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 84
... cycles 130 MPa for 108 cycles N - ( ) - N , σ = > 108 = 270 106 130 .. b = 6.3 2. From manufacturer's information or from the fatigue resistance curve , obtain the alternating stress limit for 108 cycles . σ = 130 MPa a +1.5 . ( 0.15 ) ...
... cycles 130 MPa for 108 cycles N - ( ) - N , σ = > 108 = 270 106 130 .. b = 6.3 2. From manufacturer's information or from the fatigue resistance curve , obtain the alternating stress limit for 108 cycles . σ = 130 MPa a +1.5 . ( 0.15 ) ...
Page 102
... cycles during service are needed to ensure propeller reliability proceeding from fatigue . The fatigue failures are accumulated the most intensive during operation under severe ice conditions [ 16 ] . Estimation of extreme - possible ...
... cycles during service are needed to ensure propeller reliability proceeding from fatigue . The fatigue failures are accumulated the most intensive during operation under severe ice conditions [ 16 ] . Estimation of extreme - possible ...
Page 111
... cycle is controlled by the blunting displacement that is equal to the product of the Burgers vector and the number of dislocations from the stressed source of the crack tip . Hence , the fatigue crack growth rate is expressed by ...
... cycle is controlled by the blunting displacement that is equal to the product of the Burgers vector and the number of dislocations from the stressed source of the crack tip . Hence , the fatigue crack growth rate is expressed by ...
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