船舶堆场中临时分段调度方案的优劣影响着调度的效率和成本。本文以临时分段的调度过程为优化对象,以平板车的移动距离为优化目标建立数学模型。通过制定动态的临时分段调度规则和超长分段调度规则,充分利用堆场中的空存储单元,最终确定一个较优的临时分段调度方案。同时利用任务合并对堆场调度的任务序列进行优化,从而减少调度过程中临时分段的数量。最后,利用某船厂的实际数据对模型和调度规则进行实例验证和数值分析,结果表明,所制定的调度规则可以优化堆场调度方案,提高堆场空间资源利用率和调度效率。
The scheduling scheme of the obstructive blocks in the shipyard determined the efficiency and the cost of the stockyard scheduling operations. This paper took the scheduling process of the obstructive blocks as an optimization object. A mathematical model was established with the aim of minimizing the moving distance of the flat transporter. A dynamic scheduling rule for the obstructive blocks and the ultra-long blocks were proposed to make full use of the empty storage units, and which can ultimately obtain an optimal scheduling of the obstructive blocks. Meanwhile task-merging was used to optimize the sequence of the stockyard scheduling,thereby reducing the number of obstructive blocks during the scheduling process. Application data were acquired from a shipyard to validate the model and the scheduling rules,and the results showed that the proposed rules were effective to obtain a better stockyard scheduling scheme,and also improved the utilization of the space resource and scheduling efficiency.