- •Contents
- •Preface
- •1. Main dimensions and main ratios
- •1.3 Depth, draught and freeboard
- •1.7 The design equation
- •1.8 References
- •2. Lines design
- •2.1 Statement of the problem
- •2.2 Shape of sectional area curve
- •2.3 Bow and forward section forms
- •2.4 Bulbous bow
- •2.5 Stern forms
- •2.6 Conventional propeller arrangement
- •2.7 Problems of design in broad, shallow-draught ships
- •2.8 Propeller clearances
- •2.9 The conventional method of lines design
- •2.10 Lines design using distortion of existing forms
- •2.12 References
- •3. Optimization in design
- •3.1 Introduction to methodology of optimization
- •3.2 Scope of application in ship design
- •3.3 Economic basics for optimization
- •3.4 Discussion of some important parameters
- •3.5 Special cases of optimization
- •3.6 Developments of the 1980s and 1990s
- •3.7 References
- •4. Some unconventional propulsion arrangements
- •4.1 Rudder propeller
- •4.2 Overlapping propellers
- •4.3 Contra-rotating propellers
- •4.4 Controllable-pitch propellers
- •4.5 Kort nozzles
- •4.6 Further devices to improve propulsion
- •4.7 References
- •5. Computation of weights and centres of mass
- •5.1 Steel weight
- •5.3 Weight of engine plant
- •5.4 Weight margin
- •5.5 References
- •6. Ship propulsion
- •6.1 Interaction between ship and propeller
- •6.2 Power prognosis using the admiralty formula
- •6.3 Ship resistance under trial conditions
- •6.4 Additional resistance under service conditions
- •6.5 References
- •Appendix
- •A.1 Stability regulations
- •References
- •Nomenclature
- •Index
Index
Acronyms and abbreviations, 214 Admiralty formula, 184
Affine distortion, 69 Air entrainment, 129 Alexander formula, 25
Amtsberg's calculation, 119 Angle of entry, 40, 79 Angle of heel, 206
Angles of inclination, 12, 206 Appendages, 200
Asymmetric aftbodies, 133, 145 Ayre, 3, 189
Bilge, 27, 29, 70, 200
Block coefficient, 24, 51, 100
Bow, 37, 42
Building costs, 93
Bulbous bow, 42
Canal, 2 Capital, 93
Carrying capacity, 16, 51, 102 Cavitation, 113, 114, 118, 129, 141 Centre of buoyancy, 8, 10, 35, 66, 67, 69 Centre of gravity, 7, 8, 14, 35, 37 Centre of mass, 149, 163, 172, 177, 178 CFD, 79
CHWARISMI, 107
Classification society, 13, 132, 157, 163 Coefficient methods for steel weight, 152 Concept exploration model, 106 Construction of steel hull, 104 Containership, 24, 30, 35, 104, 153, 158 Container stowage, 27, 35, 104, 159 Contra-rotating propeller, 114 Controllable-pitch propeller, 115
Costs, 93, 95, 96, 141
Counter, 52, 53, 56, 61, 129 CRF, 91
CWL, 41, 45
Damaged stability, 9, 211 Deck cranes, 171 Deckhouse, 15, 163 Depth, 13
Design: equation, 33 waterplane, 72
Det Norske Veritas, 63, 153 Diesel, 158, 173, 175 Dimensions:
restriction of, 2, 4 Discounting, 91 Distortion, 4, 68 Draught, 6, 13, 61 Dynamic stability, 206
Economic basics of optimization, 91 Electric power transmission, 177 Engine plant, 94, 97, 173 Equipment and outfit, 94, 166
Fin effect, 48
Flared side walls, 30 Forward section form, 37, 40 Form factor, 187
Freeboard, 14, 17, 99 Freight rate, 92, 102 Friction resistance, 186 Froude number, 4
Fuel consumption, 97
218
Gearbox, 175
GM, see Metacentric height
Grim vane wheel, 132, 145
Grothues spoilers, 134
Hatchway covers, 169
Heeling moment, 209, 212
High-tensile steel, 158
Hollenbach, 197
Hold size, 104
Horn, see Kort nozzle
Hull steel, 93, 151
Ice, 9, 47, 61, 158, 211
ICLL, 17
IMO, 24, 204
Initial costs, 93
Initial stability, 9, 100, 206
Intact stability, 8, 206
ITTC, 199
Jensen, 26, 28, 36, 201
Kaplan propeller, 129
Kerlen, 94, 153
Kort nozzle, 115
lcb, 35, 66, 67, 69 Length, 2, 51, 98 Light metal, 8, 165
Linear distortion, see Affine distortion Lines design, 34, 66
Loading equipment, 170
Maintenance, 95
Margin of weight, 178
Metacentric height, 7, 208
Midship section, 27
Murray, 11, 154
Net present value (NPV), 92 Nomenclature, see Acronyms Normand, 10, 112
Nozzle, see Kort nozzle
Operating costs, 95
Optimization, 85
Index 219
Optimization shell, 107
Overhead, 95
Parabolic bow, 41 Plate curvature, 27, 104 Posdunine, 3
Power-equivalent length, 50
Power saving, 49, 124, 133, 134, 138, 142
Prismatic coefficient, 24, 66 Production costs, 93, 104 Profile
Propeller, 60, 63, 112, 175 Propulsion, 97, 112, 175, 180
Rahola, 206 Refrigeration, 162, 177 Repair, 95
Repeat ship, 103
Resistance, 25, 27, 40, 48, 185 Righting arm, 28, 206
Roll, 28, 209 Roughness, 202 Rudder, 58, 65
Saddle nozzle, 130
Safety, 2, 7, 14, 208, 209, 212 SBG, 211
Schneekluth, 2, 11, 90, 154, 158 Seakeeping, 47, 100, 203 Seastate, 203
Sectional area curve, 35, 66 Sensitivity study, 87 Shallow water, 61, 200 Sheer, 16
Shelter-decker, 36, 44 Shushkin, 122, 126 Slipstream, 61, 64 SOLAS, 24, 208, 211 Speed, 5, 33, 102
Spoilers, see Grothues spoilers Spray, 40, 43, 48
Stability, 5, 8, 206 Steel, 93, 151 Stem profile, 37 Stern, 52, 62 Strohbusch, 151
Superstructure, 21, 163
Thrust, 181
Transom stern, 54
220 Index
Trapezoidal midship section, 30 Twin-screw ship, 57, 59, 64, 144, 180,
183, 199
U-section, 31, 38, 59
V-section, 31, 38, 59
Vossnack, 64
Weight, 149
Wake, 59, 182
Waterline, 40, 57
Waterplane, 31, 72
Wave resistance, 4, 81, 187 Weather criterion, 209
WED (Wake Equalizing Duct), 135, 146 Wetted surface, 185
Width, 5, 98 Winch, 164, 170 Wind, 201, 209
Yield, 92
Y-nozzle, 127