Analysis of a Collision-Energy-Based Method for the Prediction of Ice Loading on Ships
Source abstract
Abstract
Ships designed for operation in Polar waters must be approved in accordance with the International Code for Ships Operating in Polar Waters (Polar Code), adopted by the International Maritime Organization (IMO). To account for ice loading on ships, the Polar Code includes references to the International Association of Classification Societies’ (IACS) Polar Class (PC) standards. For the determination of design ice loads, the PC standards rely upon a method applying the principle of the conservation of momentum and energy in collisions. The method, which is known as the Popov Method, is fundamentally analytical, but because the ship–ice interaction process is complex and not fully understood, its practical applications, including the PC standards, rely upon multiple assumptions. In this study, to help naval architects make better-informed decisions in the design of Arctic ships, and to support progress towards goal-based design, we analyse the effect of the assumptions behind the Popov Method by comparing ice load predictions, calculated by the Method with corresponding full-scale ice load measurements. Our findings indicate that assumptions concerning the modelling of the ship–ice collision scenario, the ship–ice contact geometry and the ice conditions, among others, significantly affect how well the ice load prediction agrees with the measurements.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Arctic and Antarctic ice dynamics · Ocean Acidification Effects and Responses · Risk and Safety Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Engineering, Aalto University, P.O. Box 15300, FI-00076 AALTO Espoo, Finland
Funding
Horizon 2020 Framework Programme
References (43)
Show source-provided references
1. IMO (2015). International Code for Ships Operating in Polar Waters (Polar Code), International Maritime Organization.
2. Kvålsvold, J. (2012). NSR Transit Shipping—A Risk Based Approach. Northern Sea Route: New Opportunities, Det Norske Veritas.
3. IMO (2014). Resolution MSC.386(94). Amendments of the International Convention for the Safety of Life at Sea, 1974, as Amended, International Maritime Organization.
4. IMO (2013). Guidelines for the Approval of Alternatives and Equivalents as Provided for in Various IMO Instruments, International Maritime Organization.
5. IMO (2006). Guidelines on Alternative Design and Arrangements for SOLAS Chapters II-1 and III. MSC.1/Circ.1212, International Maritime Organization.
6. IMO (2001). Guidelines on Alternative Design and Arrangements for Fire Safety, International Maritime Organization. MSC/Circ.1002.
7. Oblique ice collision loads on ships based on energy methods
8. Kujala, P. (2017). Ice Loading on Ship Hull. Encyclopedia of Maritime and Offshore Engineering, John Wiley & Sons.10.1002/9781118476406.emoe012 ↗
9. Popov, Y., Faddeyev, O., Kheisin, D., and Yalovlev, A. (1967). Strength of Ships Sailing in Ice, Sudostroenie Publishing House.
10. Daley, C. (2000). Background Notes to Design Ice Loads.
11. Tunik, A. (1984). Dynamic Ice Loads on a Ship, International Association for Hydraulic Research.
12. Kim, E., and Amdahl, J. (2015, January 14–18). Understanding the effect of the assumptions on shell plate thickness for Arctic ships. Trondheim. Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions, Trondheim, Norway.
13. Huang, Y., Qiu, W., Ralph, F., and Fuglem, M. (2016, January 5). Improved Added Mass Modeling for Ship-Ice Interactions Based on Numerical Results and Analytical Models. Proceedings of the Offshore Technology Conference, Houston, TX, USA.10.4043/27356-MS ↗
14. Dolny, J. (2018). Methodology for Defining Technical Safe Speeds for Light Ice-Strengthened Government Vessels Operating in Ice, The Ship Structure Committee. Report No. SR—1475.
15. Storheim, M. (2016). Structural Response in Ship-Platform and Ship-Ice Collisions. [Ph.D. Thesis, NTNU].
16. Review of risk-based design for ice-class ships10.1016/j.marstruc.2018.09.008 ↗
17. Sazidy, M., Daley, C., Colbourne, B., and Wang, J. Effect of Ship Speed on Level Ice Edge Breaking. Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, San Francisco, CA, USA.10.1115/OMAE2014-24101 ↗
18. Daley R&E (2015). Ice Impact Capability of DRDC Notional Destroyer.
19. Daley, C., and Liu, J. (2010). Assesment of Ship Ice Loads in Pack Ice, ICETECH.10.5957/ICETECH-2010-141 ↗
20. Kendrick, A., Quinton, B., and Daley, C. (2009, January 4–7). Scenario-Based Assessment of Risks to Ice Class Ships. Proceedings of the Offshore Technology Conference, Houston, TX, USA.10.4043/OTC-20002-MS ↗
21. Quinton, B., and Daley, C. (2012, January 17–22). Realistic moving ice loads and ship structural response. Proceedings of the 22nd International Offshore and Polar Engineering Conference, Rhodes, Greece.
22. Guidelines for the nonlinear finite element analysis of hull response to moving loads on ships and offshore structures10.1080/17445302.2016.1261391 ↗
23. On multi-planar impact mechanics in ship collisions10.1016/j.marstruc.2018.10.006 ↗
24. Croasdale, K. (1984, January 7–9). The limiting driving force approach to ice loads. Proceedings of the Offshore Technology Conference, Houston, TX, USA.10.4043/4716-MS ↗
25. Enkvist, E., Varsta, P., and Riska, K. (1979). The Ship-Ice Interecation, The International Conference on Port and Ocean Engineering under Arctic Conditions.
26. Daley, K., and Riska, K. (1990). Review of Ship-ice Interaction Mechanics Report from Finnish-Canadian Joint Research Project No. 5 “Ship Interaction With Actual Ice Conditions” Interim Report on Task 1A, Ship Lab, Helsinki University of Technology. Report M-102.
27. Frederking, R. (1999, January 23–27). The Local Pressure-Area Relation in Ship Impact with Ice. Proceedings of the 15th International Conference on Port and Ocean Engineering under Arctic Conditions, Helsinki, Finland.
28. Local contact pressures in ship/ice and structure/ice interactions10.1016/0165-232X(93)90005-S ↗
29. Croasdale, K.R. (1974, January 7–9). Crushing strength of Arctic ice. Proceedings of the Coast and Shelf of the Beaufort Sea, Symposium, San Francisco, CA, USA.
30. Riska, K. (2018). Ice edge failure process and modelling ice pressure. Encyclopedia of Maritime and Offshore Engineering, John Wiley & Sons.10.1098/rsta.2017.0340 ↗
31. Indentation of an S2 floating ice sheet in the brittle range10.3189/S0260305500005449 ↗
32. Michel, B. (1978). Ice Mechanics, Laval University Press.
33. Kheysin, D. (1961). Opredeleniye Vneshnikh Nagruzok Deystvuyushchikh na Korpus Sudna pri Ledovom Szhatii [Determination of External Loads Which Act on the Hull of A Ship When under Pressure from Ice], Problemy Apktiki i Antapktiki.
34. Daley, C. (1999, January 24–29). Energy based ice collision forces. Proceedings of the 15th International Conference on Port and Ocean Engineering under Arctic Conditions, Helsinki, Finland.
35. Daley, C., and Kim, H. (2010, January 6–11). Ice collision forces considering structural deformation. Proceedings of the ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, Shanghai, China.10.1115/OMAE2010-20657 ↗
36. An extended ice failure model to improve the fidelity of icebreaking pattern in numerical simulation of ship performance in level ice10.1016/j.oceaneng.2019.02.051 ↗
37. Daley, D., Dolny, J., and Daley, K. (2017). Safe Speed Assessment of DRDC Notional Destroyer in Ice, Phase 2 of Ice Capability Assessment.
38. IACS (2016). Requirements Concerning POLAR CLASS, International Association of Classification Societies.
39. Kõrgesaar, M., and Kujala, P. (2017). Validation of the Preliminary Assessment Regarding the Operational Restrictions of Ships Ice-Strengthened in Accordance with the Finnish-Swedish Ice Classes When Sailing in Ice Conditions in Polar Waters, Aalto University publication series Science + Technology.
40. Suominen, M., and Kujala, P. (2015, January 14–18). The measured line load as a function of the load length in the Antarctic waters. Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions, Trondheim, Norway.
41. Suominen, M., Bekker, A., Kujala, P., Soal, K., and Lensu, M. (2017, January 11–16). Visual Antarctic Sea Ice Condition Observations during Austral Summers 2012–2016. Proceedings of the 24 International Conference on Port and Ocean Engineering under Arctic Conditions, Busan, Korea.
42. Idrissova, S., Kujala, P., Repin, R., and Li, F. (2019, January 9–13). The study of the Popov method for estimation of ice loads on ship’s hull using full-scale data from the Antarctic sea. Proceedings of the 25th International conference on Port and Ocean Engineering under Arctic Conditions, Delft, The Netherlands.
43. Suominen, M., Su, B., Kujala, P., and Moan, T. (2013, January 9–13). Comparison of measured and simulated short term ice loads on ship hull. Proceedings of the 22nd International Conference on Port and Ocean Engineering under Arctic Conditions, Espoo, Finland.