Quantitative study on under-keel clearance for ultra large-scale ships in restricted waterways

被引：0
|
作者：
Guo W. [1 ]
Liu J. [1 ,2 ]
Liu W. [1 ]
Fu Y. [1 ]
Hu Y. [1 ]
Liu Z. [1 ]
机构：
[1] School of Navigation, Wuhan University of Technology, Wuhan
[2] National Engineering Research Center for water Transport Safety, Wuhan University of Technology, Wuhan
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2018年 / 39卷 / 09期
关键词：
Data driven; Full-scale sea trial; Gaussian mixture model; Restricted waterways; Scaled model test; Ultra large-scale ships; Under-keel clearance; Waterway transportation;
D O I：
10.11990/jheu.201712006
中图分类号：
学科分类号：
摘要：
Considering the differences of the under-keel clearance (UKC) calculation methods and empirical values of domestic and foreign ports, this study proposes a basic UKC calculation method and an optimal UKC value based on data and gaussian mixture model (GMM) as well as the expectation maximization (EM) method. To evaluate the proposed method, realistic navigation data of ultra large-scale ships at the Caofeidian Port in China from 2009 to 2016 were collected to calculate the corresponding optimal UKC value range in terms of tonnage and loading rate in the restricted waters. The results were validated by experiments such as scaled model test and full-scale sea trial. The results show that the UKC of ultra large-scale ships under different tonnages and loading rates should have different value ranges. The optimized UKC calculated values are lower than the current requirements for ultra-large ships entering and leaving the port, and they are of practical significance to optimize shipping efficiency and safety. © 2018, Editorial Department of Journal of HEU. All right reserved.
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页码：1491 / 1497
页数：6
相关论文
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