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研究灰色GERT网络在多任务情况下的费用优化问题。当任务网络中流动的费用变量为时间变量的函数时,针对多个存在依赖关系的任务,运用网络中的z标记探寻各任务之间的时间依赖关系,通过对弹性活动的时间安排进行调整,在保证工期不被延误的前提行下使得整个项目的费用达到优化。以某大型客机客舱环境控制系统为例,对项目中各弹性活动的完成时间和费用进行了研究。
The problem of cost optimization in gray GERT network is studied. When the cost variable flowing in the task network is a function of the time variable, the z-markers in the network are used to search for the time-dependent relationship among tasks for a plurality of tasks with dependencies. By adjusting the time schedule of the flexible activities, In ensuring the duration is not delayed under the premise of making the entire project cost optimization. Taking a large passenger cabin environment control system as an example, the completion time and cost of each flexible activity in the project are studied.