基于速度特征的内河LNG船舶三维动态安全区建模方法

doi:10.3969/j.issn.1674-0696.2024.02.16

重庆交通大学学报（自然科学版） ›› 2024, Vol. 43 ›› Issue (2): 122-130.DOI: 10.3969/j.issn.1674-0696.2024.02.16

• 交通装备 • 上一篇

基于速度特征的内河LNG船舶三维动态安全区建模方法

陈立家1,2，王冰1,2，吴小红1,2，李胜为1

(1. 武汉理工大学航运学院，湖北武汉 430063； 2.武汉理工大学内河航运技术湖北省重点实验室，湖北武汉 430063)

收稿日期:2022-12-07 修回日期:2023-05-10 发布日期:2024-03-01
作者简介:陈立家（1979—），男，湖北武汉人，副教授，博士，主要从事智能航海与仿真方面的研究。E-mail：navisky@qq.com 通信作者：吴小红（1979—），男，湖北武汉人，实验师，硕士，主要从事船舶操纵与控制方面的研究。E-mail：5303770@qq.com
基金资助:
国家重点研发计划项目(2019YFB1600603)

A Modeling Method of Three-Dimensional Dynamic Safety Zone for Inland LNG Ships Based on Speed Characteristics

CHEN Lijia1,2, WANG Bing1,2, WU Xiaohong1,2, LI Shengwei1

(1.School of Navigation, Wuhan University of Technology, Wuhan 430063, Hubei, China; 2.Hubei Provincial Key Laboratory of Inland Navigation Technology, Wuhan University of Technology, Wuhan 430063, Hubei, China)

Received:2022-12-07 Revised:2023-05-10 Published:2024-03-01

摘要/Abstract

摘要： 为提高LNG船舶安全区设置的科学性，保障内河水域LNG船舶的通航安全，提出了一种基于速度特征的内河LNG船舶三维动态安全区建模方法。基于LNG船舶航行方向和速度变化的特点，将传统速度的线性分布模型改进为随机分布模型；利用区域分解法，将复杂的三维几何区域分解成若干个子区域，建立相应的边界方程；基于船舶间极限通过设定约束条件，根据其几何形状，运用停船视距理论、船舶漂移计算方法和富余水深计算方法对安全区内部结构不同方位的安全距离进行数值求解。针对某内河LNG船舶，通过设置不同速度条件进行仿真验证。研究结果表明：该模型能较真实反映船舶安全区在速度影响下的差异变化，为内河LNG船舶航路规划起到参考作用。

关键词: 船舶工程；内河水域；LNG船舶；动态安全区；速度特征

Abstract: In order to improve the scientificity of LNG ship safety zone setting and ensure the navigation safety of LNG ships in inland waterway, a three-dimensional dynamic safety zone modeling method for inland LNG ships based on speed characteristics was proposed. Based on the characteristics of LNG ship navigation direction and speed changes, the traditional linear distribution model of speed was improved to be a random distribution model. Then, by using the domain decomposition method, the complex three-dimensional geometric region was decomposed into several sub-regions to establish the corresponding boundary equations. Based on the limit between ships, constraint conditions were set, and according to their geometric shape, the safety distance of the internal structure of the safety zone in different directions was numerically solved by using the stopping sight distance theory, the ship drift calculation method and the surplus water depth calculation method. For a certain inland LNG ship, the simulation verification was carried out by setting different speed conditions. The research results show that the proposed model can correctly reflect the difference change of ship safety zone under the influence of speed and play a reference role for inland LNG ship route planning.

Key words: ship engineering; inland waterway; LNG ship; dynamic safety zone; speed characteristics

中图分类号:

U675.5+8

陈立家1,2，王冰1,2，吴小红1,2，李胜为1. 基于速度特征的内河LNG船舶三维动态安全区建模方法[J]. 重庆交通大学学报（自然科学版）, 2024, 43(2): 122-130.

CHEN Lijia1,2, WANG Bing1,2, WU Xiaohong1,2, LI Shengwei1. A Modeling Method of Three-Dimensional Dynamic Safety Zone for Inland LNG Ships Based on Speed Characteristics[J]. Journal of Chongqing Jiaotong University(Natural Science), 2024, 43(2): 122-130.

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基于速度特征的内河LNG船舶三维动态安全区建模方法

A Modeling Method of Three-Dimensional Dynamic Safety Zone for Inland LNG Ships Based on Speed Characteristics

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