Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 2American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 60
... Uncertainty The response uncertainty can be considered as consisting of uncertainty in the transfer function the sea spectrum . The estimation of both vertical and horizontal responses is subject to uncertainty in the transfer function ...
... Uncertainty The response uncertainty can be considered as consisting of uncertainty in the transfer function the sea spectrum . The estimation of both vertical and horizontal responses is subject to uncertainty in the transfer function ...
Page 209
... uncertainty in the fatigue strength . There was no dominant source of uncertainty for these weldments . The percentages of the square of the total uncertainty due to each factor were ranked as follows : s = 37 % , 2 = 27 % , N = 20 ...
... uncertainty in the fatigue strength . There was no dominant source of uncertainty for these weldments . The percentages of the square of the total uncertainty due to each factor were ranked as follows : s = 37 % , 2 = 27 % , N = 20 ...
Page 210
... uncertainty in fatigue strength : see Table 6. Reducing the uncertainty in the bending factor ( x ) could increase the reliability factor ( RF = 0.626 ) by as much as 10 % . Equation 12 also suggests that an effort to reduce the other ...
... uncertainty in fatigue strength : see Table 6. Reducing the uncertainty in the bending factor ( x ) could increase the reliability factor ( RF = 0.626 ) by as much as 10 % . Equation 12 also suggests that an effort to reduce the other ...
Contents
Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |
OFFSHORE TECHNOLOGY PART | 19 |
Fatigue Loading | 33 |
Copyright | |
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Common terms and phrases
analysis applied approach approximately assessment assumed average basic calculated coefficient component computed considered constant corresponding cost crack growth curve cycles damage defect density depends depth derived described determined developed deviation distribution drag effects Engineering equation equivalent estimated evaluated example expected extreme factor failure failure probability fatigue Figure force fracture frequency function geometry given important included increase indicated initial inspection integration joints limit linear load Lognormal material maximum mean measured mechanics method normal obtained offshore structures operation parameters performed period platform predicted present pressure probabilistic probability procedure random variable range ratio reference relative reliability represent requirements respectively response risk safety shown shows significant simulation standard statistical storm strength stress structure surface Table tension tether tubular uncertainty variables variation wave wave height weld