Impact of ship operations aided by voyage optimization on a ship's fatigue assessment
Impact of ship operations aided by voyage optimization on a ship's fatigue assessment
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航次优化辅助的船舶运营对船舶疲劳评估的影响
DOI：
10.1007/s00773-020-00769-8
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发表时间：
2020-09-24
影响因子：
2.6
通讯作者：
Osawa, Naoki
中科院分区：
文献类型：
--
作者：
Lang, Xiao;Wang, Helong;Osawa, Naoki
在本研究中，研究了影响船舶波浪统计的不同操作因素，例如慢速航行和航次优化。特别是，通过将遇到的波浪与设计波浪散点图进行比较，研究了各种航次优化方法对船舶运营期间的长期波浪统计和相应疲劳损伤的影响。除了两支集装箱船和 VLCC 船队的中午报告之外，还利用在北大西洋航行的集装箱船三年来的全尺寸测量来研究其影响。此外，还讨论了使用航行优化来最小化操作期间疲劳损伤累积的好处。当船舶遵循各种优化方法和设计图生成的航线时，发现波浪统计存在较大差异。对于一些西行航次，航次优化方法可以显着减少船舶的疲劳损伤累积，从而延长疲劳寿命。
In this study, different operation factors affecting a ship's wave statistics are studied, such as the slow steaming and voyage optimizations. Especially, the impact of various voyage optimization methods on the long-term wave statistics and corresponding fatigue damage during ship operations is investigated by comparing the encountered waves with the design wave scatter diagram. Three years of full-scale measurements from a container ship sailing in the North Atlantic are employed to study the impact, in addition to noon reports from two fleets of container ships and VLCCs. Furthermore, the benefits of using voyage optimizations for minimum fatigue damage accumulation during operation are discussed. The large difference of wave statistics is found when the ship follows routes generated by various optimization methods and the design diagram. For some westbound voyages, the voyage optimization methods can significantly decrease the ship's fatigue damage accumulations, leading to longer fatigue life.