Offshore Compliant Platforms: Analysis, Design, and Experimental Studies

ISBN-13: 9781119669777 / Angielski / Twarda / 2020 / 250 str.

Srinivasan Chandrasekaran; R. Nagavinothini

Spis treści

List of Figures ixList of Tables xiiiForeword by Professor Purnendu K. Das xvForeword by Dr. Atmanand N.D. xviiSeries Preface xixPreface xxi1 Common Compliant Platforms 11.1 Introduction 11.2 Tension Leg Platforms 81.3 Guyed Tower and Articulated Tower 191.4 Floating Structures 211.5 Response Control Strategies 241.5.1 Active Control Algorithm 251.5.2 Semi-Active Control Algorithm 251.5.3 Passive Control Algorithm 261.5.4 Friction Dampers 271.5.5 Metallic Yield Dampers 271.5.6 Viscous Fluid Dampers 271.5.7 Tuned Liquid Dampers 291.5.8 Tuned Liquid Column Damper 301.6 Tuned Mass Dampers 311.7 Response Control of Offshore Structures 361.8 Response Control of TLPs Using TMDs: Experimental Investigations 381.9 Articulated Towers 441.10 Response Control of ATs: Analytical Studies 481.11 Response Control of ATs: Experimental Studies 521.11.1 MLAT Without a TMD 531.11.2 MLAT with a TMD 562 Buoyant Leg Storage and Regasification Platforms 592.1 Background Literature 602.1.1 Buoyant Leg Structures 622.1.2 Floating Production and Processing Platforms 632.2 Experimental Setup 642.3 Experimental Investigations 652.4 Numerical Studies 722.5 Critical Observations 762.6 Stability Analysis of the BLSRP 852.7 Fatigue Analysis of the BLSRP 903 New-Generation Platforms: Offshore Triceratops 953.1 Introduction 953.2 Environmental Loads 963.2.1 Regular Waves 963.2.2 Random Waves 973.2.3 Wind 983.2.4 Currents 1003.3 Fatigue Analysis of Tethers 1013.4 Response to Regular Waves 1043.5 Response to Random Waves 1083.6 Response to Combined Actions of Wind, Waves, and Current 1133.6.1 Deck Response 1163.6.2 Buoyant Leg Response 1203.6.3 Tether Tension Variation 1223.7 Summary 1234 Triceratops Under Special Loads 1254.1 Introduction 1254.1.1 Ice Load 1264.1.2 Impact Load Due to Ship Platform Collisions 1294.1.3 Hydrocarbon Fires 1314.2 Continuous Ice Crushing 1344.2.1 The Korzhavin Equation 1354.2.2 Continuous Ice Crushing Spectrum 1364.3 Response to Continuous Ice Crushing 1384.3.1 Response to Ice Loads 1394.3.1.1 Deck and Buoyant Leg Responses 1394.3.1.2 Tether Response 1404.3.2 Effect of Ice Parameters 1404.3.2.1 Ice Thickness 1404.3.2.2 Ice Crushing Strength 1434.3.2.3 Ice Velocity 1444.3.3 Comparison of Ice- and Wave-Induced Responses 1454.4 Response to Impact Loads 1474.4.1 Parametric Studies 1514.4.1.1 Indenter Size 1514.4.1.2 Collision Zone Location 1524.4.1.3 Indenter Shape 1534.4.1.4 Number of Stringers 1544.4.2 Impact Response in the Arctic Region 1544.5 Deck Response to Hydrocarbon Fires 1564.6 Summary 1585 Offshore Triceratops: Recent Advanced Applications 1615.1 Introduction 1615.2 Wind Turbines 1615.3 Wind Power 1635.4 Evolution of Wind Turbines 1635.5 Conceptual Development of the Triceratops-Based Wind Turbine 1645.6 Support Systems for Wind Turbines 1645.6.1 Spar Type 1655.6.2 TLP Type 1655.6.3 Pontoon (Barge) Type 1655.6.4 Semi-Submersible Type 1665.6.5 Triceratops Type 1665.7 Wind Turbine on a Triceratops 1665.8 Response of a Triceratops-Based Wind Turbine to Waves 1665.8.1 Free-Decay Response 1665.8.2 Response to Operable and Parked Conditions 1695.8.3 Effect of Wave Heading Angles 1705.8.4 PSD Plots 1715.8.5 Tether Response and Service Life Estimation 1725.9 Stiffened Triceratops 1735.9.1 Preliminary Design 1735.9.2 Response to Wave Action 1755.9.3 Effect of Wave Direction 1775.10 Triceratops with Elliptical Buoyant Legs 1795.10.1 Conceptual Development 1805.10.2 Response of a Triceratops with Elliptical Buoyant Legs to Wave Action 1825.11 Summary 186Model Test Papers 187References 209Index 223

O autorze

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.