... Abstract The stationkeeping performance prediction of a Dynamic Positioning (DP) vessel greatly depends on the accurate modelling of the ice forces, which in turn depends on managed ice field characteristics (ice concentration, floe thickness, floe size, ice drift speed and direction...

... Abstract The thickened width of floating ice roads has tended to be a practical consideration rather than a design aspect. Standard methods of calculating the required thickness of ice roads consider the road to be of infinite length and width. In this paper we outline calculations...

... oil and gas, shipping, renewable energy, and public works projects in ice prone Arctic and Sub-Arctic regions. reservoir surveillance afpb apparatus thickness measurement ice condition shear strength ice block confinement frame strength value ice sample strength upstream oil & gas...

...-Arctic. Important components of a ridge creating ice loads are the consolidated layer at the surface (which is considered as solid ice) and the ridge keel below consisting of ice rubble, but much thicker. The load due to the consolidated layer is usually derived as if it is thick level ice. On a cone...

... in pack ice. ice condition pack ice th concentration floe size scenario mooring system ice pressure floe thickness floe impact kulluk small floe grand bank wright dataset upstream oil & gas interaction ice load clearing concentration ice interaction subsea system modeling...

... and repeated loadings, with thermal resistance comparisons, leads to additional understanding of rigid foam as an engineering material. compressive strength foam rigid foam moisture absorption thickness ultimate compressive strength thermal conductivity technology conference embankment...

... transportation limitation canada ship concentration requirement regulation fpso artificial intelligence operational limitation polaris ice type russian federation transport canada ice condition thickness floating production system subsea system guidance ice thickness imo ice class platform...

.... upstream oil & gas iso 19906 thickness keel upward bridge strength ridge load ice rubble subsea system flexural strength fy ridge keel depth confederation bridge correlation vertical structure rubble consolidated layer croasdale level ice interaction ridge interaction...

... thickness, while small blocks had 9cm width and 2.0cm thickness. The length of the blocks was determined by its natural breaking length during the ridge building process. Regular blocks were created using the regularly spaced ice knives on HSVA's carriage. Irregular blocks were created by wavy irregular saw...

...OTC-27361-MS A Shipborne Measurement System to Acquire Sea Ice Thickness and Concentration at Engineering Scale Wenjun Lu, Qin Zhang, Raed Lubbad, Sveinung Løset, and Roger Skjetne, Norwegian University of Science and Technology Copyright 2016, Offshore Technology Conference This paper was prepared...

... Bridge, other experience and new ideas. During the study, over 50 ice interaction events at Confederation Bridge were chosen as geometrically similar to thick ice acting on an Arctic structure. The interaction process and relevant parameters (such as ride-up height) were documented in detail...

... Beaufort Sea is examined. The critical values of ice pressure and ridge thickness that posed a threat to vessels during that event were found compatible with estimates corresponding to besetting events in the Gulf of St. Lawrence and Frobisher Bay. forecast ridge thickness ice compression...

... load level ice load upstream oil & gas sensitivity case thickness load model croasdale sea ice load ridge length base case scenario probabilistic assessment level ice interaction year load reserves evaluation iso 19906 formulation scenario hinge break ridge model ridge thickness...

... from the centre to the southern end of the bay. One of the regional 2-D refraction transects revealed a thick sedimentary package overlying oceanic crust along most of the profile, despite a lack of clear magnetic anomalies within Baffin Bay. To extrapolate the 2-D seismic refraction results offline...

... Abstract In ice frequented regions, the potential for large ice floes and extreme ice features encroaching on offshore structures can be significant. An early warning system is desired to discriminate between thin ice of no risk and thick ice with significant challenge. The severity...

... icing. kv nordkapp modeling ship droplet temperature velocity distribution shipice air temperature operation thickness time interval droplet computation reservoir simulation upstream oil & gas shipice model ice rate equation droplet size starboard side atlantic kingfisher...

... and sensitivities are provided. clearing load technology conference cone strength long ridge hinge piece length hinge beam croasdale level ice clearing load multi-year ridge thickness hinge crack equation upward interaction conical structure calculation Croasdale , K.R. , 1975...

... characteristics (floe size, floe thickness, inclusion of brash ice and small ice pieces, ice drift speed and direction) and DP system (gain set-ups). Over the years, many engineers have been using numerical and experimental tools to assess the effect of these parameters. More recently, a comprehensive series...

...-21) reprinted here as: (1) (2) where CR is an ice strength coefficient, h is ice thickness (m), h* is a reference thickness of 1 m to keep units consistent, ws is structure width (m), and n and m are empirical coefficients. The values n = 0.5 + 0.2h (for h < 1 m) or n = 0.3 (for h > 1 m) and m...

... lifeboat hull laminate. Next, three new laminates (of varying thickness and layup) were numerically modeled with the intent to investigate the effects of layup and laminate thickness on resistance to fracture. Ice loads for this study were estimated based on a probabilistic analysis of load panel...