The invention provides a ship navigation performance optimization method and system considering uncertain variables, and the method comprises the steps: calculating ship oil consumption and ship energy efficiency operation indexes based on obtained ship operation parameters and port parameters, calculating an actual navigation speed value interval through employing a 3sigma criterion, taking the actual navigation speed value interval as a constraint condition, and carrying out the optimization of the ship navigation performance. Establishing a target function based on a preset weight coefficient, the ship oil consumption and the ship energy efficiency operation index; the method comprises the following steps: setting navigation intervals and weather intervals based on a time dimension, further calculating a weather array corresponding to each navigation interval by adopting a specific calculation method, and then setting an initial actual navigation speed of a certain navigation interval in an actual navigation speed value interval; and taking the initial actual navigational speed and the weather array corresponding to the navigation interval as the initial solution of the simulated annealing algorithm, and finally calculating the optimal navigational speed of each navigation interval by adopting the simulated annealing algorithm, thereby realizing the optimization of the ship navigation performance and effectively improving the ship navigation performance.
本发明提供了一种考虑不确定性变量的船舶航行性能优化方法及系统,先基于获取的船舶运行参数和港口参数分别计算出船舶油耗和船舶能效营运指数,并采用3sigma准则计算出实际航速取值区间,再以实际航速取值区间为约束条件,基于预设的权重系数、船舶油耗以及船舶能效营运指数建立目标函数;基于时间维度设定航行区间和天气区间,进而采用特定的计算方法计算出每个航行区间对应的天气数组,然后在实际航速取值区间内设定某个航行区间的初始实际航速,并将初始实际航速和该航行区间对应的天气数组作为模拟退火算法的初始解,最后采用模拟退火算法计算出每个航行区间的最优航速,进而实现船舶航行性能的优化,有效提高了船舶的航行性能。
Ship navigation performance optimization method and system considering uncertainty variables
一种考虑不确定性变量的船舶航行性能优化方法及系统
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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