... warming. Some analyses suggest that the Arctic could be ice-free within a few decades (Wang and Overland, 2009; Boe et al., 2009). When a ship operates in the marginal ice zone (MIZ), or sails following an icebreaker, the ship is exposed to collision from ice floes of various sizes, which slow the ship...

... ABSTRACT Escorting merchant ships sometimes requires icebreakers to widen channels in ice-covered waters. To better understand the icebreaker's channel widening capability, this paper presents full-scale tests of the Icebreaker (IB) Polaris in the Bay of Bothnia during 2021 and analyses...

... abilities. Because Air-cushion Ice-breaking/Transportation platform is carried by icebreakers, usually icebreakers have a crane, which is controlled by a crane operator to conduct launch and recovery air cushion vehicle(ACV). A payload connected to the crane hook and hanging on the cable usually is modelled...

... ABSTRACT The icebreaker escort operations are typical navigation models in Arctic shipping. The current studies mainly focus on analyzing and quantifying the ship navigation risk for icebreaker escort operations concerning ship-to-ship collision avoidance. However, scenarios of ship stuck...

... ABSTRACT Ensuring of year-round export of hydrocarbons and other cargoes through the Eastern sector of The Northern Sea Route (NSR) is one of the urgent tasks of modern Arctic shipping. The implementation of such projects necessitates using large-capacity icebreaking gas carriers (LNG...

... evolutionary algorithm ground transportation machine learning optimization problem efficiency passenger transportation open water region water region resistance artificial intelligence polar icebreaker battery module coefficient diesel battery hep engine icebreaker pareto...

... of the Interaction between Icebreaker and Level Ice with Different Flexural Strength Zhe Chen1,2,3, Yanping He1,2,3*, Yupei Ren1,2,3 and Yadong Liu1,2,3 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University 2. School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong...

... regions by large tankers. The use of azimuth thrusters on ice ships and icebreakers significantly determines their operational efficiency and design solutions for the structure of the transport system (type and number of ships and icebreakers) and organization of its work. As an example, Yamal-1 project...

... haven satellite communication harbor icebreaker transport route arctic ice cover requirement oil spill contingency planning ice class mitigating measure university solberg northern sea route arctic transportation ice cover Challenges and Opportunities for Arctic Transportation caused...

... the specific resistance value. The numerical simulation method can reflect the damage and deformation of ice and the change of resistance in the middle of the ship at any time. It is an important means to study the ice interaction of ships. ship mass force hull icebreaker ice particle resistance...

... ABSTRACT In the study presented in this paper, the problem of quantifying the performance of icebreaker operations within ice management (IM) has been targeted, using the capabilities of high-fidelity simulations by a discrete element simulation model. An accurate geometric and dynamic model...

... ABSTRACT This paper describes the hull form optimization method of an icebreaker. The objective function is resistance in ice which is calculated by ICHM (Ice-Covered Hull Model) we developed. A genetic algorithm is adopted as the numerical optimizer. We optimize a hull form which has the same...

... frequency marine transportation ship criteria sea state hull navigation calculation amplitude sea condition strip theory severe discomfort boundary icebreaker wave direction motion response wave frequency density function wave force vertical acceleration encounter frequency...

.... midstream oil & gas liquefaction plant liquified natural gas construction quay ice management operation gas monetization ice condition sabetta ship condensate module carrier brash ice lng carrier icebreaker freight & logistics services lng project access channel jetty port...

.... INTRODUCTION For typical icebreaker shaped vessels with an inclined bow and low flare angles the major components of the hull-ice interaction process are quite well understood. Analytical methods exist to predict the average resistance based on few inputs for the hull shape characteristic and ice properties...

... designed icebreaker in the Ice Engineering Laboratory of Tianjin University. It is found that the presence of snow cover influences the ice cusp pattern and increases the ice resistance. The measured results are compared with the experimental estimation of Lindqvist method. Some important discussions...

... capacity. During expeditions for ice mechanics study organized in the Kara and Laptev seas in 2014–2015 two types of large-scale experiments were carried out in order to estimate the atomic icebreaker "Yamal" (Russia) breaking effect on ice formations and to evaluate the integral physical and mechanical...

... ABSTRACT The paper presents results of experimental iceberg towing operations performed in ice fields during the early stages of ice formation. Experiments were conducted in October 2017 in the area of Franz Josef Land with the diesel icebreaker "Novorossiysk" as a part of the "Kara-Summer...

... Silva et al. (2015), and Montewka et al. (2015). ice pressure terry fox berge atlantic mv berge gulf ridge thickness open water coastline lawrence captain david fowler ridge concentration vicinity icebreaker ice condition concentration simulation thickness courtesy captain david...

... ABSTRACT An improved numerical method for calculation of icebreaking force is proposed in this paper. First, the dynamic bending failure criterion is introduced considering the loading rate, which is of great significance to the icebreaking process. The parametric expression...