Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 18, Part 5American Society of Mechanical Engineers, 1999 - Arctic regions |
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Page 93
... turbine on the centre shaft in up to 1.4 m ice , and switched to gas turbines on all shafts in 1.5 m ice and above . Ramming was required extensively in the very thick ice . The broken channel transit was carried out with gas turbine on ...
... turbine on the centre shaft in up to 1.4 m ice , and switched to gas turbines on all shafts in 1.5 m ice and above . Ramming was required extensively in the very thick ice . The broken channel transit was carried out with gas turbine on ...
Page 94
... TURBINE - LEVEL ICE -5000 -15 -10 -5 0 5 10 15 20 PITCH DEG 0 Figure 7. Peak Normal Load versus Mean Pitch BENDING MOMENT KNM 1500 1000 500 0 -500 -1000 -1500 -2000 -2500 ♢ DIESEL ELECTRIC - CHANNEL -3000 A DIESEL ELECTRIC - LEVEL ICE ...
... TURBINE - LEVEL ICE -5000 -15 -10 -5 0 5 10 15 20 PITCH DEG 0 Figure 7. Peak Normal Load versus Mean Pitch BENDING MOMENT KNM 1500 1000 500 0 -500 -1000 -1500 -2000 -2500 ♢ DIESEL ELECTRIC - CHANNEL -3000 A DIESEL ELECTRIC - LEVEL ICE ...
Page 97
... Turbine Mode in Level Ice SPINDLE TORQUE KNM 1000 500 0 DATA ULM PREDICTION : -500 -1000 -1500 -2000 -2500 -3000 -3500 -4000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 ICE THICKNESS M Figure 19. Peak Spindle Torque versus Ice Thickness - Gas Turbine ...
... Turbine Mode in Level Ice SPINDLE TORQUE KNM 1000 500 0 DATA ULM PREDICTION : -500 -1000 -1500 -2000 -2500 -3000 -3500 -4000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 ICE THICKNESS M Figure 19. Peak Spindle Torque versus Ice Thickness - Gas Turbine ...
Contents
OMAE99PA1135 | 19 |
OMAE99PA1141 | 39 |
PROPELLERICE INTERACTION | 53 |
Copyright | |
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analysis angle applied Arctic ASME assumed average blade block boundary calculated Canada channel coefficient component conducted considered constant Copyright crack creep crushed dependence depth determined direction distribution effect Engineering equation estimate experiments factor failure field Figure floes flow force frequency friction function given height horizontal ice force ice loads ice sheet ice thickness iceberg icebreaker included increase indentation indentor interaction International layer length material maximum mean measured Mechanics method Newfoundland observed obtained occurred Offshore operations parameters peak performance predicted present pressure propeller range ratio region Report Research resistance salinity scale scour shape shear ship shown shows similar soil speed stamukha strain strength stress structure surface Table temperature tests thrust torque values vertical wave width wind zone