International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
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An experimental study on occurrence of intermediate peaks in ice load signals

  • Ahn, Se-Jin (Dept. of Ocean System Engineering, Gyeongsang National University) ;
  • Lee, Tak-Kee (Dept. of Naval Archi. & Ocean Eng., Gyeongsang National University, Institute of Marine Industry)
  • Received : 2019.03.07
  • Accepted : 2019.09.19
  • Published : 2020.12.31
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Abstract

The purpose of this study is to analyze the relationship between the occurrence of intermediate peak and time duration, and to conduct a review for the causes of the intermediate peak. In this test, ice impact tests were conducted using a bow side shell frame and ice specimen. A total of 70 samples were manufactured. Two types of ice specimen with relatively different surface conditions were used. The criterion for dividing the two types of ice specimen was the different exposure times to room temperature after freezing. This experiment was conducted for each parameter in order to reproduce the actual icebreaking situation. As a result of the analysis, the intermediate peak in the ice load signal have been found to be caused by mechanisms by which the inner surface of broken ice contact with hull immediately after the initial hitting point of ice has been broken.

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References

  1. ABS, 2011. Guide for Ice Load Monitoring System. American Bureau of Shipping, Houston, TX, USA.
  2. Ahn, S.J., An, W.S., Lee, T.K., Choi, K., 2017. An Analysis on Strain Gauge Signal Measured from Repetitive Ramming in Heavy Ice Condition. The Twenty-Fourth (2017) Port and Ocean Engineering under Arctic Conditions (Busan, Korea).
  3. Choi, K., 2015. Ice Loads on Icebreaking Vessels (Munundang).
  4. Hwang, M.R., Lee, T.K., 2016. A study on ice-induced Fatigue of the ARAON. In: Proceeding of the 30th the Korean Society of Ocean Engineers Conference, 17-18 November, Busan, Korea.
  5. ISSC, 2012. International Ship and Offshore Structures Congress (ISSC), Committee V.6 Report. Arctic Technology.
  6. Jeon, Y.J., Rim, C.W., Lee, T.K., 2013. Profile Analysis on signal measured local ice load during icebreaking in Arctic sea. J. Korean Navig. Port Res. 37 (2), 143-148. https://doi.org/10.5394/KINPR.2013.37.2.143
  7. Kendrick, A., Daley, C., 2011. Structural Challenges Faced by Arctic Ships, Ship Structure Committee Report No. SSC-461.
  8. Lee, T.K., Kim, T.W., Rim, C.W., Kim, H.S., 2014. A study on analysis of ice load measured during the Voyage in the Arctic Sea. J. Soc. Naval Archit. Korea 51 (2), 107-113. https://doi.org/10.3744/SNAK.2014.51.2.107
  9. Lee, M.W., Kwon, Y.H., Rim, C.W., Lee, T.K., 2015. A comparative study on ice load characteristics between general and ice-breaking operations in ice-covered waters. J. Ocean Eng. Technol. 29 (1), 35-40.
  10. Lee, J.H., Kwon, Y.H., Rim, C.W., Lee, T.K., 2016. Characteristics analysis of local ice load signals in ice-covered waters. Int. J. Naval Archit. Ocean Eng. 8 (1), 66-72. https://doi.org/10.1016/j.ijnaoe.2016.01.001
  11. Lim, T.W., Kim, M.C., Chun, H.H., 2008. Study on resistance of icebreaker by density variation of synthetic ice in general towing tank. J. Naval Archit. Ocean Eng. 22(5), 83-86.
  12. Min, J.K., Choi, K., Cheon, E.J., Kim, J.M., 2016. Ice load estimation procedures for IBRV ARAON by analyzing shear strain data measured in Arctic sea. J. Ocean Eng. Technol. 30 (6), 468-473. https://doi.org/10.5574/KSOE.2016.30.6.468
  13. Shin, S.M., 2015. ['The Second Icebreaker' Go to the North Pole] Icebreaker Dedicated to the North Pole Will Be Put into Service in 2020. Dongascience. Online Available at: http://dongascience.donga.com/news.php?idx=5814.

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