Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 16, Parts 2-3American Society of Mechanical Engineers, 1997 - Arctic regions |
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Page 72
... frequency 2. Evaluation of field specific factors that may influence the frequency 3. Analysis of possible consequences The first step will be to obtain the failure frequency from a suitable source . A good approach is to check two or ...
... frequency 2. Evaluation of field specific factors that may influence the frequency 3. Analysis of possible consequences The first step will be to obtain the failure frequency from a suitable source . A good approach is to check two or ...
Page 74
Leak frequency per year 0,003 0,0025 0,002 0,0015 0,001 0,0005 0 Prod . Gas risers Inj . risers Dropped Object Station keeping failure Locked turret Basic leak frequency FIGURE 2 LEAK FREQUENCIES FOR FLEXIBLE RISERS • Limit the amount ...
Leak frequency per year 0,003 0,0025 0,002 0,0015 0,001 0,0005 0 Prod . Gas risers Inj . risers Dropped Object Station keeping failure Locked turret Basic leak frequency FIGURE 2 LEAK FREQUENCIES FOR FLEXIBLE RISERS • Limit the amount ...
Page 106
... frequency distance between the swell and wind waves spectral peaks . Note that the theoretical range of variation for ID is from zero , when the two peak frequencies are coincident , to one , when the difference between both frequencies ...
... frequency distance between the swell and wind waves spectral peaks . Note that the theoretical range of variation for ID is from zero , when the two peak frequencies are coincident , to one , when the difference between both frequencies ...
Contents
SPECTRAL MODELLING OF WAVES | 1 |
RISK ANALYSIS | 33 |
PROBABILISTIC MODELLING OF WAVES | 99 |
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alloys aluminium analysis applied ASME assessment base metal bending brittle fracture calculated coefficient corrosion fatigue crack arrestability crack depth crack growth crack tip CTOD curve damage defects deformation dent Det Norske Veritas developed distribution dynamic earthquake effect energy Engineering equation estimated evaluated factor failure fatigue crack Figure fracture mechanics fracture toughness frequency function heat increase initiation inspection Japan maintenance martensitic material maximum mbar measured mechanical properties method notch observed obtained offshore structures OMAE parameters peening performed pipe plastic platform prediction pressure procedure ratio reliability response risers S-N curve safety sea water seismic shielding gas ship shown in Fig simulation single-sided welds specimens spectra spectrum statistical steel plate strain stress range surface Table temperature tensile toughness tubular underwater underwater welding vertical wave height Weibull distribution weld metal welded joints width yield strength yield stress