... The paper describes a GPU-based event mechanics (GEM) model of the action of managed pack ice on a floating offshore structure. The ice cover is represented by a large number of discrete polygonal ice floes, of varying thickness. Each ice-structure contact is modeled, as is every ice-ice contact...

... and sloping structures. ISO 19906 indicates that consideration should be given to limit stresses at the ice structure interface based on the dominating ice failure mechanisms, limit forces associated with the available driving force that can act on the interacting ice floe due to wind, currents...

... and deformations of the ice cover. The drillship is modeled as rigid body of three degrees-of-freedom: surge, sway and yaw. A Base Case examines a managed ice cover consisting of floes with sizes ranging from 20 m to 50 m, and a uniform ice thickness of 1 m. The ice cover moves at 0.3 m/s along the surge direction...

... evaluated different aspects of ice management support for floating drilling operations. knowledge management upstream oil & gas icetech14-117-rf hamilton page number floe drift speed disconnection operation ice feature satellite image myi inclusion ice drift icebreaker ice management...

... This paper presents updated distributions of the temperatures, salinities and borehole strengths of old ice, as a function of time of year. Thousands of measurements are compiled from old ice floes across the Arctic. Probability of exceedance curves are used to show the more ‘extreme’ values...

.... Depth-averaged simulations consider larger zones of the ice cover to examine a range of conditions that were observed during the past operation of the Kulluk in the Beaufort Sea. The simulations evaluate the effects of managed ice cover characteristics such as floe sizes and confinement. Predicted...

... floes is modeled. A simple vessel is modeled as it navigates through the domains. Each ship-ice collision is modeled, as is every ice-ice contact. Time histories of resistance, speed and position are presented along with the parametric sensitivities. The results are compared to published data from...

.... upstream oil & gas icetech12-111-rf turnbull page number red line ice drift result ship floe amundsen forecast wind ocean current utc wind forecast ice drift drag coefficient ice floe voyage gradient floe 9 forecast Beaufort Sea Ice Drift Forecasting On-Board the CCGS Amundsen Ian D...

... of variables that can be altered by IM operations such as floe size, ice confinement and ice pressure. The results provide means for quantifying the benefits from icebreaking operations, which is a needed input for the design and optimization of IM systems. Ongoing work employs related techniques to determine...

... This paper investigates the interaction of a managed ice floe with a downward breaking conical structure. The floe considered has width on the order of the structure’s waterline diameter. The investigation was motivated by the authors’ observations that peak loads in managed ice interaction...

... component dynamic stress floe ice pack thermal stress compressive stress stress buoy ice stress spectra ice surface temperature time series ice deformation sea ice deformation divergence deformation On the Spatial and Temporal Characterization of Motion Induced Sea Ice Internal Stress...

... The impact of a large ice floe with the Molikpaq on May 12, 1986 resulted in some of the highest measured loads on this offshore structure. Video data from the event have been studied to produce refined estimates of ice thickness, rubble height and rubble extent. Ice load estimates are made...

.... For these reasons, the need for frequently updated information (ice edge, icebergs, and ice floes, wind and wave conditions) has increased. This paper presents the role satellite images can play in supporting human activity in the Arctic. real time system icetech10-126-rf hall page number ship platform...

... topics of interest to the offshore industry. subsea system artificial intelligence upstream oil & gas floe imagery sonar mapping experiment vehicle fast ice auv morphology application geophy sonar data ice draft underside three-dimensional mapping sea ice ice underside...

... are meant to supplement, and help interpret, observations from ships, offshore platforms, aerial reconnaissance and satellite imagery. first-year ice multi-year ice johnston ship thickness floe information multi-year floe old ice nare strait arctic old ice floe identifying old ice second...

... On February 13, 2007, the Confederation Bridge piers experienced a sustained ice jam leading to a limit-driving force event. The objective of this paper is to analyze this limit force event and explain the processes involved. engineering floe february 13 ice load drag force...

... or vessels in ice covered waters. The ISL design combines novel hull shape features that helps escape from converging, high freeboard ice floes, with an ice-strengthened composite shell that resists the ice loads. No existing TEMPSC has solutions addressing these issues. subsea system upstream oil...

.... These works include a wide range of icestructure and ice-ship interaction problems of current interest, i.e., ice loads on conical structures, jamming of floes at bridge piers, modeling of the mechanical behavior of ice rubble, pack ice stability and associated forces on offshore structures, rubble loads...

... resistance floe institute floe diameter lifeboat ocean technology resistance test coefficient pack ice drag coefficient ice floe numerical model canada Performance of Survival Craft in Ice Environments Michael Lau Institute for Ocean Technology, National Research Council of Canada St. John s...

... was different for the three hull forms, performance in ice was broadly similar. Ice concentrations of about 6/10ths to 7/10ths were found to be limiting conditions for all three. Larger floes were found to hinder performance more than smaller floes. Increasing power did not significantly improve performance...