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Keywords: stress rao
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Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1313
... waves in various heading angles. And, the results were compared for the coupled and lumped methods to investigate agreements or differences of the methods. renewable energy connector roll rao matrix force vector regular wave surge rao stress rao equation subsea system rao irregular...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-351
... artificial intelligence wide band spectrum calculation interaction rayleigh pdf stress range container ship freight & logistics services machine learning fatigue damage frequency spectrum fatigue analysis fatigue life marine transportation narrow band stress rao application...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-641
... environmental variables such as wave height and hot spot stress and expresses it as a stress response amplitude operator (RAO). However, when it comes to wind load, it is proportional to the square of wind speed so it is not possible to define stress RAO induced by wind load uniquely. This makes it difficult...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-612
... analysis provides dynamic load components, fj, and stress RAO(Response Amplitude Operator) is determined from real and imaginary components of dynamic stress, i . This stress RAO is used as basic data for spectral fatigue analysis, subsequently. The stress influence coefficients are to be calculated based...
Proceedings Papers

Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-232
... ABSTRACT TOI drillship, first drillship of DSME, was designed to have more than 25 years' fatigue life against given environmental conditions. Fatigue damage in hull and hull-topside interface structures was assessed based on stochastic method. D-SAFS, developed by DSME, generates stress RAO...
Proceedings Papers

Paper presented at the The Fifteenth International Offshore and Polar Engineering Conference, June 19–24, 2005
Paper Number: ISOPE-I-05-023
... to be evaluated based on spectral fatigue analysis due to recent developments of computing capability. freight & logistics services wave height unit load component stress rao frequency hydrodynamic pressure fatigue analysis lng external pressure fatigue life fatigue analysis system load...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-043
... load item is multiplied by the corresponding stress factor to obtain the complex amplitude of stress of a single load item. They are then added together to obtain the complex amplitude of the combined stress of which the absolute amplitude is the stress RAO. - By applying Procedures-2 and -3, stresses...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-025
..., internal dynamic pressures, sectional forces, variation of gravity, and oscillatory hydrostatic pressures and hydrostatic pressure increment. spectrum subsea system stress rao fatigue lives procedure longitudinal spectral fatigue analysis fatigue damage fpso hopper knuckle connection...
Proceedings Papers

Paper presented at the The Fourth International Offshore and Polar Engineering Conference, April 10–15, 1994
Paper Number: ISOPE-I-94-018
.... weld detail subsea system british standard institution fatigue clock surface crack pontoon weld toe fatigue life oldler semisubmersible vessel finite element analysis assessment wave direction weld imperfection service life stress rao propagate conversion upstream oil & gas...
Proceedings Papers

Paper presented at the The Second International Offshore and Polar Engineering Conference, June 14–19, 1992
Paper Number: ISOPE-I-92-299
... and directions of interest produce the directional RAOs. As shown by Pauling (1979), the deflec- tion distributions along the riser can be applied to calculate the bending moments and then the bending stresses distributions. And stress RAOs of the riser can be obtained and used in the short-term predictions. 630...

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