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 14
... sensitivity factors ( Sf ) for the 100 - year event . ( The sensitivity factors given in parenthesis correspond to the second set of C.O.V.'s for the respective parameters , see Table 4. ) Parameter Design Point Sensitivity h ( m ) ...
... sensitivity factors ( Sf ) for the 100 - year event . ( The sensitivity factors given in parenthesis correspond to the second set of C.O.V.'s for the respective parameters , see Table 4. ) Parameter Design Point Sensitivity h ( m ) ...
Page 21
... sensitivity of the various random variables ( Hm , BF and At ) are estimated as by - products of this analysis . A sensitivity factor is the derivative of the reliability index with respect to each random variable evaluated in the ...
... sensitivity of the various random variables ( Hm , BF and At ) are estimated as by - products of this analysis . A sensitivity factor is the derivative of the reliability index with respect to each random variable evaluated in the ...
Page 144
... sensitivity factor a , for variable U , is also computed as u β a gives the fraction of the total uncertainty which is caused by the variable U , ( and Z , if independant ) . 3 Project economy The limit state function as such is by ...
... sensitivity factor a , for variable U , is also computed as u β a gives the fraction of the total uncertainty which is caused by the variable U , ( and Z , if independant ) . 3 Project economy The limit state function as such is by ...
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