不定期船连续航次燃油补给与航速优化集成调度模型

针对当下国际船用燃油价格高企，不同港口燃油价格严重分化对不定期船航次燃油补给港选择，燃油补给量确定，航次船速优化的影响，不同燃油价格对加油量与载货量的悖反效应，不同航速受燃油价格影响对耗时成本与耗油费用的平衡效用，当前航次决策对后续航次的影响，以及这些影响关系的复杂性，提出不定期船连续航次燃油补给与航速优化集成调度问题.以连续多航次利润最大为目标，运用多重嵌套期望平均值处理技术与混合整数非线性规划建模方法，构建该问题的集成调度模型.最后，通过实际案例应用与对比分析，验证本文模型的实用性和优越性.

An Integrated Scheduling Model of Refueling Schemes and Speed Optimization of Consecutive Voyages for Tramp Ships

Currently, expensive marine fuel prices and the price difference at different ports have significant effects on the refueling port selection, the refueling volume, and the speed optimization on their routes. The different fuel prices affect the trade-offs between refueling levels and cargo volume. The different shipping speeds affect the balancing effects of the time consumption costs and fuel consumption costs. The scheduling decisions also affect the subsequent voyages. Considering the complex relationships and trade-offs mentioned in the factors above, an integrated scheduling solution of refueling schemes and speed optimization of consecutive voyages for tramp ships was proposed in this paper. With the objective of maximizing the profits of consecutive multiple voyages, a multiple nested expected value processing technique with a mixed integer nonlinear programming method is designed to build the model. Finally, with practical case analysis, it is verified that the integrated scheduling model proposed in this paper has obvious practicality and benefits.