Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 132
Cost versus water depth data for the four monopods are shown in figure 6. Two curves are given for the four platforms considered ; initial cost ( Ca ) including 1. design , fabrication of substructure and piles , and project management ...
Cost versus water depth data for the four monopods are shown in figure 6. Two curves are given for the four platforms considered ; initial cost ( Ca ) including 1. design , fabrication of substructure and piles , and project management ...
Page 238
... shown . for comparison in Figure 4 . = 3.5 log ( Hot Spot Stress Range ) - fatigue 15 1.5 2 2.5 25 3 Tz 11.5 sec • TZ - 95 sec △ Tz = 7.5 sc A TZ - 5.598c as = 4.1 ( ultimate strength ) OF = 1.7 αF = 2.2 log ( Extreme Loading ) ...
... shown . for comparison in Figure 4 . = 3.5 log ( Hot Spot Stress Range ) - fatigue 15 1.5 2 2.5 25 3 Tz 11.5 sec • TZ - 95 sec △ Tz = 7.5 sc A TZ - 5.598c as = 4.1 ( ultimate strength ) OF = 1.7 αF = 2.2 log ( Extreme Loading ) ...
Page 380
... shown in Figure 10. Also for this case , around 80 % of the contact stresses are less than 30 MPa . However , the peak between 10 and 20 Mpa is now much higher than for the current velocity of 1.3 m / s . Results for current velocity ...
... shown in Figure 10. Also for this case , around 80 % of the contact stresses are less than 30 MPa . However , the peak between 10 and 20 Mpa is now much higher than for the current velocity of 1.3 m / s . Results for current velocity ...
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amplitude applied approach Arctic Engineering assessment Bay of Campeche calculated coefficient components Conference on Offshore considered corrosion cost crack growth criteria damage deck defect distribution dynamic effect element equation estimate evaluated evidential reasoning approach factor fatigue Figure FPSO frequency function fuzzy given Guedes Soares hydrostatic test inspection planning installation jack-up linear maintenance marine maximum Mechanics and Arctic method monopod nonlinear North West Shelf obtained Offshore Mechanics offshore structures operations optimal parameters peak pipe pipeline prediction probabilistic probability density probability density function probability of failure procedure random variables reliability analysis reliability index response return period Rio de Janeiro riser risk risk based inspection safety seismic ship significant wave height simulation spectral spectrum statistical steel storm stress structural reliability subsea surface Table temperature theory ultimate strength uncertainty valves velocity water depth Weibull distribution wind