RESEARCH PAPERS: Arctic Engineering

Reliability Against Drifting Ice—An Adjunct to Monte Carlo Simulation

[+] Author and Article Information
A. B. Dunwoody

Department of Mechanical Engineering, University of British Columbia, Vancouver, British Columbia, Canada

J. Offshore Mech. Arct. Eng 113(3), 253-259 (Aug 01, 1991) (7 pages) doi:10.1115/1.2919928 History: Received October 02, 1989; Revised January 16, 1991


A method is presented for the calculation of the reliability of a structure against drifting ice subject to restrictions on the form of the ice load model and on the form of the probability distributions of the ice feature characteristics. The ice load model must have the form that the ice load is proportional to the product of the characteristics of the impacting ice feature raised to individual powers. Results from a Monte Carlo simulation program are presented to demonstrate that the ice loads for a number of useful ice interaction scenarios can be modeled by an equation of this form. The probability distributions of the ice feature characteristics must be from the log-normal family. A realistic example using publicly available ice data and ice load model is presented.

Copyright © 1991 by The American Society of Mechanical Engineers
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