恶劣天气下远洋船舶航线设计方案——以台风“杜苏芮”为例
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1.国家气象中心;2.中国电子科技集团第二十八研究所

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Optimizing The Routing of Ship’s Tropical Cyclone Avoidance
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National Meteorological Center

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    摘要:

    避台航线最优化问题是远洋气象导航中关键问题之一,为解决该问题,本文提出了一种面向船舶避台航线规划的图搜索算法,通过船舶失速模型和台风影响下的船舶航行风险识别方法,引入船舶变速集,定义图搜索算法中每条边的权重,基于计划航线改进图搜索算法的搜索策略,提高算法的效率和避台航线的平滑性,以获得最小航时的避台航线。文中以2305号台风“杜苏芮”为例验证算法在避台航线设计中的有效性,实验结果表明,该算法能有效的躲避台风“杜苏芮”的大风浪影响,并得到最优航时航线,对实现船舶智能避台、优化船舶航线设计具有重要得意义。

    Abstract:

    The optimization of avoiding typhoon routes stands as a crucial challenge in weather routeing. To address this problem, a graph search algorithm for tropical cyclone avoidance route planning is proposed. This approach uses ship speed loss model and ship sailing risks model under the influence of typhoons. It considers a range of ship speed variations, defines the weights for each edge in the graph search algorithm, and enhances the search strategy based on predefined routes. These improvements significantly increase the efficiency of the algorithm's search and the smoothness of the typhoon avoidance routes, ultimately with the aim of minimizing voyage duration. Using Typhoon "Doksuri" as an illustrative example, this paper validates the effectiveness of the algorithm in designing typhoon avoidance routes. Experimental results demonstrate that the proposed algorithm can effectively steer clear of Typhoon "Doksuri" and obtain optimal typhoon avoidance routes that minimize voyage duration. This research carries substantial significance in the realization of intelligent typhoon avoidance in weather routeing.

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  • 收稿日期:2023-10-09
  • 最后修改日期:2023-10-23
  • 录用日期:2023-11-16
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