ABSTRACT

For non-typical icebreaking ships with high stem and/or small waterline angles, the hull–ice interaction process in level ice comprises a combination of many different phenomena which is difficult to be described by existing straightforward approaches. In order to gain knowledge about the level ice resistance of ships with non-typical icebreaking bow shapes, a methodology to improve the principal understanding of the hull–ice interaction process, ice failure, level ice resistance and its distribution along the ship hull during model scale ice tests is developed. For this purpose, one ship model has been manufactured and extensively instrumented. By performing resistance tests at several loading conditions, in model ice sheets of different thickness and at multiple speed values, relevant information on the nature of ice resistance of such ship type can be obtained. In this paper, the methodology is briefly summarized and part of the results of the model testing campaign are presented and discussed.

摘要

对于具有高船首和/或小水线角的非典型破冰船，水平冰中的船体-冰相互作用过程包括许多不同现象的组合，现有的直接方法难以描述。为了了解具有非典型破冰船首形状的船舶的水平冰阻力，一种提高对船体-冰相互作用过程、冰破坏、水平冰阻力及其在模型期间沿船体分布的主要理解的方法开发了规模冰测试。为此，制造了一个船模型并进行了广泛的检测。通过在多种负载条件下、不同厚度和多种速度值的模型冰盖中进行阻力测试，可以获得此类船型抗冰性质的相关信息。在本文中，简要总结了该方法，并介绍和讨论了模型测试活动的部分结果。