... of level ice using Azimuthing propeller jet in bollard condition, by means of full-scale and model scale experiments. Moreover channel widening and heeling test is performed to analyze the escorting ability of an icebreaker with only using propeller jets. Scope of the current investigation can...

... Abstract Numerous field studies show that mature first-year (FY) ridges consist of a solid ice consolidated layer (CL) below which is a keel of ice rubble. The CL is generally thicker than the ambient level ice. With the decrease in multi-year ice in the Arctic, FY ridges may become...

... ship icebreaker ice load measurement system azipod unit ice trial icebreaker polaris ice condition polaris propulsion system operation ib polaris offshore technology conference bearing level ice ice load References References Hovilainen , M. , 2014 . Next Generation Baltic...

... to 1.5 meters of level ice. Results of the performed tests demonstrated the Vessels design exceed the minimum required performance. Furthermore, in close cooperation with DNV-GL the Vessels obtained Polar Class 3 (PC-3) approval. In addition, two special studies were done by DNV-GL and the CNIIMF...

.... generator propulsion freight & logistics services propulsion technology propeller pitch propeller offshore technology conference level ice lng propulsion solution liquified natural gas lunni tanker operation icebreaker arrangement azipod mt lunni gas monetization finland ice...

... will improve the understanding of the transferability from model to full scale data. full scale trial marine transportation time series torque strength ice thickness inertia ice trial prediction interaction technology conference level ice resistance model test flexural strength ice...

... designs, one with triple shaft propulsion system and the other with one centre shaft and two wing podded propulsors. The present paper describes only the results for the model with triple shaft propulsion system. test result model test open water test level ice drillstring design us government...

... Abstract Wind turbine towers are being planned in ice covered regions subject to pressure ridges (e.g. the Great Lakes). Conical collars are often employed to reduce ice loads from level ice and their associated dynamics. For level ice, downward breaking cones have some advantages...

... Abstract Multi-year (MY) ridge and level ice interactions with sloping and conical structures involve complex ice feature shapes and ice failure mechanisms. The limited available field data makes calibration of associated load models difficult. To account for associated randomness...

... thruster upstream oil & gas science mission floe ice trial science operation scientist ice condition operation operational capability level ice deployment research vessel icebreaker References References University-National Oceanographic Laboratory System (UNOLS) Website...

... trial baltika level ice gulf gas monetization liquified natural gas icebreaker ice thickness ice trial flexural strength thick level ice ocean energy References References Arpiainen , M , Bäckström , M , Suojanen , R-A. 1999 . Revolutionary Oblique Icebreaker . 15th...

... and propulsion development are discussed. icebreaker manhattan propulsion tanker variation test result model test ship resistance ice model test subsea system hull form laboratory level ice mt manhattan wilkman upstream oil & gas operation risk management bow form technology...

... of this paper is to present the analytical model components and their implementation in SILS, and to demonstrate the influence of the changes by means of a scenario wherein a vertical sided structure encounters multi-year level ice and ridges. probability breakout force ramp-up probabilistic assessment...

... to their application for various ice scenarios. Alternatives how to design the model test set-up in order to measure the ice forces independently from the system response forces of moored floating structures will also be discussed. ice condition proceedings level ice carriage stiffness otc 24565 main...

.... In uniform level ice it could be a speed and ice thickness. During the last 40 + years the full-scale onboard vessel tests by Aker Arctic and its predecessors; namely W& ärtsil& ä Ice Model Basin (WIMB), W& ärtsil& ä Arctic Research Centre (WARC) and Masa-Yards Arctic Research Centre (MARC...

... and specialist ice load advice (Ken Croasdale) where necessary. The CPM has been shown to be feasible in the Alaskan Sea for the two ice conditions considered, 6m thick level ice and a very rare 25m thick ice island event. The ice island event represents a very conservative scenario and further data may allow...

... on the operational matters. international conference arctic engineering simulation numerical simulation basin test kerkeni otc 24652 level ice metrikin main carriage haase ocean jochmann dynamic positioning setup ice condition carriage offshore upstream oil & gas OTC 24652 DYPIC...

... to simulate the complex scenario of a moored floating structure interacting with drifting intact level ice and ridges. It is also per today the main source of experience for the design of such structures as full scale experience is sparse. However, ice basin testing suffers from deviations due to scaling...

.... Introducing a GPU platform enables a substantial increase in the number of elements characterized so that the interaction of multi-legs and ice can be modeled with greater efficiency. For example, level ice modeled with 3-D bonded spherical elements can address the buoyancy, current effects and drag force...

... possibilities of the oblique ship concept. maneuverability asymmetric hull form wave height azimuth thruster icebreaker gulf propulsion unit level ice chemical spill ship aker arc 100 hull form marine transportation merchant ship oblique icebreaker operation upstream oil & gas...