TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

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


Articles of The Transactions of KSRC








Implications of new model of hull interaction with ice for ice loads: analytical research.



Full text article ( in russian)

Year

 
2011

Issue

 
349

Volume

 
6

Pages

 
95-102

Caption

 
Implications of new model of hull interaction with ice for ice loads: analytical research.

Authors

 
A. Golovkin, A. Nesterov

Keywords

 
ice loads, new model, variable parameters, analytical analysis

Summary

 
The paper examines a new model of hull interaction with ice. This model is based on the assumption that ice pressure is maximum in the center of the area where the hull contacts with ice (direct contact zone) and decreases in the neighbouring areas. Physically, it is evident that ice pressure beyond the direct contact zone is not higher than within it. Mathematically, this fact is described by a condition of pressure derivative not exceeding zero by transverse coordinate. This paper provides analytical analysis of implications of such updated model with respect to ice loads and compares them with ice loads for ships of Arc7, Arc5, Ice3 ice classes specified in current RMRS regulations. Maximum ice pressure and relative width of direct contact zone are specified with consideration of experimental data available. It is assumed that maximum ice pressure is determined by ice class because the ships of higher ice classes are supposed to interact with ice of higher strength.
The researches have provided the parameters for a new model of hull interaction with ice. These parameters make it possible to practically determine ice loads on the hulls of various ice classes.

Rubrics

 
Naval architecture

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