TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

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


Articles of The Transactions of KSRC








Approaches to development of a new model of hull-ice interaction.



Full text article ( in russian)

Year

 
2011

Issue

 
349

Volume

 
6

Pages

 
85-94

Caption

 
Approaches to development of a new model of hull-ice interaction.

Authors

 
A. Gaina

Keywords

 
ice strength, ship interaction with ice, updated model

Summary

 
Current hydrodynamic model (HDM) of ship collision with ice has some deviations from physical picture of ice pressure development along the contact area. Analytical HDM relationships confirmed by integral experimental results have shown smooth pressure distribution, whereas analysis of modern domestic and foreign experimental data (both laboratory and fullscale) shows that pressure distribution has clear peaks. The development of new updated model is aimed at eliminating the contradiction between analytical and experimental data. According to the model suggested, the pressures are maximum at the centre of contact area where intermediate layer is absent, and they decrease as intermediate layer thickness grows. Solution of differential HDM equations provides analytical relationships for ice pressure, load per unit length, shape and size of ice load curve. The processing results for published experimental data allowed making conclusions on maximum pressures and width of direct ice contact area which can be used in analytical analysis for specifying parameters of a new model.

Rubrics

 
Naval architecture

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