Introduction to Naval Architecture (eBook)

Cover 1
Contents 5
Preface to fourth edition 9
Acknowlegements 13
1 Introduction 15
Ships 15
Naval architecture and the naval architect 15
The impact of computers 20
2 Ship design 22
The requirements 22
Design 24
Developing the design 25
The design process 26
Some general design attributes 34
Safety 37
Summary 43
3 Definition and regulation 44
Definition 44
Displacement and tonnage 52
Regulation 54
Summary 62
4 Ship form calculations 63
Approximate integration 63
Spreadsheets 73
Summary 75
5 Flotation and initial stability 76
Equilibrium 76
Stability at small angles 80
Hydrostatic curves 88
Problems in trim and stability 90
Free surfaces 95
The inclining experiment 98
Summary 100
6 The external environment 101
Water and air 101
Wind 102
Waves 103
Wave statistics 113
Freak waves 114
Other extreme environments 115
Marine pollution 115
Summary 117
7 Stability at large angles 118
Stability curves 119
Weight movements 125
Dynamical stability 127
Stability standards 130
Flooding and damaged stability 132
Summary 141
8 Launching, docking and grounding 142
Launching 143
Docking 147
Grounding 153
Summary 156
9 Resistance 157
Fluid flow 157
Types of resistance 160
Calculation of resistance 171
Methodical series 176
Roughness 178
Form parameters and resistance 179
Model experiments 183
Full scale trials 183
Effective power 186
Summary 186
10 Propulsion 188
General principles 188
Propulsors 190
The screw propeller 192
Propeller thrust and torque 200
Presentation of propeller data 203
Hull efficiency elements 209
Cavitation 213
Other propulsor types 219
Ship trials 223
Main machinery power 228
Summary 230
11 Ship dynamics 232
The basic responses 232
Ship vibrations 238
Calculations 240
Vibration levels 244
Summary 246
12 Seakeeping 247
Seakeeping qualities 247
Ship motions 248
Presentation of motion data 250
Motions in irregular seas 251
Limiting factors 254
Overall seakeeping performance 257
Acquiring seakeeping data 258
Effect of ship form 261
Stabilization 262
Summary 266
13 Manoeuvring 267
Directional stability and control 268
Manoeuvring 269
Manoeuvring devices 275
Ship handling 283
Dynamic stability and control of submarines 286
Modifying the manoeuvring performance 287
Underwater vehicles 288
Summary 289
14 Main hull strength 290
Modes of failure 291
Nature of the ship’s structure 293
Forces on a ship 294
Section modulus 303
Superstructures 308
Standard calculation results 311
Transverse strength 315
Summary 317
15 Structural elements 318
Strength of individual structural elements 318
Dynamics of longitudinal strength 325
Horizontal flexure and torsion 331
Load-shortening curves 332
Finite element analysis 335
Structural safety 336
Corrosion 338
Summary 341
16 The internal environment 342
Important factors 342
Summary 348
17 Ship types 349
Merchant ships 350
High speed craft 373
Warships 377
Summary 387
References and Further reading 389
Appendix A: Units, notation and sources 399
Appendix B: The displacement sheet and hydrostatics 405
Appendix C: Glossary of terms 428
Appendix D: The Froude notation 437
Appendix E: Questions 442
Index 451