有模机配合约束的平行机台调度方法

所描述的问题为在平行机台上具有单一模具约束的调度问题,以实现最小化拖期和为目标·描述了该问题的数学模型,并提出了如下的启发式算法,依据模具成组构成工作表,在对工作指派时根据一定条件允许改变工作的指派顺序,最后运用启发式算法ＮＢＲ(ＮｅｔＢｅｎｅｆｉｔｏｆＲｅｌｏｃａｔｉｏｎ)对调度方案进行局部调整以减少拖期和·通过一个应用实例,测试了该算法的有效性·

Scheduling on the Parallel Machines with Mould Constraint

This paper addresses the problem of scheduling n grouped jobs on m identical parallel machines with objective of minimizing the sum tardiness, subject to the constraints that each model number is only one and has different matching with each machine. A heuristic approach based on list scheduling was presented. Some conditions were presented which can break the sequence of assigning jobs. This approach was tested to be satisfactory.