船舶冰运模拟中的等效冰厚:现有定义综述及改进定义的提出

IF 1.4 Q3 ENGINEERING, MARINE
Aleksandar-Saša Milaković, Fang Li, R. U. F. von Bock und Polach, S. Ehlers
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引用次数: 9

摘要

文献中有几种简化复杂冰盖的等效冰厚定义。然而,他们目前缺乏系统的分析。因此,本文回顾了不同的定义,并将其与高保真度冰渡模拟器进行了验证,确定了最准确的定义,一艘被分析船舶的平均误差为16%,另一艘平均误差为10.5%。此外,还测试了等效冰厚预测船舶在冰中搁浅的能力,在88%的情况下准确预测了这一事件。此外,对传统定义中未包含的参数进行了敏感性分析,发现只有山脊固结层的厚度才有显著影响。最后,扩展了基于等效冰体积的传统概念,提出了等效性能冰厚度的概念,使一艘船的平均误差降低到4.6%,另一艘船的误差降低到3.2%,优于传统方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Equivalent ice thickness in ship ice transit simulations: overview of existing definitions and proposition of an improved one
ABSTRACT Several definitions of equivalent ice thickness for simplification of complex ice cover are found in the literature. However, their systematic analysis is currently absent. Therefore, this paper reviews different definitions and validates them against a high-fidelity ice transit simulator, determining the most accurate one, with an average error of 16% for one analysed ship, and 10.5% for the other. Furthermore, capability of equivalent ice thickness to predict ship besetting in ice is tested, accurately predicting this event in 88% of the cases. Moreover, sensitivity analysis to the parameters not included in the traditional definitions is conducted, and it is found that only the thickness of ridge consolidated layer has significant impact. Finally, traditional concept based on equivalent ice volume is extended, and a concept of equivalent-performance ice thickness is developed, outperforming the traditional approach by reducing the average error to 4.6% for one ship, and to 3.2% for the other.
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来源期刊
Ship Technology Research
Ship Technology Research ENGINEERING, MARINE-
CiteScore
4.90
自引率
4.50%
发文量
10
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