OrcaFlex Manual - Orcina

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Contents 8 w 6.5.23 Wave Scatter Conversion 247 6.6 Solid Friction Coefficients Data 251 6.7 Vessels 252 6.7.1 Vessel Modelling Overview 254 6.7.2 Vessel Data 255 6.7.3 Vessel Types 264 6.7.4 Modelling Vessel Slow Drift 292 6.7.5 Vessel Response Reports 294 6.7.6 Vessel Results 296 6.8 Lines 300 6.8.1 Line Data 302 6.8.2 Line Types 318 6.8.3 Attachments 330 6.8.4 Line Contact 334 6.8.5 Rayleigh Damping 340 6.8.6 P-y Models 343 6.8.7 Line Results 346 6.8.8 Drag Chain Results 358 6.8.9 Flex Joint Results 359 6.8.10 Line Setup Wizard 359 6.8.11 Line Type Wizard 360 6.8.12 Chain 361 6.8.13 Rope/Wire 366 6.8.14 Line with Floats 369 6.8.15 Homogeneous Pipe 373 6.8.16 Hoses and Umbilicals 375 6.8.17 Modelling Stress Joints 377 6.8.18 Modelling Bend Restrictors 379 6.8.19 Modelling non-linear homogeneous pipes 381 6.8.20 Line Ends 383 6.8.21 Modelling Compression in Flexibles 386 6.9 6D Buoys 387 6.9.1 Wings 388 6.9.2 Common Data 389 6.9.3 Applied Loads 391 6.9.4 Wing Data 391 6.9.5 Wing Type Data 392 6.9.6 Lumped Buoy Properties 394 6.9.7 Lumped Buoy Drawing Data 395 6.9.8 Spar Buoy and Towed Fish Properties 396 6.9.9 Spar Buoy and Towed Fish Drag & Slam 398 6.9.10 Spar Buoy and Towed Fish Added Mass and Damping 399 6.9.11 Spar Buoy and Towed Fish Drawing 400 6.9.12 Shaded Drawing 401 6.9.13 Other uses 403 6.9.14 External Functions 403 6.9.15 Properties Report 403 6.9.16 Results 404 6.9.17 Buoy Hydrodynamics 407
w 9 Contents 6.9.18 Hydrodynamic Properties of a Rectangular Box 407 6.9.19 Modelling a Surface-Piercing Buoy 410 6.10 3D Buoys 412 6.10.1 Data 413 6.10.2 Properties Report 414 6.10.3 Results 414 6.11 Winches 415 6.11.1 Data 416 6.11.2 Wire Properties 416 6.11.3 Control 417 6.11.4 Control by Stage 417 6.11.5 Control by Whole Simulation 419 6.11.6 Drive Unit 419 6.11.7 External Functions 419 6.11.8 Results 419 6.12 Links 420 6.12.1 Data 421 6.12.2 Results 422 6.13 Shapes 423 6.13.1 Data 424 6.13.2 Blocks 425 6.13.3 Cylinders 426 6.13.4 Curved Plates 426 6.13.5 Planes 427 6.13.6 Drawing 428 6.13.7 Results 429 6.14 All Objects Data Form 429 7 MODAL ANALYSIS 431 7.1 Data and Results 431 7.2 Theory 432 8 FATIGUE ANALYSIS 435 8.1 Introduction 435 8.2 Commands 436 8.3 Data 437 8.4 Load Cases Data for Regular Analysis 438 8.5 Load Cases Data for Rainflow Analysis 439 8.6 Load Cases Data for Spectral Analysis 439 8.7 Load Cases Data for SHEAR7 441 8.8 Components Data 441 8.9 Analysis Data 442 8.10 S-N and T-N Curves 443 8.11 Integration Parameters 444
Page 1: w Orcina Ltd. Daltongate Ulverston
Page 4 and 5: Contents 4 w 3.4 Libraries 40 3.4.1
Page 6 and 7: Contents 6 w 5.6 Dynamic Analysis 1
Page 10 and 11: Contents 10 w 8.12 Results 444 8.13
Page 12 and 13: Introduction, Installing OrcaFlex
Page 14 and 15: Introduction, Parallel Processing M
Page 16 and 17: Introduction, References and Links
Page 18 and 19: Introduction, References and Links
Page 21 and 22: w 2 TUTORIAL 2.1 GETTING STARTED 21
Page 23 and 24: w 23 Tutorial, Dynamic Analysis sha
Page 25 and 26: w 3 USER INTERFACE 3.1 INTRODUCTION
Page 27 and 28: w Simulation Paused 27 User Interfa
Page 29 and 30: w Keys on Main Window New model Ope
Page 31 and 32: w Rotate viewpoint left (decrement
Page 33 and 34: w General: StaticsMethod: Whole Sys
Page 35 and 36: w A text data file saved by OrcaFle
Page 37 and 38: w 37 User Interface, Model Browser
Page 39 and 40: w Cut/Copy Cut or Copy the selected
Page 41 and 42: w 3.4.1 Using Libraries 41 User Int
Page 43 and 44: w 43 User Interface, Libraries Once
Page 45 and 46: w 3.5.1 File Menu New Deletes all o
Page 47 and 48: w New Vessel New Line New 6D Buoy N
Page 49 and 50: w 3.5.5 View Menu Change Graphics M
Page 51 and 52: w Preferences 51 User Interface, Me
Page 53 and 54: w 53 User Interface, 3D Views 3D Vi
Page 55 and 56: w 55 User Interface, 3D Views � D
Page 57 and 58: w 57 User Interface, 3D Views a lin
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w 59 User Interface, 3D Views � F
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w Replay Period 61 User Interface,
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w Frame interval in real time 63 Us
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w Numeric 65 User Interface, Data F
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w � For lines you must specify th
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w 69 User Interface, Results this i
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w 71 User Interface, Results Let th
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w 73 User Interface, Results remain
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w Results 75 User Interface, Result
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w Replays 77 User Interface, Graphs
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w Axes 79 User Interface, Spreadshe
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w Command Line Parameters 81 User I
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w Wire Frame Graphics Codec 83 User
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Automation, Batch Processing Multi-
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Automation, Batch Processing 88 w N
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Automation, Batch Processing Assign
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Automation, Batch Processing Line T
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Automation, Batch Processing SHEAR7
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Automation, Batch Processing PolarT
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Automation, Batch Processing Figure
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Automation, Text Data Files Data in
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Automation, Text Data Files Selecte
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Automation, Text Data Files SHEAR7L
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Automation, Text Data Files 4.3.2 A
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Automation, Post-processing 108 w F
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Automation, Post-processing 110 w N
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Automation, Post-processing Referen
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Automation, Post-processing Command
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Automation, Post-processing Figure:
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w 5 THEORY 5.1 COORDINATE SYSTEMS 1
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w 125 Theory, Object Connections Di
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w 127 Theory, Static Analysis Final
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w 129 Theory, Static Analysis metho
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w 131 Theory, Dynamic Analysis for
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w Static Starting Position Simulati
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w 135 Theory, Friction Theory The n
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w where μ = magnitude of the vecto
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w 139 Theory, Extreme Value Statist
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w where σ = GPD scale parameter ξ
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w 143 Theory, Environment Theory Th
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w where Pu(z) = Nc(z/D)su(z)D Pu-su
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w 147 Theory, Environment Theory
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w Repenetration Offset After Uplift
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w 151 Theory, Environment Theory sp
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w Extrapolation Stretching 153 Theo
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w 155 Theory, Environment Theory st
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w 157 Theory, Vessel Theory individ
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w 159 Theory, Vessel Theory RAOs ca
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w 161 Theory, Vessel Theory Notes:
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w 163 Theory, Vessel Theory ω is t
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w surge/sway/heave M M.L roll/pitch
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w 167 Theory, Vessel Theory that co
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w 169 Theory, Vessel Theory separat
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w 171 Theory, Vessel Theory At this
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w Segment 1 Segment 2 Segment 3 Act
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w 175 Theory, Line Theory � If to
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w where component of M2 in the Sx2
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w The hysteresis model is described
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w � (90,90,90) sets Ex along -GX,
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w = v1 + p' + ω×p Therefore its a
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w y End A Stress ID z Stress OD O S
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w 5.12.16 Hydrodynamic and Aerodyna
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w 189 Theory, Line Theory Another w
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w Drag Chain Seabed Interaction 191
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w 193 Theory, Line Theory OrcaFlex
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w 195 Theory, 6D Buoy Theory clashi
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w 197 Theory, 6D Buoy Theory For Lu
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w 199 Theory, 6D Buoy Theory (due t
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w 201 Theory, 6D Buoy Theory Note:
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w α is the angle between the relat
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w 5.13.6 Contact Forces Contact For
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w Dynamic Analysis 207 Theory, Winc
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w 209 Theory, Shape Theory Finally,
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System Modelling: Data and Results,
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Modal Analysis, Theory 432 w For si
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Modal Analysis, Theory 434 w This h
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Fatigue Analysis, Commands 436 w Fo
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Fatigue Analysis, Load Cases Data f
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Fatigue Analysis, Load Cases Data f
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Fatigue Analysis, Analysis Data 442
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Fatigue Analysis, Integration Param
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Fatigue Analysis, Fatigue Points Ba
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Fatigue Analysis, How Damage is Cal
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VIV Toolbox, Frequency Domain Model
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VIV Toolbox, Time Domain Models 460
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VIV Toolbox, Time Domain Models Fil
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VIV Toolbox, Time Domain Models Wak
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VIV Toolbox, Time Domain Models Our
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