... scallop formation experimental investigation average temperature ice block interface rectangular ice block flume experiment rectangular block thermocouple temperature profile iceberg ice surface mechanism ice sample ice scallop ABSTRACT Floating glacial ice features...

... ABSTRACT The article considers different relations between the morphometric parameters (sail height, keel depth, cross-sectional area) of ice ridges studied during 2013-2015 and 2017 ice works in the Kara, Laptev and East Siberian Seas. Size of ice blocks that compose these ridges...

... resultant force ice block ice load wang reservoir characterization strut load case 1 contact area upstream oil & gas azimuth propulsor strength propeller simulation sea ice impact speed ice-pod interaction analysis ice impact ABSTRACT Azimuth propulsors are widely...

... ABSTRACT In this paper, the numerical model of ice is established based on nonlinear finite method, and the process of damage is simulated by means of the computational cohesive element model. The gravity, buoyancy and drag force are added to the motion equations of ice blocks to establish...

... proposes an algorithm for calculating the circumferential crack parameters by using YOLACT network, which is a kind of computer vision method. Ice blocks shown in images are identified through the YOLACT network to generate mask. Then Gaussian blur and Canny operator are applied to detect the edge...

... formations. The final stage includes the development of models of ice breakage by the elements of azimuth thrusters; design schemes for determining contact ice pressures and global ice loads as well as their verification. strut azimuth thruster ice block contact zone interaction strength formula...

... are important parameters in the calculations. The broken ice from ice sheet will accumulate around the legs and contributes a non-negligible part of ice load on structure. This force is also affected by parameters mentioned above. floating production system simulation ice block column 2 motion...

... Influence of Water on Collisions of Floating Ice Blocks Aleksey Marchenko1, Vladimir Markov2, Rocky Taylor3 1Arctic Technology, The University Centre in Svalbard, Longyearbyen, Norway 2Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia 3Memorial University Newfoundland, St...

...) proposed a new material model to describing the orthotropic rate-dependent properties of sea ice, focusing on propeller-ice interaction. reservoir simulation propeller ice block ice load time series propeller strength deformation ice milling condition numerical calculation contact force...

... instrument drilling result level ice laser keel oikkonen ice block information ice formation dimension ice ridge 2 ice ridge void Fast methods for measuring ice ridges in full-scale Teemu Heinonen Testing & Research, Aker Arctic Technology Inc Helsinki, Finland Annu Oikkonen Marine Research...

... of destructible blocks of ice with ratio values of the strength of its cubic samples and the compressive stress in the ice block which causing the ice failure. calculation hydraulic fracturing fracture field edge compression horizontal crack shaft experiment tsuprik truncated pyramid cylindrical...

..., is Kronecker's delta, is the density and is the volume fraction. The interphase momentum transport term is presented by the drag force (CD-Adapco, 2006) applied to a unit volume of mixture: , , 3 ( )dD d D c d cc e i F F df u u V = , (4) where d is the mean size of an ice block and Vi...

... from ice at an indentation a rigid body into it. The results of experimental studies are reduced, which one have affirmed a hypothesis about cyclic nature of the failure process of ice block on interface. It was shown, that the magnitude can be considered as constant magnitude for sea ice and can...

... properties of artificially grown modeling ice under various conditions of its fabrication in ice laboratory. In order to achieve this purpose, the authors solve the following tasks in the paper: – development of a technique and technology of fabrication of modeling ice blocks; – experimental research...

... and keel characteristics (sail length, width and height; keel length, width and draft; sail and keel sloping angles, sail/keel ratio); - Size of ice blocks comprising ice ridges (thickness, length and width); - In addition, the internal structure of ice ridges was investigated (consolidated layer size...

... standard deviation thickness baltic sea hummock keel porosity consolidated layer stamukha solid ice section okhotsk sea characteristic internal structure ice block void section variation first-year hummock Proceedings of the Eleventh (2001) International Offshore and Polar...

... possibilities in obtaining data on internal structure of hummocks. Ice hummocks are known to have heterogeneous vertical structure. Brash ice which forms due to hummocking by gravity and buoyancy moves towards the center of a hummock and fills voids between ice blocks. Therefore, porosity for middle part...

... includes coastal barrier(i.e. ice area up to the first tide crack) and intermediate area laying between tide cracks. Ice cover in the intermediate area is cracked and consists of separate ice blocks interacting with each other and shorefast bottom. Incidentally the power part of interaction is transfered...

... a controlled block size distribution. The size distribution for the ice blocks was selected to correspond published data on full-scale ice ridges. The measured mean values of shear strength varied from I kPa to 17 kPa depending on the freezing conditions. INTRODUCTION The internal properties of ice ridges...

..., the hydrodynamic non-contact load, as well as the mean open water hydrodynamic load. Hydrodynamic non-contact propeller loads can be described as the loads generated on the propeller blades due to changes in the hydrodynamic conditions caused by the proximity of an ice block. An experimental investigation...