A semi-empirical model to predict ship resistance in level ice based on Lindqvist's model is presented. This model assumes that contact between the ship and the ice is a case of symmetrical collision, and two contact cases are considered. Submersion force is calculated via Lindqvist's formula, and the crushing and breaking forces are determined by a concept of energy consideration during ship and ice impact. The effect of the contact coefficient is analyzed in the ice resistance prediction. To validate this model, the predicted results are compared with model test data of USCGC Healy and icebreaker Araon, and full-scale data of the icebreaker KV Svalbard. A relatively good agreement is achieved. As a result, the presented model is recommended for preliminary total resistance prediction in advance of the evaluation of the icebreaking performance of vessels. Keywords: Semi-empirical model, Ship resistance, Level ice, Breaking force, Icebreaking performance


    Access

    Download


    Export, share and cite



    Title :

    Prediction of ship resistance in level ice based on empirical approach


    Contributors:


    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Semi-empirical level ice resistance prediction methods

    Erceg, Sandro / Ehlers, Sören | Taylor & Francis Verlag | 2017


    Semi-empirical level ice resistance prediction methods

    Erceg, Sandro | Online Contents | 2017




    A method of ship resistance prediction : wave resistance and viscous resistance

    Aertssen, G. / Gadd, G. E. / Collin, P. E. | TIBKAT | 1980