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1-20 of 22
Keywords: extreme response
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Proceedings Papers
Athanasios Dermatis, Vincent Leroy, Guillaume Ducrozet, Benjamin Bouscasse, Sylvain Delacroix, Henrik Bredmose, Harry Bingham
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-144
... ABSTRACT A method based on response-conditioned waves is presented, for the probabilistic assessment of the short-term extreme responses of offshore structures. It is demonstrated that this method has the potential to be an efficient alternative to Monte Carlo simulations, which might be very...
Proceedings Papers
Andre Ramiro Amorim, Daniel Nalliah Karunakaran, Danilo Abreu Souza Lima, Gabriel Rombado, Boje Tveraaen
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2132
... Abstract An efficient methodology for estimating the extreme response of risers, e.g. Steel Catenary Risers (SCR) or Steel Lazy Wave Risers (SLWR), connected to deep water floaters with large hang-off motions is presented. The conventional approach is to estimate the appropriate level of long...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1186
... induce significant high-frequency resonant and transient responses, e.g. springing and ringing, which greatly amplify the structural responses of the floating wind turbines. This study aims to predict the springing-induced extreme responses of the WindStar TLP system by using FAST__(Fatigue, Aerodynamics...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-090
... ABSTRACT A novelty floating wind turbine concept, which utilizes a newly developed triple-column spar platform to support the NREL 5MW baseline wind turbine, is proposed in this research. A modified environmental counter method is proposed to estimate the long-term extreme response...
Proceedings Papers
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-285
... of the plane are balanced with the other side forces. - Vertical X-Z-plane with origin at still water level; origin (X=0, Y=0, Z=23.15m at operating draught(Z=19.15m at survival draught)) Fig. 8: Definition of X-Z Plane for Sectional Force Design Wave Selection and Extreme Response for Combined DLP Design...
Proceedings Papers
Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-429
... condition co-linear condition interaction mooring system offshore subsea system simulation survival draft engineering basin ocean engineering basin hong exp amplitude basin extreme response An Experimental Study on Extreme Responses of a Moored Semi-submersible Rig Jin Ha Kim, Young Shik...
Proceedings Papers
Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-464
...On the Assessment of Extreme Response of Steel Risers André S. Dória Michele A.L. Martins Eduardo Setton S. Silveira Laboratory of Scientific Computing and Visualization, Federal University of Alagoas Maceió, Alagoas, Brazil ABSTRACT Two design criteria used to calculate the extreme response...
Proceedings Papers
Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-298
... angola block 17 offshore joint distribution subsea system artificial intelligence wind sea west africa application extreme response machine learning derivation probability contour distribution model Joint distributions of Wind/Waves/Current in West Africa and derivation of multivariate...
Proceedings Papers
Paper presented at the The Thirteenth International Offshore and Polar Engineering Conference, May 25–30, 2003
Paper Number: ISOPE-I-03-269
... ABSTRACT To standardize and simplify the design process, the designer wave and current loads are developed. The loads enables to calculate the extreme response of offshore structures under the given wave and current conditions by static analysis. Moreover, the intensity of loads can...
Proceedings Papers
Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-325
... ABSTRACT To standardize and simplify the design process of offshore structures, the designer wave load is developed. The load can accurately predict the extreme response of offshore structures by the static analysis under the realistic wave conditions. The designer wave load can be calculated...
Proceedings Papers
Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-047
... ABSTRACT In FPSO design, a rational structural strength assessment is required to ensure necessary integrity throughout planned service life. This paper presents a systematic method to predict extreme response and conduct fatigue assessment for FPSO structural analysis, in which the site...
Proceedings Papers
Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-042
... ABSTRACT For the first phase of this research a six degree of freedom frequency domain model of a Tension Leg Platform (TLP), which includes the effects of non-collinear wind, wave and current, has been developed to determine the extreme response and sensitivities of environmental input...
Proceedings Papers
Paper presented at the The Eighth International Offshore and Polar Engineering Conference, May 24–29, 1998
Paper Number: ISOPE-I-98-032
... on the response and the forces they must withstand. To better understand the wave-induced behavior of this class of MOB, a 5-module, 1500 m structure has been analyzed. wet natural frequency wave angle interaction transfer function equation displacement connector load module extreme response...
Proceedings Papers
Paper presented at the The Eighth International Offshore and Polar Engineering Conference, May 24–29, 1998
Paper Number: ISOPE-I-98-363
... This paper introduces wave directionality into a joint environmental contour description that has been used previously in the study of extreme response behavior for uni-directional random seas. A modified cosine power-spreading model that accounts for the frequency dependence of the various...
Proceedings Papers
Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-416
... offshore environments. Recent statistical work has shown that "true" ocean spectra have as many as four peaks (Borgman 1993). significant wave height winterstein seastate tendon subsea system extreme response simulation environmental contour spectrum tlp tendon reliability estimate...
Proceedings Papers
Paper presented at the The Fifth International Offshore and Polar Engineering Conference, June 11–16, 1995
Paper Number: ISOPE-I-95-094
... ago a Norwegian comparative study between computer programs [1] revealed considerable scatter between the different participating institutions, especially regarding the second order excitation forces, the general response level (e.g. standard deviations) and in particular the extreme response...
Proceedings Papers
Paper presented at the The Second International Offshore and Polar Engineering Conference, June 14–19, 1992
Paper Number: ISOPE-I-92-277
... for stochastic dynamic response analysis based on a finite element model of the gravity platform is outlined. Response maxima in each short-term stationary sea-state are fitted to Weibull three-parameter distributions estimated from simulated response time series. Comparison is made between extreme response...
Proceedings Papers
Paper presented at the The Second International Offshore and Polar Engineering Conference, June 14–19, 1992
Paper Number: ISOPE-I-92-275
... to forces at frequencies outside the range of the wave spectrum. extreme response formula expression offshore structure artificial intelligence ness assumption dynamic model naess sum-frequency response prediction equation procedure gaussian process denote extreme value estimate...
Proceedings Papers
Paper presented at the The Second International Offshore and Polar Engineering Conference, June 14–19, 1992
Paper Number: ISOPE-I-92-038
... to 150 m and harsh environmental climate are therefore now in the development stage. stiffness soil stiffness platform standard deviation wave analysis jack-up platform sensitivity natural period current velocity soil-structure interaction resonant response extreme response axial...
Proceedings Papers
Paper presented at the The Second International Offshore and Polar Engineering Conference, June 14–19, 1992
Paper Number: ISOPE-I-92-127
... ABSTRACT A strategy for estimation of extreme response in flexible risers is proposed. In general, linear response methods cannot be used for extreme response estimation, since flexible risers are exposed to nonlinear drag loading from ocean waves. Hence, the response is generally non-Gaussian...
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