... internal flow velocity riser vibration response frequency reservoir surveillance amplitude mode transition vibration response production monitoring flexible riser frequency fluid struct displacement rms response amplitude velocity increase upstream oil & gas production...

... production logging reservoir surveillance reservoir simulation upstream oil & gas production monitoring amplitude subsea system tension leg production control flow angle profile flow response amplitude characteristic model test motion response incoming flow angle numerical...

... of reduced velocity from 6 to 30. The maximum transverse response amplitude of the platform reaches 0.94 times the column diameter. Drag force increases significantly at high reduced velocity of 30, possibly due to an increase in transverse response frequency. Interactions between vortices shed from upstream...

... wave frequency surge motion response amplitude configuration wave condition heave motion time series chain weight interaction wave period clumpweight amplitude renewable energy wave energy converter midline float frequency time window Influence of Mooring Components on the Wave...

... up and commission (Chen et al., 2008). compensation measure upstream oil & gas column diameter subsea system offshore mechanics multiple small column floating production system response amplitude fpso motion response hydrodynamic performance msc semi platform heave plate...

..., U is the free-stream velocity, and μ is the dynamic viscosity coefficient. experimental measurement prediction regime vortex-induced vibration cylinder hydrodynamic force algorithm viv vortex-excited frequency response amplitude amplitude oscillation equation frequency...

... and risers exposed to ocean currents. current profile vibration umbilical arc length amplitude curvature case study scenario maximum potential energy response amplitude hysteresis screening method upstream oil & gas mode number slip curvature contribution stick-slip hysteresis...

... number. torsion correspond frequency spectra inertia ratio vibration vortex-induced vibration reynolds number cylinder transverse rotational transverse frequency amplitude problem parameter response amplitude square cylinder frequency argand diagram Transverse and Rotational...

... Abstract A wind tunnel experiments on the suppression of vortex-induced vibration for large mass-damping-parameter (m*ζ=1.415) cylinders attached with fairings is investigated. For the bare cylinder, the nondimensional response amplitude is far less than the low massdamping cases...

... response amplitude single equivalent regular wave approach regular wave approach spectral model upstream oil & gas floating production system fpso simulation frequency procedure regular wave freedom irregular seastate Generation of Multiple Equivalent Regular Waves for Preliminary...

... cylinder response amplitude excitationnote gopalkrishnan ocean engineering vivana engineering roughness coefficient excitation coefficient upstream oil & gas raghavan VIV Prediction of Steel Catenary Riser A Reynolds 1umber Sensitivity Study Decao Yin1, Jie Wu1, Halvor Lie1, Rolf J...

... response amplitudes and frequencies including effects from all participating modes riser viv upstream oil & gas interaction synchronization response amplitude amplitude cd 0 vortex natural frequency vibration self-limiting nature coefficient inline motion motion amplitude cylinder...

... Abstract With the application of numerical simulation, response amplitude operation of the vessel could be obtained. Applying the calculated results, the 1/3-highest values of the vessel could be obtained with using variable step Legendre-Gauss integral method. At the same time, the calculated...

... direction and its amplitude is strongly dependent not only on the current directions but also on the reduced velocity U r regularly. The lock-in range is defined as 6 U r <8 according to response amplitudes and frequencies. In order to better understand the mechanics of this phenomenon, the numerical...

... performance risk acceptable performance response level newman interaction international offshore response amplitude amplitude wave frequency hydrodynamic analysis quantification risk level variation subsea system diamantoulaki correspond Risk in Performance of a Free Floating Structure...

... ABSTRACT The more practical case of vortex-induced vibration in two degrees of freedom has been presented. The mass ratio is low and equal to m*=1.78. The response amplitude showed three branches namely, the initial branch, the super-upper branch and the lower branch. The reason...

... device is influenced by the diffracted and radiated wave fields due to the other devices. wave energy device response amplitude interaction displacement torque ocean energy ks 1 friction amplitude configuration mciver clutch renewable energy interaction factor cylinder inertia...

... are on order including 26 FPSOs, two TLPs, four production semi-submersibles and five production spars as well as five floating storage units (RINA, 2004). design evaluation gva 4000 equation wave height diffraction technique incecik sedco 700 motion response faltinsen response amplitude...

... excitation wave, and retaining the water depth, then, varying excitation wave frequency from 0.42Hz to 0.77Hz, a series of points of maximum structural response amplitude versus excitation wave frequency are measured. The purpose of this test is to investigate the effect of excitation wave frequency...

... to the riser riser numerical test equation experimental test catenary riser frequency mode shape vortice procedure modal amplitude cylinder numerical prediction numerical result steel catenary riser upstream oil & gas prediction amplitude response amplitude vortex-induced...