TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Estimation of shallow-water effect on icebreaker propulsion performance in ice



Full text article ( in russian)

Year

 
2018

Issue

 
385

Volume

 
3

Pages

 
9-17

Caption

 
Estimation of shallow-water effect on icebreaker propulsion performance in ice

Authors

 
Kanevsky G.I., Klubnichkin А.М., Ryzhkov А.V., Sazonov K.Е.

Keywords

 
icebreaker, shallow water, interaction coefficients, propulsion performance in ice

DOI

 
10.24937/2542-2324-2018-3-385-9-17

Summary

 
Object and purpose of research.he object of this study is to investigate the shallow-water effect on icebreaker propulsion performance in ice.
Subject matter and methodsModel test data obtained in hydrodynamic and ice basins in deep- and shallow-water conditions for an icebreaker of advanced design are handled using a new method of propulsion performance prediction for a multi-shaft icebreaker.
Main results..A method for prediction of propulsion performance of a multi-shaft icebreaker in ice was developed. Data were obtained regarding shallow-water effects on propulsion performance of icebreakers and ice-going vessels operating in ice-infested polar shallow waters.
ConclusionThe new method for prediction of propulsion performance in ice is enabled by introduction of a so-called “bollard pull” system of hull/propeller interaction coefficients. This method makes it possible to estimate parameters characterizing icebreaker propulsion in absence of interaction between ice cover and propellers, as well as to estimate full-scale ship ice resistance. In case of heavy interaction between icebreaker’s propellers and ice the comparison of full-scale and model data provides valuable information for better understanding of how interaction parameters influence the icebreaker performance. Estimations of icebreaker propulsion in ice under deep- and shallow-water conditions enable prediction of main parameters of ship motion so that proper measures could be taken to avoid hazardous situations.

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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