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 | 33 |
Extreme Forces on Large AxiSymmetric Offshore Structures in Directional Seas | 49 |
Copyright | |
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amplitude applied assessment assumed axial basic variables behaviour calculated coefficient component computed considered corrosion cost crack depth crack growth rate CTOD curve defect deterministic drag force effects Engineering environmental equation estimated evaluated extreme failure mode failure probability fatigue crack growth fatigue damage fatigue failure fatigue reliability fatigue strength Figure fracture mechanics fracture toughness frequency Gaussian geometry hindcast initial inspection instability load integration limit state function linear Lognormal LRFD material maxima maximum mean value method nonlinear normal normal distribution North Sea obtained offshore structures parameters platform predicted pressure probabilistic probability density function probability distribution quadratic random variable ratio reliability analysis reliability index residual stresses response risk S-N curve safety sea-state significant wave height simulation spectral standard deviation statistical stochastic storm stress intensity factor stress range Table tension tether tubular joints variation vector weld weldments