Full scale ice sea trials of Korean ice breaking research vessel ‘Araon’ on the big floes near Antarctica
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Abstract
A speed sea trial was performed in the Amundsen Sea in February and March of 2012. The Korean ice breaking research vessel “Araon” was used to check speed performance on the big floes. Two of ice trial cases were carried out. We describe the time history of location, the engine power, and the revolutions per minute during the ice trial, and the trajectory of the ship. Additionally, the measured ice properties are considered and discussed. The ice trial results were analyzed according to variation in ice thicknesses, ice strength, propulsion power, and the speed level of the ship. Our analysis results are compared to model test results and ice trial results. A correction to the target ice thickness was used to compare the power and speed relation in the same ice thickness because it is easy to know the relative speed performance of the ship. The Hamburgische Schiffbau-Versuchs Anstalt method was applied for the correction. The speed of Araon in big floes was higher than the speed in level ice. The speed after the correction at 10 MW of power and 103 cm of ice thickness was 5.4 knots based on analysis results.
Keywords
Full-scale ice trial Ice-breaking vessel Araon Amundsen Sea Ice resistanceNotes
Acknowledgments
This paper is part of “Development of the Safe Operation Methodology of Ice-class Vessel at Arctic Sea Route and the Cryogenic Evaluation Techniques for the Ice Performance,” Grant No. 10033640, supported by the Ministry of Knowledge and Economy of the Korean government and National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) through GCRC-SOP No. 2011-0030660. Financial support was also provided through the Industrial Strategic Technology Development Program (Grant No. PNS133B). The authors gratefully acknowledge this support.
References
- 1.Lukin V, Likhomanov V (2010) Full-scale ice trials of the Korean research icebreaker Araon. In: AARI (Arctic and Antarctic Research Institute) reportGoogle Scholar
- 2.Kim HS, Lee CJ, Choi KS, Kim MC (2011) Study on icebreaking performance of the Korea icebreaker Araon in the arctic sea. Int J Nav Archit Ocean Eng 3(3):208–215CrossRefGoogle Scholar
- 3.Choi KS, Lee CJ, Rim CW, Kim HS (2011) Strength characteristics of arctic sea ice from ice field tests of the icebreaking research vessel Araon. J Soc Nav Archit Korea 48(3):254–259 (in Korean)CrossRefGoogle Scholar
- 4.ITTC (2002) Testing and extrapolation methods ice testing resistance test in level ice. In: Recommended procedures and guidelines, No 7.5-02-04-02.1Google Scholar
- 5.Lee SG, Kim MC, Lee WJ, Kim HS, Lee CJ (2011) Study on the estimation of power based on model test results using ice thickness and strength correction method. In: Proceeding of the society of naval architects of Korea, Busan, Korea, June 2–3, pp 913–920Google Scholar
- 6.Lee CJ, Koh CD, Lee YY, Park IR (2006) A development of icebreaking Hull form for Antarctic Research Vessel. In: Proceedings of the 16th international offshore and polar engineering conference, San Francisco, CA, USA, May 28–June 2, pp 608–613Google Scholar
- 7.Timco GW, O’Brien S (1994) Flexural strength equation for sea ice. Cold Regions Sci Technol 22(3):285–298CrossRefGoogle Scholar
- 8.Schultz LA, Middleton RW, Dai RY (1994) Operational performance of the RV NATHANIEL B. PALMER. In: ICETECH ’94, 5th international conference on ships and marine structures in cold regions, Calgary, Canada, 16–19 March, pp T1–T27Google Scholar