Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 4; Volume 8, Part 4American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 336
... thrust deduction factor applied to their full - scale measurements . They assumed , analagous to open water testing , that for a ship breaking level ice = TBi Riw + ARiw % INCREASE IN RESISTANCE 140 120 100 80 . 60 O Radisson Trials '79 ...
... thrust deduction factor applied to their full - scale measurements . They assumed , analagous to open water testing , that for a ship breaking level ice = TBi Riw + ARiw % INCREASE IN RESISTANCE 140 120 100 80 . 60 O Radisson Trials '79 ...
Page 337
... THRUST ( MN ) 3.0 2.5 2.0 1.5 WARC 1.2m / ACL 1.2m HSVA 1.2m Extrapolated Full Scale 1.2m ACL 0.8m HSVA 1.2 m Full Scale 0.8m 1.0 Full Power Thrust HSVA 0.8 m 0.5 0 50 100 150 200 250 300 350 400 MEASURED ICE RESISTANCE ( KIPS ) 1 2 ...
... THRUST ( MN ) 3.0 2.5 2.0 1.5 WARC 1.2m / ACL 1.2m HSVA 1.2m Extrapolated Full Scale 1.2m ACL 0.8m HSVA 1.2 m Full Scale 0.8m 1.0 Full Power Thrust HSVA 0.8 m 0.5 0 50 100 150 200 250 300 350 400 MEASURED ICE RESISTANCE ( KIPS ) 1 2 ...
Page 358
... thrust have zero mean levels , the last one since it is high pass filtered due to the long term zero drift of the ... thrust and blade bending moment will increase when the angle of attack decreases . The positive shaft thrust and blade ...
... thrust have zero mean levels , the last one since it is high pass filtered due to the long term zero drift of the ... thrust and blade bending moment will increase when the angle of attack decreases . The positive shaft thrust and blade ...
Contents
OFFSHORE MECHANICS | 1 |
The Growth of Radial Cracks in Ice Sheets | 7 |
ICE FORCES | 11 |
Copyright | |
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analysis applied approach Arctic assumed average body calculated coefficient components compression compressive stress computed considered constant crack creep damage deformation dependent depth described determined developed diameter direction distribution effect elastic energy Engineering equation estimate experiments expression factor failure field Figure floe force fracture frequency function given grain grain boundary horizontal ice sheet iceberg impact increase initial International length limit load mass material maximum mean measured Mechanics method microcracks motion normal nucleation observed obtained Offshore operation parameters peak performed plane position predicted present pressure probability range ratio Regions relation relative Research resistance ridge samples sea ice shear ship shown shows simulation specimen strain rate strength stress structure surface Table temperature tensile tensor tests thickness toughness uniaxial vertical wave