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E-raamat: Offshore Compliant Platforms: Analysis, Design, and Experimental Studies

R. Nagavinothini, Srinivasan Chandrasekaran

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Other digital carrier (Hind: 162,60 €) - 07-Feb-2020

Formaat: PDF+DRM
Sari: Wiley-ASME Press Series
Ilmumisaeg: 28-Jan-2020
Kirjastus: Wiley-ASME Press
Keel: eng
ISBN-13: 9781119669784

Teised raamatud teemal:

Offshore engineering

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Formaat: PDF+DRM
Sari: Wiley-ASME Press Series
Ilmumisaeg: 28-Jan-2020
Kirjastus: Wiley-ASME Press
Keel: eng
ISBN-13: 9781119669784

Teised raamatud teemal:

Offshore engineering

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A guide to the analysis and design of compliant offshore structures that highlights a new generation of platforms

Offshore Compliant Platforms provides an authoritative guideto the analysis and design of compliant offshore structures and puts the focus on a new generation of platforms such as: triceratops, Buoyant Leg Storage and Regasification platforms. Whilst the authors – noted experts on the topic – include basic information on the conceptual development of conventional platforms, the book presents detailed descriptions of the design and development of new deep-water platforms.

The book describes the preliminary design of triceratops in ultra-deep waters and presents a detailed analysis of environmental loads that are inherent in offshore locations such as wave, wind and current. The new methodology for the dynamic analysis of triceratops under ice loads, predominantly in ice-covered regions, is also examined with detailed parametric studies. In addition, the book covers the structural geometry and the various methods of analysis for assessing the performance of any other similar offshore platform under the special loads. A discussion of the fatigue analysis and service life prediction is also included. This important book:

•    Includes the analysis and design of compliant offshore structures with a focus on a new generation of platforms

•    Examines the preliminary design of triceratops in ultra-deep waters

•    Covers an analysis of environmental loads that are inherent in offshore locations such as wave, wind and current

•    Reviews the structural geometry and various methods of analysis for assessing the performance of any other similar offshore platform under special loads

•    Discusses fatigue analysis and service life prediction 

Written for engineers and researchers across engineering including civil, mechanical, structural, offshore, ocean and naval architecture, Offshore Compliant Platforms fills the need for a guide to new offshore platforms that provides an understanding of the behaviour of these structures under different loading conditions.

List of Figures

List of Tables

xiii

Foreword

Professor Purnendu K. Das

Foreword

xvii

Dr. Atmanand N.D.

Series Preface

xix

Preface

xxi

1 Common Compliant Platforms

(58)

1.1 Introduction

(7)

1.2 Tension Leg Platforms

(11)

1.3 Guyed Tower and Articulated Tower

(2)

1.4 Floating Structures

(3)

1.5 Response Control Strategies

(7)

1.5.1 Active Control Algorithm

(1)

1.5.2 Semi-Active Control Algorithm

(1)

1.5.3 Passive Control Algorithm

(1)

1.5.4 Friction Dampers

(1)

1.5.5 Metallic Yield Dampers

(1)

1.5.6 Viscous Fluid Dampers

(2)

1.5.7 Tuned Liquid Dampers

(1)

1.5.8 Tuned Liquid Column Damper

(1)

1.6 Tuned Mass Dampers

(5)

1.7 Response Control of Offshore Structures

(2)

1.8 Response Control of TLPs Using TMDs: Experimental Investigations

(6)

1.9 Articulated Towers

(4)

1.10 Response Control of ATs: Analytical Studies

(4)

1.11 Response Control of ATs: Experimental Studies

(7)

1.11.1 MLAT Without a TMD

(3)

1.11.2 MLAT with a TMD

(3)

2 Buoyant Leg Storage and Regasification Platforms

(36)

2.1 Background Literature

(4)

2.1.1 Buoyant Leg Structures

(1)

2.1.2 Floating Production and Processing Platforms

(1)

2.2 Experimental Setup

(1)

2.3 Experimental Investigations

(7)

2.4 Numerical Studies

(4)

2.5 Critical Observations

(9)

2.6 Stability Analysis of the BLSRP

(5)

2.7 Fatigue Analysis of the BLSRP

(5)

3 New-Generation Platforms: Offshore Triceratops

(30)

3.1 Introduction

(1)

3.2 Environmental Loads

(5)

3.2.1 Regular Waves

(1)

3.2.2 Random Waves

(1)

3.2.3 Wind

(2)

3.2.4 Currents

100

(1)

3.3 Fatigue Analysis of Tethers

101

(3)

3.4 Response to Regular Waves

104

(4)

3.5 Response to Random Waves

108

(5)

3.6 Response to Combined Actions of Wind, Waves, and Current

113

(10)

3.6.1 Deck Response

116

(4)

3.6.2 Buoyant Leg Response

120

(2)

3.6.3 Tether Tension Variation

122

(1)

3.7 Summary

123

(2)

4 Triceratops Under Special Loads

125

(36)

4.1 Introduction

125

(9)

4.1.1 Ice Load

126

(3)

4.1.2 Impact Load Due to Ship Platform Collisions

129

(2)

4.1.3 Hydrocarbon Fires

131

(3)

4.2 Continuous Ice Crushing

134

(4)

4.2.1 The Korzhavin Equation

135

(1)

4.2.2 Continuous Ice Crushing Spectrum

136

(2)

4.3 Response to Continuous Ice Crushing

138

(9)

4.3.1 Response to Ice Loads

139

(1)

4.3.1.1 Deck and Buoyant Leg Responses

139

(1)

4.3.1.2 Tether Response

140

(1)

4.3.2 Effect of Ice Parameters

140

(1)

4.3.2.1 Ice Thickness

140

(3)

4.3.2.2 Ice Crushing Strength

143

(1)

4.3.2.3 Ice Velocity

144

(1)

4.3.3 Comparison of Ice- and Wave-Induced Responses

145

(2)

4.4 Response to Impact Loads

147

(9)

4.4.1 Parametric Studies

151

(1)

4.4.1.1 IndenterSize

151

(1)

4.4.1.2 Collision Zone Location

152

(1)

4.4.1.3 Indenter Shape

153

(1)

4.4.1.4 Number of Stringers

154

(1)

4.4.2 Impact Response in the Arctic Region

154

(2)

4.5 Deck Response to Hydrocarbon Fires

156

(2)

4.6 Summary

158

(3)

5 Offshore Triceratops: Recent Advanced Applications

161

(26)

5.1 Introduction

161

(1)

5.2 Wind Turbines

161

(2)

5.3 Wind Power

163

(1)

5.4 Evolution of Wind Turbines

163

(1)

5.5 Conceptual Development of the Triceratops-Based Wind Turbine

164

(1)

5.6 Support Systems for Wind Turbines

164

(2)

5.6.1 Spar Type

165

(1)

5.6.2 TLPType

165

(1)

5.6.3 Pontoon (Barge) Type

165

(1)

5.6.4 Semi-Submersible Type

166

(1)

5.6.5 Triceratops Type

166

(1)

5.7 Wind Turbine on a Triceratops

166

(1)

5.8 Response of a Triceratops-Based Wind Turbine to Waves

166

(7)

5.8.1 Free-Decay Response

166

(3)

5.8.2 Response to Operable and Parked Conditions

169

(1)

5.8.3 Effect of Wave Heading Angles

170

(1)

5.8.4 PSD Plots

171

(1)

5.8.5 Tether Response and Service Life Estimation

172

(1)

5.9 Stiffened Triceratops

173

(6)

5.9.1 Preliminary Design

173

(2)

5.9.2 Response to Wave Action

175

(2)

5.9.3 Effect of Wave Direction

177

(2)

5.10 Triceratops with Elliptical Buoyant Legs

179

(7)

5.10.1 Conceptual Development

180

(2)

5.10.2 Response of a Triceratops with Elliptical Buoyant Legs to Wave Action

182

(4)

5.11 Summary

186

(1)

Model Test Papers

187

(22)

References

209

(14)

Index

223

Dr. Srinivasan Chandrasekaran is a Professor in the Department of Ocean Engineering at the Indian Institute of Technology Madras, Tamil Nadu, India.

R. Nagavinothini is a Post-Doctoral Researcher in the Department of Structures for Engineering and Architecture, University of Naples Federico II, Naples, Italy.

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