.... An example is presented in which the methodology is implemented in matlab in order to simulate the time-histories of a floating tower with a RNA. design engineering hydrodynamics offshore installations rotors wind turbines Environmental, esthetic, and political pressures continue to push...

.... In the in-house FE code, the modal superposition method is used to calculate the response of the structures to the harmonic time series components of the unit spectrum. Figure 8 illustrates the algorithm of this process. 17 08 2010 12 09 2011 02 02 2012 02 02 2012 design...

... , New York . 28 07 2010 24 02 2011 06 12 2011 06 12 2011 design engineering fatigue finite element analysis impact (mechanical) offshore installations poles and towers structural engineering torsion wind turbines offshore wind turbines lattice towers...

... 12 2011 05 12 2011 buckling compressive strength design engineering elasticity finite element analysis nonlinear differential equations plates (structures) shear modulus ships structural engineering supports torsion elastic large deflection behavior stiffened panels...

... ) 01 04 2010 06 12 2010 13 10 2011 13 10 2011 damping design engineering offshore installations vortices water waves vortext-induced motion (VIM) monocolumn platform spar platform model test In general terms, the VIM phenomenon represents a type of fluid...

... to high V r n ≅ 12 values. This V r n ≅ 12 value had not been obtained in NMRI-2007 tests. 11 12 2009 10 12 2010 12 10 2011 12 10 2011 design engineering offshore installations petroleum industry vortices vortex-induced motion (VIM...

.... The structure is analyzed theoretically and experimentally, and the results are presented here. design engineering fatigue magnetorheology offshore installations shock absorbers structural engineering vibration control magneto-rheological dampers offshore steel jacket platforms structural...

... 08 04 2011 08 04 2011 design engineering genetic algorithms Pareto optimisation ships There are many currently available programs that can be used to analyze a preliminary naval project such as General HydroStatics Software (GHS), NavCad TM (software tool for the prediction...

...% difference is found between Yao’s method and Sun and Wang’s approach, as presented in Fig. 12 . Sketch of mishap section of vessel 4 Moment-curvature response of vessel 4 07 04 2009 07 04 2010 31 03 2011 31 03 2011 beams (structures) design engineering gas...

... . 10.1111/1467-9868.00339 design engineering Fourier analysis maximum likelihood estimation ocean waves oceanographic regions Pareto analysis Poisson distribution storms structural engineering The duration of some offshore activities is limited to a certain period of time. It can...

... though it is the best for the cases used in the optimization. 06 09 2008 02 04 2010 04 11 2010 04 11 2010 design engineering pipelines pipes simulated annealing steel Deepwater oil exploitation poses great challenges for riser systems design due to the tight...

... in, for example, a tether of a tension leg platform, as a fatigue crack growing in a pile weld will probably stop when it has grown out of the residual tensile stress field. 20 09 2008 16 12 2009 23 09 2010 23 09 2010 butt welding design engineering fatigue foundations...

.... For the design, estimates from the design curves must be adjusted to properly reflect the design exposure. 20 01 2009 26 06 2009 17 06 2010 17 06 2010 data analysis design engineering ice offshore installations sea ice structural engineering probabilistic methods ice load...

... , I. J. , Taylor , R. , and Reid , S. , 2007 , “ Fracture, Probabilistic Averaging and the Scale Effect in Ice-Structure Interaction ,” Proceedings of the POAC ‘07 , Vol. 1 , pp. 296 – 304 . 20 01 2009 29 06 2009 17 03 2010 17 03 2010 design engineering...

... , “ Field Installation and Pullout Test of Embedded Suction Anchors ,” Transp. Res. Rec. 0361-1981 , 1936 , pp. 117 – 123 . 10.3141/1936-14 anchors concrete design engineering flanges foundations marine engineering offshore installations steel suction pile embedded suction anchor...

... repetitive FEAs. Several numerical applications on a simple plate and an offshore tower are used to verify the effectiveness of the LEAP algorithm for stress redesign. Plate redesign elements 04 09 2007 19 05 2009 22 12 2009 22 12 2009 design engineering finite element...

... and temporally. Another challenge for tidal turbines is the susceptibility to fluid cavitation, which can cause undesirable effects such as performance decay, blade surface erosion, noise, and resonant vibration. blades boundary layers boundary-elements methods cavitation design engineering finite...

... shear in the fillet weld. 15 08 2008 19 12 2008 04 09 2009 code standards design engineering fatigue offshore installations stress-strain relations welds fatigue load carrying fillet welds combined loading design standard offshore structures The work...

... design engineering finite element analysis impact (mechanical) marine vehicles standards structural engineering ship collision FPSO supply vessel accidental limit state patch loading plastic method strength design explicit nonlinear finite element method Supply vessels, passing...

... structural reliability optimal design offshore platform ice load design engineering failure analysis fatigue life cycle costing offshore installations reliability vibrations In the current code-based design of offshore platforms, the seismic load, waves, sea current, wind, and ice load...