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Application of Upcrossing Rate Methodology to Local Design of Icebreaking Vessels

Authors
Freeman Ralph (CARD, C-CORE) | Ian Jordaan (Ian Jordaan and Associates) | Mike Manual (CARD, C-CORE)
DOI
https://doi.org/10.4043/27366-MS
Document ID
OTC-27366-MS
Publisher
Offshore Technology Conference
Source
Arctic Technology Conference, 24-26 October, St. John's, Newfoundland and Labrador, Canada
Publication Date
2016
Document Type
Conference Paper
Language
English
ISBN
978-1-61399-489-4
Copyright
2016. Offshore Technology Conference
Disciplines
6.1 HSSE & Social Responsibility Management, 5.7.4 Probabilistic Methods, 6.1 HSSE & Social Responsibility Management, 5 Reservoir Desciption & Dynamics, 5.7 Reserves Evaluation
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1 in the last 30 days
45 since 2007
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Price: USD 12.00
Abstract

Design of icebreaking vessels or ice-capable vessels must include consideration of extreme local ice pressures and exposure. Application of probabilistic methods used for data analysis, and then directly applied in design, with consideration of exposure is most useful. The Maximum Event (ME) Method is formulated for cases where ramming of ice is the dominant event. The peak pressures on a hull panel through the ram duration for each ram event is modelled. Data for each panel area are ranked and an exponential distribution fit to the tail of the ranked data. For design, we are then concerned with the maximum of n events expected in a specified period of time (e.g., a year). The random occurrence of ice along a route will also translate in to an annual number of expected impacts depending on ice and vessel dimensions. Vessel Ice classes would correspond to an annual number of impact events. This approach was used during the Arctic Shipping Pollution Prevention Regulation (ASPPR) revisions to validate maximum forces for different class vessels (e.g., a CAC4 vessel would be designed for 10-15 rams per year). For continuous-type interactions (e.g., a large floe crushing around a stationary vessel, or continuous icebreaking) an alternative approach is to use the Up-crossing Rate (UCR) Method. The number of local pressure upcrossings above a specific threshold on a particular panel area within a specified time (e.g., one year of operation) is determined. Exceedance curves for the UCR for increasing pressures on incremental panel areas are determined including an exponential fit to the tail of the distribution. For design, one only needs duration of interactions with the specified ice conditions through the year. The methodology was exercised to estimate local pressure parameters for transit segments during the ODEN 1991 trials. The greater the number of impact events and the longer the event duration, the greater the local pressures on panel areas. These high pressure zones occur and disappear, randomly shifting in location and intensity as fracture and spalling processes reshape the interaction area. For future development of the ISO design code, it is recommended that two modeling approaches be considered, the traditional ME method for short duration events and the UCR method for continuous interactions. The UCR method provides a simple means to design icebreaking vessels for extreme local pressures during continuous interactions. The method is also attractive for design of a stationkeeping vessel operating in broken ice where modeling individual floe interactions is not practical.

File Size  1 MBNumber of Pages   14

Brown, P.W., Jordaan, I. J., M.A., Nessim, M.M.R, Haddara, 1996. Optimization of Bow Plating for Icebreakers. Journal of Ship Research. Vol. 40, No. 1, March 1996. pp. 70–78.

Carter, J.E., C. Daley, M. Fuglem, I.J. Jordaan, A. Keinonen, C. Revill, T. Butler, K. Muggeridge, B. Zou, 1996. Maximum Bow Force for Arctic Shipping Pollution Prevention Regulations Phase II. Report for Transport Canada Ship Safety, Northern Region by Memorial University of Newfoundland Ocean Engineering Research Center. Report TP12652.

Erceg, B., Ralph, F., Ehlers, S., and Jordaan, I., (2015). Structural Response of Ice Going Ships using Probabilistic Design Load Method. Proceedings of the 34th International Conference on Ocean, Offshore and Arctic Engineering (OMAE). St John's, Newfoundland. June 2015

Frederking R. 2000. Local Ice Pressures from the Louis S. St. Laurent 1994 North pole transit. Report TP-13671-E. CHC/NRC-CNRC. 2000

Frederking, R., 2005. LOCAL ICE PRESSURES ON THE ODEN 1991 POLAR VOYAGE. Proceedings 18th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC’05 Vol.1, pp 353–363, Potsdam, NY, USA, 2005.

IACS, 2011. Requirements Concerning Polar Class, International Association of Classification Societies, IACS Req. 2011.

ISO, 2010. Petroleum and natural gas industries — Arctic offshore structures, International Standard by The Organization for Standardization (ISO). Reference number ISO/FDIS 19906:2010(E).

Johnston, M.Ritch, R. and Gagnon, R. 2008. Comparison of impact forces measured by different instrumentation systems on the CCGS Terry Fox during the Bergy Bit Trials. Cold Regions Science and Technology 52 (2008) 83–97.

Jordaan. I.J., M.A. Nessim, G.A. Ghoneim, and A.M. Murray, 1987. A Rational Approach to the Development of Probabilistic Design Criteria for Arctic Shipping, Proceedings 6th Offshore Mechanics and Arctic Engineering Symposium, Houston, Vol. IV, pp. 401–406.

Jordaan, I.J., M.A. Maes, P.W. Brown, and I.P. Hermans, 1993. Probabilistic Analysis of Local Ice Pressures. Proceedings, 11th International Conference on Offshore Mechanics and Arctic Engineering, Calgary, AB, Vol. II, pp. 7–13.

Jordaan, I. J., C. Li, T. Mackey, P. Stuckey, D. Sudom, and R. Taylor, 2007. Ice Data Analysis and Mechanics for Design Load Estimation, Final Report, prepared for NSERC, C-CORE, Chevron Canada Resources, National Research Council of Canada, Petro-Canada and Husky Energy.

Jordaan, I. J., J. Bruce, D. Masterson, and R. Frederking, 2010. "Local ice pressures for multi-year ice accounting for exposure," Cold Regions Science and Technology, Vol. 61, pp 97–106.

Kujala, P., Suominen, M., Jalonen, R. 2007. Increasing the safety of inbound shipping - Final report, Volume 1 and 2, Helsinki University of Technology, Espoo, Finland

Kujula, P. and Arughadhoss, S. 2012. Statistical Analysis of Ice Crushing Pressures on a Ship's Hull during Hull-ice Interaction. Cold Regions Science and Technology. 70 (2012) 1–11.

Kujala, P., and Ehlers, S., 2014. A Risk-based Evaluation Ice-strengthened Hull Structures. Paper No. ICETECH14-110-RF. Banff.

Li.,C., Jordaan, I.J., Taylor, R.S. 2010. Estimation of local ice pressure using up-crossing rate, Journal of Offshore Mechanics and Arctic Engineering. Journal of Offshore Mechanics and Arctic Engineering, Vol. 132, (2010) 031501-1to6.

Manual, M., Ralph, F., and Jordaan, I., 2016. Using the event maximum method to further analyze full scale local pressure data. Paper No. OTC - 27368, St. John's.

Melchers, R., 1998. Structural reliability analysis and prediction. John Wiley and Sons Ltd.

Nessim, M., I.J. Jordaan, S. Lantos, and A. Cormeau, 1986. Probability-based design criteria for ice loads on fixed structures in Beaufort Sea. Final report, Volume I, Det Norske Veritas (Canada) Ltd.

Paik, J.L., 2012. "Lessons Learned; what maritime accidents can teach us about human error and structural design and engineering." Marine Technology, April 2012.

Piercey, G., Ralph, F., Barrett, J., Macneill, A., Jordaan, I.J., Younan, A., Fenz, D. (2016). " Design of a Shipboard Local Load Measurement System to Collect Managed Ice Load Data." In Proc. of the Arctic Technology Conference (ATC). St. John's, Newfoundland and Labrador, Canada, October 24-26, 2016. OTC-27455."

Ralph, F., (2016). Design of Ships and Offshore Structures: A Probabilistic Approach for Iceberg and Multi-Year ice Impact Loads for Decision-making with Uncertainty. A Thesis submitted to School of Graduate Studies in partial fulfillment of the requirements for the degree of Doctor of Philosophy. Faculty of Engineering and applied Science, Memorial University, St. John's, NL.

Ralph, F. and I.J. Jordaan (2013). Probabilistic Methodology for Design of Arctic Ships. Proceedings of the 32nd International Conference on Ocean, Offshore and Arctic Engineering (OMAE). Nantes, France. June 2013.

Ralph, F., I.J. Jordaan, P. Clark, and P. Stuckey (2006). Estimating Probabilistic Iceberg Design Loads on Ships Navigating in Ice Covered Waters. Paper No. ICETECH06-05-006, Banff.

Randell, C., F. Ralph, D. Power, and P. Stuckey (2009). Technological Advances to Assess, Manage and Reduce Ice Risk in Northern Developments. OTC 20264-PP, Houston. May 2009.

Ritch, R., Frederking, R., Johnston, M., Browne, R. and Ralph, F., 2008. Local ice pressures measured on a strain gauge panel during the CCGS Terry Fox bergy bit impact study, Cold Regions Science and Technology, Vol. 52, pp 29–49.

Taylor, R., I.J. Jordaan, C. Li, and D. Sudom, 2009. "Local Design Pressures for Structures in Ice: Analysis of Full-Scale Data." Journal of Offshore Mechanics and Arctic Engineering. August 2010, Vol. 132 / 031502-1.

Tõns, T., F. Ralph, S. Ehlers, and I.J. Jordaan (2015). Probabilistic Design Load Method for the Northern Sea Route. Proceedings of the 34th International Conference on Ocean, Offshore and Arctic Engineering (OMAE). St John's, Newfoundland. June 2015.

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