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 17
... example , the variabil- ity of the maximum wave height in a storm , or the vari- ability of storm characteristics ( forward speeds , tracks , wind speeds ) . Other uncertainties are obviously system- atic ( Class II ) ; for example ...
... example , the variabil- ity of the maximum wave height in a storm , or the vari- ability of storm characteristics ( forward speeds , tracks , wind speeds ) . Other uncertainties are obviously system- atic ( Class II ) ; for example ...
Page 65
... example TLP located in the northern North Sea is analyzed . For the example , the dominant failure mode of the weakest component ( joint ) in the design lifetime is fatigue crack growth . Upon loss of one tether , the risk of ...
... example TLP located in the northern North Sea is analyzed . For the example , the dominant failure mode of the weakest component ( joint ) in the design lifetime is fatigue crack growth . Upon loss of one tether , the risk of ...
Page 67
... example , we assume that the bending stress at the tether mid- point is 70 % of the total stress . The varying scale parameter can thus be expressed as Pf.k = 1 . - − [ ~ + ( x ) • ( ! x B1 - √px 1 - ρ dr ( 7 ) == A ( 8 ) A [ 0.3 + ...
... example , we assume that the bending stress at the tether mid- point is 70 % of the total stress . The varying scale parameter can thus be expressed as Pf.k = 1 . - − [ ~ + ( x ) • ( ! x B1 - √px 1 - ρ dr ( 7 ) == A ( 8 ) A [ 0.3 + ...
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