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 64
... Present analysis 0.08 4.75 0.91 1.68 Present analysis 0.08 4.26 0.92 1.55 Lr 269 m Present analysis 0.08 3.71 0.93 1.43 E Present 5 analysis 0.16 3.60 * 0.94 1.6 310 m ANCHOR CONNECTOR VERTICAL MOTION DUE TO HE AVE , PITCH AND ROLL ...
... Present analysis 0.08 4.75 0.91 1.68 Present analysis 0.08 4.26 0.92 1.55 Lr 269 m Present analysis 0.08 3.71 0.93 1.43 E Present 5 analysis 0.16 3.60 * 0.94 1.6 310 m ANCHOR CONNECTOR VERTICAL MOTION DUE TO HE AVE , PITCH AND ROLL ...
Page 100
... Present Method ; Experiment 0.4 : Gaussian Maximum lags are 512 and 128 for a cross - spectrum and a cross - bispectrum respectively , for 12288 total data which are 10 minutes measured data for a tanker , and for 6144 total data which ...
... Present Method ; Experiment 0.4 : Gaussian Maximum lags are 512 and 128 for a cross - spectrum and a cross - bispectrum respectively , for 12288 total data which are 10 minutes measured data for a tanker , and for 6144 total data which ...
Page 101
... Present Method : Experiment : Rayleigh 0.65 0.4 : Present Method : Experiment : Gaussian 0.2 0.0 200 - 2.0 0.0 2.0 4.0 300 -4.0 n x / 0 x Fig.12 1 / n th highest expected amplitude . of semi - submersible . peak frequency of wave = 7.0 ...
... Present Method : Experiment : Rayleigh 0.65 0.4 : Present Method : Experiment : Gaussian 0.2 0.0 200 - 2.0 0.0 2.0 4.0 300 -4.0 n x / 0 x Fig.12 1 / n th highest expected amplitude . of semi - submersible . peak frequency of wave = 7.0 ...
Contents
Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |
OFFSHORE TECHNOLOGY PART | 19 |
Fatigue Loading | 33 |
Copyright | |
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analysis applied approach approximately assessment assumed average basic calculated coefficient component computed considered constant corresponding cost crack growth curve cycles damage defect density depends depth derived described determined developed deviation distribution drag effects Engineering equation equivalent estimated evaluated example expected extreme factor failure failure probability fatigue Figure force fracture frequency function geometry given important included increase indicated initial inspection integration joints limit linear load Lognormal material maximum mean measured mechanics method normal obtained offshore structures operation parameters performed period platform predicted present pressure probabilistic probability procedure random variable range ratio reference relative reliability represent requirements respectively response risk safety shown shows significant simulation standard statistical storm strength stress structure surface Table tension tether tubular uncertainty variables variation wave wave height weld