Predicting Icebreaking Capabilities of Icebreakers

This document describes various methods for predicting the icebreaking capabilities of icebreakers with conventional hull forms. The influence of various ship parameters upon icebreaking capability is discussed. The effect of the characteristics of ice upon the ramming and continuous icebreaking cap...

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Bibliographic Details
Main Authors: Lewis, Jack W., Edwards, Roderick Y., Jr
Other Authors: COAST GUARD WASHINGTON DC NAVAL ENGINEERING DIV
Format: Text
Language:English
Published: 1969
Subjects:
Marine Engineering
*ICEBREAKERS
MATHEMATICAL PREDICTION
MODEL TESTS
PERFORMANCE(ENGINEERING)
FORCE(MECHANICS)
IMPACT
IMPACT SHOCK
ICE
PREDICTIONS
FLOATING BODIES
SHIP HULLS
MARINE ENGINES
COAST GUARD
COAST GUARD RESEARCH
CRACK PROPAGATION
SEA ICE
M5 CLASS VESSEL
M9 CLASS VESSEL
WAGB 282 VESSEL
Ice Sheet
Sea ice
Online Access:http://www.dtic.mil/docs/citations/AD0865248
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0865248
Description
Summary:This document describes various methods for predicting the icebreaking capabilities of icebreakers with conventional hull forms. The influence of various ship parameters upon icebreaking capability is discussed. The effect of the characteristics of ice upon the ramming and continuous icebreaking capability of icebreakers is investigated. The report includes a comprehensive list of mathematical techniques for predictions of ramming mode and continuous mode icebreaking capability. It contains a development of scaling procedures for model tests involving the interaction of a ship type vehicle and a floating ice sheet. A section is included which presents the results of full scale and model tests of icebreakers sponsored by the U. S. Coast Guard. Using the mathematical techniques recommended in this report, the performance of many existing icebreakers is analyzed and presented. (Author)

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