussed. Different types of nonlinear behaviour applicable to the various classes of offshore structures are included, as well as a review of the various generic procedures for nonlinear analysis with emphasis on the time domain solution. The fundamental principles of Gaussian and non-Gaussian random processes are addressed in detail.
The design of an offshore structure is based on the extreme responses experienced by the components of the structure under the influence of the environment faced by the structure in its lifetime. This volume gives a comprehensive review on the currently available and emerging techniques for the determination of extreme responses in a nonlinear marine structure and system. The volume is divided into two parts: The first part presents the nonlinear characteristics of wave-induced forces and corresponding structural responses, and the second examines the extreme value analysis of nonlinear systems relevant to offshore and marine structure design. The generic procedures for the nonlinear analysis of marine structures are reviewed, and the methods in which they may be applied to the probability analysis of extreme events is discussed. Different types of nonlinear behaviour applicable to the various classes of offshore structures are included, as well as a review of the various generic procedures for nonlinear analysis with emphasis on the time domain solution. The fundamental principles of Gaussian and non-Gaussian random processes are addressed in detail.
More details
Series
Language
English
Place of publication
Oxford
United Kingdom
Publishing group
Elsevier Science & Technology
Target group
College/higher education
Professional and scholarly
Dimensions
Height: 230 mm
ISBN-13
978-0-444-88457-2 (9780444884572)
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Schweitzer Classification
Content
1. Introduction. Definition of nonlinear systems. Consistent methodology. Probability distributions. 2. Environments. Wave theories. Nonlinear waves. Random waves. Wave simulation. Waves plus current. Breaking waves. Wind spectra. 3. Wave Loading on Structures. Wave force formulations. Morison equation. Modified Morison equation. Four-term Morison equation. Transverse force. Random wave force. Wave breaking force. Steady drift force. 4. Offshore Structure Response. Nonlinear motion response. Response analysis of jacket structure. Single-degree of freedom system. Moorling line analysis. Time domain solution of moored systems. Low frequency oscillation. High frequency oscillation. Damping at low and high frequency responses. Riser deflection analysis. 5. Distribution of Short-Term Wave Parameters. Wave elevation distribution. Nonlinearity of sea waves. Wave height distribution. Distribution of wide-banded wave amplitudes. Nonlinear Gaussian waves. Nonlinear non-Gaussian waves. Wave group statistics. Wave period distribution. Non-stationary wave height distribution. Wave height-period distribution. Extreme wave height-steepness distribution. Review of nonlinear wave statistics. 6. Short Term Loading Distribution. Linear systems. Linearized systems. Loading spectra. Statistics of narrow-band Morison force. Statistics of wide-band Morison force. Statistics of wave-current force. Statistics of free surface structural response. Review of nonlinear excitation statistics. 7. Short Term Response Distribution. Structural response spectrum. Statistics of nonlinearly dampled system. Statistics of drift force. Statistics of low frequency motion. Discussion of nonlinear response statistics. 8. Long-Term Response Prediction. Long-term wave height distribution. Joint distribution of H s and T z . Extrapolation of wave scatter diagram to longer duration. Long-term wave load distribution. Prediction of extreme wave loads. Return periods of extreme events and non-encounter probabilities. Bivariate short- and long-term prediction. Time and frequency domain long-term predictions. Short and long-term response prediction for nonlinear systems. Review of extreme value prediction for linear and nonlinear systems. References at the end of each chapter. Author index. Subject index.