Abstract
A probabilistic method is presented for estimating global iceberg collision design loads for floating production vessels. Preliminary design loads are estimated for a concrete semi-submersible at the Terra-Nova site on the north-east part of the Grand Banks. A large number of simulated iceberg collision loads are determined using Monte Carlo techniques to choose the required input parameters (such as iceberg size and collision velocity) from estimated distributions. Using the probability distribution of these loads and the estimated frequency of iceberg collisions, design loads corresponding to probabilities of exceedance of 10-3 and 10-4 per year are estimated. The results are presented as curves giving the design load as a function of the success of the operators in detecting and avoiding icebergs.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
CSA Preliminary Standard S471-M1989. General requirements, design criteria, the environment, and load.
Christensen, F. 1989. Efficiency of detachable platforms in the Arctic. Journal of Cold Regions Engineering, Vol. 3, pp. 37–54.
Dawe, B.R. 1985. A radar cross section model for icebergs. IEEE 1985 International Radar Conference, Arlington, Virginia, pp. 259–264.
Duthinh, D., Marsden, S. 1986. Iceberg impact load on a gravity based structure. Cold Regions Eng., Proc. of the Fourth Int. Conf., Anchorage, AK, ASCE. pp. 82–92.
Duthinh D., Klein, IC., Rerettier, J.F., Guichard, A. and Engler, M. 1990. Full scale iceberg impact: a pilot experiment in Antarctica. IAHR Symposium on Ice, Espoo, Finland, pp. 890–901.
El Tahan, M., Simms, A. 1989. The interaction of the NEKTON 8000 FPV with sea ice and bergy bits, Phase I: Ice environmental data. Final report. C-CORE Contract Report 88 - C9.
Fuglem, M., Jordaan, I. 1989. The interaction of the NEKTON 8000 FPV with sea ice and bergy bits, Phase IV: Risk analysis. Final report. C-CORE Contract Report 89 - C7.
Isaacson, M., McTaggart, K. 1989. An iceberg collision reliability model incorporating hydrodynamic effects. Proc. of the Eighths Int. Conf. on Offshore Mech. and Arctic Eng., The Hague, The Netherlands, Vol. 4, pp. 293–308.
Johnson, R.C., Benoit, J.R. 1987. Iceberg impact strength. 19th Annual Offshore Technology Conference, Houston, TX, Vol. 4, pp. 417–423.
Jordaan, I.J. 1983. Risk analysis with application to fixed structures in ice. Seminar/ Workshop on Sea Ice Management, Memorial University of Newfoundland, St. John’s, Nfld., 19 p.
Jordaan, I.J. 1987. Probabilistic analysis of environmental data for design of fixed and mobile arctic offshore structures. Fifth Int. Conf. on Applications of Statistics and Probability in Soil and Structural Eng. (ICASP). Vol. 2, pp. 1130–1138.
Leblond, P.H., jCalisal, S.M. and Isaacson, M. 1982. Wave spectra in Canadian waters. Canadian Contractor Report of Hydrography and Ocean Sciences, No. 6, Dept. of Fisheries and Oceans, Ottawa.
Lever, J.H., Attwood, D. aid Sen, D. 1988a. Factors affecting the prediction of wave induced iceberg motion. Cold Regions Science and Technology, 15, pp. 177–190.
Lever, J.H., Sen, D. and Attwood, D. 1988b. The influence of shape on iceberg wave induced velocity statistics. Seventh Int. Conf. on Offshore Mechanics and Arctic Engineering, Houston, TX, Vol. IV, pp. 125–132.
Lever, J.H., Colbourne, B. and Mak, L. 1989. A model study of the wave-driven impact of bergy bits with a semi-submersible platform. Proc. of Eighth Int. Conf. on Offshore Mech. and Arctic Eng., The Hague, The Netherlands, Vol. IV, pp. 393–403.
Lindberg, K., Anderson, L. 1987. Ice impacts on semi-submersibles. Sixth Int. Offshore Mech. and Arctic Eng. Sym., Houston, TX, Vol. 4, pp. 313–320.
Nadreau, J.P. 1986. Survey of physical and mechanical properties of icebergs. Proc. of Workshop on Extreme Ice Features, Banff, AB, NRC Technical Memorandum No. 41, pp. 155–192.
Nessim, M.A., Murray, A.M., Maes, M.A., and Jordaan, I.J. 1984. Risk analysis of mobile offshore units operating in ice-infested waters. Ice Tech 84, Calgary, AB, Paper H.
Putot, C., Molin, B. and Valechon, C. 1988. Impact of ice bergy bits on a concrete semi-submersible. Polartech 88, Trondheim, Norway, Vol. 1, pp. 191–207.
Sittrop, M. 1977. On the sea-clutter dependancy on wind speed. Radar-77, International Conference, London, England.
Skolnik, M.I. 1970. Radar handbook. McGraw-Hill, New York.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1991 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Fuglem, M.K., Duthinh, D., Lever, J.H., Jordaan, I. (1991). Probabilistic Determination of Iceberg Collision Design Loads for Floating Production Vessels. In: Jones, S., Tillotson, J., McKenna, R.F., Jordaan, I.J. (eds) Ice-Structure Interaction. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84100-2_23
Download citation
DOI: https://doi.org/10.1007/978-3-642-84100-2_23
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-84102-6
Online ISBN: 978-3-642-84100-2
eBook Packages: Springer Book Archive