多种类型投资的船队规划模型

基于多种类型投资的船队规划模型讨论杨秋平，谢新连(大连海事大学交通运输管理学院，辽宁 大连 116026)摘 要：在总结船队规划讨论方法的基础上，针对变动的市场营运环境，提出了基于多种类型船舶投资的船队规划混合整数规划模型。模型将船队短期调配使用与长期进展规划结合起来统筹分析，以追求规划期内船队现金流量的折现值最大为目标，模拟和优化了一个船队在规划期内的投资、买卖、更新和使用情况。该模型既考虑了订造新船、买卖二手船和租赁船舶等多种实际可能存在的复杂情况，又考虑了船舶营运经济状态、运力配置、企业投资能力以及决策者对讨论期后船队实物价值的重视程度等因素。以某航运公司为例进行仿真实验，对模型的有效性进行了验证。结果表明，该模型满足船队规划决策和船舶运行组织的实际需要，适用于大宗货物定线运输或班轮干线运输的船队规划问题讨论。关键词：船队规划；船舶投资；船舶调配；混合整数规划中图分类号： 文献标识码：Research on fleet planning model based on multi-type of investmentYANG Qiuping, XIE Xinlian(Transportation Management College, Dalian Maritime University, Dalian 116026, China)Abstract: After a survey of existing methods, a fleet planning mixed integer programming model based on multi-type of ship investment was developed under the fluctuant market environment. The ships deployment and fleet development were optimized in the model simultaneously to maximize the discounted value of fleet cash flow during the planning horizon. This optimization model not only considers building new ships, purchase or sale of second-hand ships, charter ships, but also takes into account many influencing factors such as the economic status of the ships, ships deployment, the investment capacity of enterprise, as well as reflects how much weight the decision makers have given to physical value of the fleet at the end of the research horizon. Lastly, effectiveness of the proposed model was demonstrated using a shipping enterprise as an example. Results indi...