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 61
... Tension The design criterion for no slack reads T2 + T3 - T4 - T5 + T6 - T8 - T9 > 0 ( 41 ) ( 42 ) where the notation is the same as for maximum tension . The limit state function for minimum tension in tethers can than be written as g ...
... Tension The design criterion for no slack reads T2 + T3 - T4 - T5 + T6 - T8 - T9 > 0 ( 41 ) ( 42 ) where the notation is the same as for maximum tension . The limit state function for minimum tension in tethers can than be written as g ...
Page 145
... tension . b : The tether tension shall not exceed the yield strength . According to present norwegian standards [ 10 ] the ULS checks are carried out using a partial load and resistance factor for- mat . Two different load combinations ...
... tension . b : The tether tension shall not exceed the yield strength . According to present norwegian standards [ 10 ] the ULS checks are carried out using a partial load and resistance factor for- mat . Two different load combinations ...
Page 146
... tension 14 13 Maximum tension 12 300m 450m 11 100m 450m 10 600m 9 8 7 6 5 4 3 2 1 1 600m 0.1 0.2 0.3 0.4 0.5 0.6 0.7 To Figure 3 : Reliability index as a function of mean tether preten- sion force . The sensitivity factors for the tension ...
... tension 14 13 Maximum tension 12 300m 450m 11 100m 450m 10 600m 9 8 7 6 5 4 3 2 1 1 600m 0.1 0.2 0.3 0.4 0.5 0.6 0.7 To Figure 3 : Reliability index as a function of mean tether preten- sion force . The sensitivity factors for the tension ...
Contents
Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |
OFFSHORE TECHNOLOGY PART A | 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 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 vector Weibull distribution weld weldments