Academic literature on the topic 'Icebreaking capability'

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Journal articles on the topic "Icebreaking capability"

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Zhou, Li, Feng Diao, Ming Song, Yue Han, and Shifeng Ding. "Calculation Methods of Icebreaking Capability for a Double-Acting Polar Ship." Journal of Marine Science and Engineering 8, no. 3 (2020): 179. http://dx.doi.org/10.3390/jmse8030179.

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As a key parameter, icebreaking capability is often used to judge whether a polar ship could navigate in level ice at a certain speed. This paper presents two methods to calculate icebreaking capability. The first one is a static method based on the estimation of ice resistance under different ice thicknesses and ship speeds. The second is a dynamic method that involves solving the equation of motion. A series of model tests with a double-acting icebreaking tanker were also carried out in the ice basin of the Krylov State Research Center to measure ice resistances. The simulated ice resistance
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Schwarz, J. "Some Latest Developments in Icebreaker Technology." Journal of Energy Resources Technology 108, no. 2 (1986): 161–67. http://dx.doi.org/10.1115/1.3231256.

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Icebreaking technology has been improved over the last 10–15 yr so that the installed power of icebreaking ships could be drastically reduced. The improvement is demonstrated on four examples of icebreaking ships, one conventional and three advanced concepts, which have shown their icebreaking ability already in full scale. The icebreaking capability of ships is suggested to be evaluated through model tests, theoretical approach and by full-scale measurements. The evaluation should be carried out for various ice conditions by resistance and self-propulsion tests. Finally, some thoughts are pre
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Gang, Xuhao, Yukui Tian, Chaoge Yu, Ying Kou, and Weihang Zhao. "Experimental Investigation on IceBreaking Resistance and Ice Load Distribution for Comparison of Icebreaker Bows." Journal of Marine Science and Engineering 13, no. 6 (2025): 1190. https://doi.org/10.3390/jmse13061190.

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During icebreaker navigation in ice-covered waters, icebreaking resistance and dynamic ice loads acting on the bow critically determine the vessel’s icebreaking performance. Quantitative characterization of the icebreaking resistance behavior and ice load distribution on the bow is essential for elucidating ship-ice interaction mechanisms, assessing icebreaking capability, and optimizing structural design. This study conducted comparative icebreaking tests on two icebreaker bow models with distinct geometries in the small ice model basin of China Ship Scientific Research Center (CSSRC SIMB). S
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Ko, Donghyeong, Kyung-Duk Park, and Kyoungsoo Ahn. "Time domain simulation for icebreaking and turning capability of bow-first icebreaking models in level ice." International Journal of Naval Architecture and Ocean Engineering 8, no. 3 (2016): 228–34. http://dx.doi.org/10.1016/j.ijnaoe.2016.02.004.

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Goldstein, R. V., and N. M. Osipenko. "Fracture Mechanics in Modeling of Icebreaking Capability of Ships." Journal of Cold Regions Engineering 7, no. 2 (1993): 33–44. http://dx.doi.org/10.1061/(asce)0887-381x(1993)7:2(33).

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Kulkarni, Ketki, Pentti Kujala, Mashrura Musharraf, and Ilari Rainio. "Simulation Tool for Winter Navigation Decision Support in the Baltic Sea." Applied Sciences 12, no. 15 (2022): 7568. http://dx.doi.org/10.3390/app12157568.

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This article presents a novel simulation tool for the analysis of winter navigation operations in the Baltic Sea in the context of the Finnish–Swedish Winter Navigation System (FSWNS). The aim of the tool is to simulate the performance of the FSWNS under various potential future operating scenarios and thereby support decision making in matters affecting the operation and development of the FSWNS, for instance, in terms of icebreaking resources and ice class regulations. To this end, the tool considers key performance factors and characteristics of the FSWNS, such as the prevailing ice conditi
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Abramov, Aleksei, and Mikhail Zagorodnikov. "Organization of Icebreaking Conducting of Transport Courts." Administrative Consulting, no. 10 (June 7, 2017): 111–17. https://doi.org/10.22394/1726-1139-2017-10-111-117.

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Hinchey, M. J. "Propagation of a Hovercraft Air Cavity Under a Floating Ice Sheet." Journal of Offshore Mechanics and Arctic Engineering 111, no. 2 (1989): 149–54. http://dx.doi.org/10.1115/1.3257089.

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An ACIB is an air cushion device being developed in Canada for icebreaking purposes. When mated with the bow of a tugboat, the ACIB currently operational can break ice sheets about 1 m thick. During ACIB operations, the water surface directly beneath the craft is sometimes depressed below the lower edge of the ice sheet, and an air cavity is formed under the sheet. This air cavity is known to have a significant effect on the icebreaking capability of the ACIB. In a study for Transport Canada, DeHavilland Aircraft of Canada used underwater explosion theory to model its propagation. This paper s
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Zagorodnikov, Mikhail. "Icebreaking Ensuring Year-Round Regular Navigation on Routes of the Northen Sea Route." Administrative Consulting, no. 9 (June 7, 2017): 149–56. https://doi.org/10.22394/1726-1139-2017-9-149-156.

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For ensuring year-roundregular navigation on routes NSR innovative ice breakers with the increased icebreaking capability and speed of the movement in an ice field of a certain thickness are under construction and designed. The increase in functional characteristics of ice breakers led to increase of cost of their construction. In article the method of distribution of ice breakers on routes NSR allowing with maximum to use efficiency their functional characteristics is considered.
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Barr, William. "Shturman Albanov: a new Russian icebreaking tanker." Polar Record 53, no. 1 (2016): 100–101. http://dx.doi.org/10.1017/s0032247416000590.

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On 26 October 2015 the keel was laid for a remarkable new tanker at the Samsung Heavy Industries Shipyard, in Geoje, South Korea, the order having been placed by Sovcomflot, which operates the largest tanker fleet in Russia (Unicom Management Services (Cyprus) Ltd. 2015). The vessel was launched on 20 February 1916 and was named Shturman Albanov (Fig. 1). It is a shallow-draft icebreaking tanker of 42000 dwt (Unicom Management Services (Cyprus) Ltd. 2016) with a length of 249 m and the unusually large breadth for its tonnage, of 34 m, and a loaded draft of 9.5 m. Its ice-class is Arc7. Propell
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Conference papers on the topic "Icebreaking capability"

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Sheinberg, Rubin, Christopher Cleary, Peter V. Minnick, and Adam R. Ashley. "U.S. Coast Guard Great Lakes Icebreaker Replacement." In SNAME Maritime Convention. SNAME, 2005. http://dx.doi.org/10.5957/smc-2005-d03.

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The United States Coast Guard (USCG) Great Lakes Icebreaking Capability Replacement Project (GLIB) is a major acquisition program chartered to maintain heavy icebreaking on the Great Lakes. The state-of-the-art icebreaker being constructed under this program will replace the USCGC MACKINAW (WAGB 83), which has provided 60 years of continuous service to the region. The new multi-purpose vessel will provide heavy icebreaking services and maintain floating Aids-to-Navigation (AtoN) on the Great Lakes. In addition, the vessel will have secondary mission objectives of search and rescue, marine envi
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Hanninen, Samuli, Matko Barisic, Torsten Heideman, Krzysztof Goldon, Sampo Viherialehto, and Pirjo Maattanen. "Propulsion Solution for Icebreaking LNG Carriers." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31212-ms.

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Abstract Since 2007 the traffic volumes in the arctic seas have substantially increased, especially in the North-East Passage following the development of major oil and gas projects. In development of icebreaking LNG tankers the selection of propulsion system is playing a major role determining the vessel performance, safety and icebreaking capability. Recent success of YAMAL LNG project has led to accelerated development of new arctic LNG projects, such as Arctic LNG2. This paper will introduce some outstanding operational results from the revolutionary icebreaking LNG Carriers with modern az
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Lee, Chun-Ju Lee, Seong-Rak Cho, Seong-Yeob Jeong, and Eun-Jee Chun. "MOERI’s Ice Model Test for Korean Icebreaking Research Vessel." In SNAME 9th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2010. http://dx.doi.org/10.5957/icetech-2010-147.

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In the near future, the number of ice-going breakers operating in the northern sea route will be increased, as potential international trade between the North Atlantic and the North Pacific region increases. Since many ice-going breakers are expected to be developed, various kinds of ice model tests will be carried out in order to improve their ice-going capability as well as their performance. This in turn leads to increased demand for physical model testing in ice to assist a design process and to improve a vessel’s ice-going capability and performance. The estimation of a ship’s resistance
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Suarez, Juan J., William Krewsky, Karri Kris, et al. "Design Criteria for Vibration Mitigation for Icebreaking Vessels." In SNAME Maritime Convention. SNAME, 2022. http://dx.doi.org/10.5957/smc-2022-117.

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The capability to continually perform operations in ice is a function of multiple design factors. These factors may directly influence one another and are integral to the design spiral. The compromises made in vessel design directly impact the vessel’s noise and vibration characteristics. Unlike conventional ships, icebreakers are subject to additional dynamic loads arising from interaction with ice. Because icebreaker hull forms are generally influenced by unique performance requirements, engineering past experiences, production feasibility, and risk mitigation during operation, early design
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Hänninen, Samuli, Antti Sallinen, and Arto Uuskallio. "Designing Electric Propulsion and Azipod ® Systems in Icebreaking Vessels." In SNAME 8th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2008. http://dx.doi.org/10.5957/icetech-2008-101.

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An increasing part of world’s oil and gas reserves are located in Arctic areas. Year-around operations in these areas put strict requirement to the vessels that are supporting the offshore field, and the use of ice-going and ice-breaking vessels and oil tankers is rapidly increasing. Electric propulsion with Azipod® propulsion has been used in ice-going and ice-breaking vessels in over a decade and the concept has shown to be reliable and very good characteristics when operated in ice. Maneuvering, DP capability, redundancy, and reliability have proven to be very good.
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Bryson, Edward, Bruce W. T. Quinton, and Claude Daley. "Probable Ice Impact Locations and Magnitudes on a Naval Hull Form in Forward Transit Through Marginal Ice Zones." In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-104854.

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Abstract Operational capability assessment of ships in the Arctic have traditionally focused on icebreaking hull forms. The classification of these capabilities resulted in the development of the International Association of Classification Societies (IACS) Unified Requirements for Polar Ships, which requires the hull structure to withstand a predetermined glancing bow impact. The assumptions made when developing the Polar Class Rules, such as the collision with a thick and semi-infinite multiyear ice floe, slow speeds, and a glancing bow impact on an icebreaking bow shape, are not always valid
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Kendrick, Andrew, and Jim Knott. "The Caspian Sea Icebreaking Supply Vessel Tulpar." In SNAME 7th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2006. http://dx.doi.org/10.5957/icetech-2006-146.

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Some of the world’s largest recent hydrocarbon discoveries are located beneath the waters of the Northern Caspian Sea, or offshore Kazakhstan. The Kashagan field alone is believed to contain in excess of 10 billion barrels of oil, and there are fields at containing billions of barrels at several other locations. The exploitation of these reserves is now moving from discovery and exploration phases towards production. The Northern Caspian Sea is an unusual environment for offshore development. The water is generally extremely shallow; less than 10 m water depth in almost all locations and down
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Daniel, Johanna Marie, Tuomas Romu, R. U. Franz von Bock und Polach, Moustafa Abdel-Maksoud, and Toni Skogström. "Impact of Forced Roll Motion on the Ice Resistance of Modern Icebreaking Bow Geometries." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-19178.

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Abstract Following the development of low friction hull coatings and azimuthing propulsion for icebreaking vessels, the development of auxiliary systems for reducing ice resistance fell from focus of research. One of these systems is comprised of active heeling tanks which induce a forced roll motion on the icebreaker. Today it is not fully understood how effective or even useful such systems would be for the icebreaking performance in combination with a modern icebreaking hull form. In this study, the impact of active heeling systems on level ice resistance is investigated by performing ice m
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Jones, Stephen J., and Michael Lau. "Propulsion and Maneuvering Model Tests of the USCGC Healy in Ice and Correlation with Full-Scale." In SNAME 7th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2006. http://dx.doi.org/10.5957/icetech-2006-104.

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Propulsion model test results of the USCGC Healy are reported here and correlated with full-scale data. The design requirement for the Healy was for “continuous icebreaking at 3 knots through 4.5 ft (1.37 m) of ice of 100 psi (690 kPa) strength”. The full-scale trials were designed to test this capability. Unfortunately, the ice strength found on the trials was approximately half of that specified. One of the objects of the model tests was to determine the effect of ice strength on the delivered power necessary for the Healy to meet her icebreaking specification. Propulsion overload tests in o
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Liu, Jiancheng, Michael Lau, and F. Mary Williams. "Mathematical Modeling of Ice-Hull Interaction for Ship Maneuvering in Ice Simulations." In SNAME 7th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2006. http://dx.doi.org/10.5957/icetech-2006-126.

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A new ice-hull interaction model using the analytical approach with numerical implementation for simulating various ship maneuvers in level ice is presented. Its simple physical detail and short computation time make it very suitable for real-time simulations. In the model, the icebreaking process was numerically simulated in the time domain. Three independent ice force components, the breaking, buoyancy and clearing forces, representing individual processes identified during a typical ice-hull interaction, are calculated separately and summed as the total ice force. The model is benchmarked a
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