针对自动升降车(ALV)与岸桥协调调度优化问题,基于边装边卸作业模式,考虑ALV装卸事件发生的时间序列及岸桥装卸事件时间窗约束,建立双目标混合整数规划模型.对ALV执行任务的序列进行优化,得出不同条件下最优作业序列和时间成本的比较结果,证明了该优化模型的实用性.为进一步分析上述结果,设计四组实验场景,对参数进行调整,分析参数变化的影响及模型的特征.分析结果表明:ALV的总时间成本随集装箱装卸任务数、ALV准备期长度的增加而增加,随时间窗的增大而减少,且ALV的车速越大,对于时间窗变化的适应性越强.
For the coordination scheduling optimization problems between automated lifting vehicles( ALV) and quayside container cranes,based on loading and unloading operation mode and considering the time series constraint when ALV handling events happened and the time windows constraint of quay handling events,a bi-objective mathematical formulation was proposed in view of the dual cycle-loading / unloading simultaneously in quayside operation. The operation sequences of ALVs were optimized,the compared results of the optimized as well as the time costs under different constraints were gained and the optimized practicality was proved. Four experiment scenarios were performed to further analyze those abovementioned results. Effects of parameter changes and the model features were analyzed by adjusting parameters. Comparison results show that the ALV total time costs increase with the amount of container handling task and the length of ALV preparation time,while reduce with the time windows increasing.The faster the speed of ALVs is,the more adaptations of time windows changes it gets.