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 165
... period . Initial Averaging Period ( IAP ) Data storage requirements are large if pressure data taken every ten seconds are stored at each platform site . Therefore it is economical to collect data and average them over for instance each ...
... period . Initial Averaging Period ( IAP ) Data storage requirements are large if pressure data taken every ten seconds are stored at each platform site . Therefore it is economical to collect data and average them over for instance each ...
Page 166
... period . Such a short interval and an interval of half an hour does have the advantage that the wave elimate in terms of spectral wave paramenters can be considered constant during that period . In this context an initial data averaging ...
... period . Such a short interval and an interval of half an hour does have the advantage that the wave elimate in terms of spectral wave paramenters can be considered constant during that period . In this context an initial data averaging ...
Page 264
... period may be made from Fig.3 : The evaluated result on the ith factor is Table . 1 ( 44 ) N ( 10 ) N N N N2 N , ABC .20 .40 .60 .80 .50 .75 .875 .94 .30 .55 .75 .90 1.0 3885 1.0 1.0 B1 = UR ; = [ bik xp where bik = 2 ; rijk ( i = 1,2 ...
... period may be made from Fig.3 : The evaluated result on the ith factor is Table . 1 ( 44 ) N ( 10 ) N N N N2 N , ABC .20 .40 .60 .80 .50 .75 .875 .94 .30 .55 .75 .90 1.0 3885 1.0 1.0 B1 = UR ; = [ bik xp where bik = 2 ; rijk ( i = 1,2 ...
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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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