Comparative Analysis of Potential Auxiliary Icebreaking Devices/Systems for Great Lakes. Volume I

摘要

This report represents the first comprehensive evaluation and ranking of all the auxiliary icebreaking devices which have been proposed over the last fifty years. An extensive literature search and interviews with experienced Coast Guard personnel produced a list of 19 alternatives to evaluate. Decision Analysis was used to rank order the alternatives based on their utility in meeting the goals and objectives of the Coast Guard. One system was clearly superior than the others. This was the Pitching System in which a set of rotating weights are used to induced a pitching motion to the hull while icebreaking. (Author)