Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 86
Results Marginal probabilities of mission failure can now be computed , using the formulated BPNs for the steps , see Figure 8. In order to obtain the probability of mission failure for the entire decommissioning option , the steps are ...
Results Marginal probabilities of mission failure can now be computed , using the formulated BPNs for the steps , see Figure 8. In order to obtain the probability of mission failure for the entire decommissioning option , the steps are ...
Page 126
Figure 3b Probability density functions for wall thickness Figure 5 Probability of failure due to fatigue crack growth Probability Density Functions for Wall Thickness 1.8 Actual Population Population inferred from 20 Samplos Population ...
Figure 3b Probability density functions for wall thickness Figure 5 Probability of failure due to fatigue crack growth Probability Density Functions for Wall Thickness 1.8 Actual Population Population inferred from 20 Samplos Population ...
Page 197
Eq . 17 a pf = 1-07 ( 1- P1 , ) failures will occur at the same time and the probability of system failure in any year is the same as the probability of any one crack site failing . As correlation reduces so the failure probability ...
Eq . 17 a pf = 1-07 ( 1- P1 , ) failures will occur at the same time and the probability of system failure in any year is the same as the probability of any one crack site failing . As correlation reduces so the failure probability ...
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acceptable analysis applied approach assessment associated assumed calculated coefficient combined components considered corresponding corrosion cost crack criteria damage dependent depth determined developed directional distribution dynamic effect element Engineering environmental equation estimate evaluated example expected expressed extreme factor failure fatigue Figure force frequency function fuzzy given important increase initial inspection limit load loss maintenance marine maximum mean measures Mechanics method motion normal observed obtained offshore operations parameters peak performed period pipe pipeline platform possible prediction present probability procedure production random range relative reliability represented response return period riser risk safety ship shown shows significant simulation spectral spectrum statistical steel storm strength stress structure surface Table theory typical uncertainty variables wave height wind