Speed loss analysis and rough wave avoidance algorithms for optimal ship routing simulation of 28,000-DWT bulk carrier
Speed loss analysis and rough wave avoidance algorithms for optimal ship routing simulation of 28,000-DWT bulk carrier
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DOI：
10.1016/j.oceaneng.2021.108800
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发表时间：
2021-05
影响因子：
5
通讯作者：
K. Sasa;Chen Chen-Chen;Takuya Fujimatsu;R. Shoji;A. Maki
中科院分区：
文献类型：
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作者：
K. Sasa;Chen Chen-Chen;Takuya Fujimatsu;R. Shoji;A. Maki
温室气体排放的限制和发展中国家的存在使船舶航线和船型多样化，使得船舶运营更加复杂。近十年来，由于节能设计指标的实施，出现了多种模拟方法。然而，很少有研究用实际数据验证他们的模拟。本研究以一艘28，000载重吨级散货船为例，以速度损失分析法评估最佳航线。将仿真结果与散货船在太平洋大风浪中的实测数据进行了比较。为了比较，开发了速度损失分析算法的修改版本。这些算法与等时线法相结合。模拟结果与美国和欧洲的天气数据库中没有较高的避浪和故意减速的差异是明显的。考虑高避浪时，仿真航迹更接近实测航迹。在测量结果中有几个显着的速度下降，并考虑故意减速。最后，总结了包括大风浪航行在内的船舶定线制可重复性的控制因素。
Restrictions on greenhouse gas emissions and the existence of developing countries has diversified ship routes and ship types, making the ship operation more complex. Many types of simulation methods have come up in the last decade due to the enforcement of the energy efficiency design index. However, few studies that validated their simulations with actual data. This study performs the optimal ship routing of a 28,000-DWT-class bulk carrier to evaluate the optimal ship route with the speed loss analysis. The simulation results are compared with the measurement data of the bulk carrier in conditions including rough sea voyage in the Pacific Ocean. For comparison, a modified version of the speed loss analysis algorithm is developed. These algorithms are combined with the isochrone method. The differences in the simulation results with the American and European weather databases without higher wave avoidance and deliberate speed reduction are obvious. The simulated routes are closer to the measured ship trajectory if higher wave avoidance is considered. There are a couple of remarkable speed drops in the measured result, and the deliberate speed reduction is considered. Finally, some factors to control the reproducibility of ship routing including in rough sea voyages are summarized.