Research Initiation: Parts Routing in Flexible ManufacturingSystems

该项目的目标是开发分析模型， 研究柔性制造系统（FMS）中的零件路径。 到 在FMS中加工，一个零件通常有大量的 可供选择的路线。 这些替代路线有助于 系统的灵活性，使其能够科普随机 干扰. 因此，希望FMS中的零件路由 应该遵循适应在线状态的动态方案 该系统 动态路由方面的早期工作通过 研究路由灵活性的概念。 具体而言是 管理路由灵活性所需的在线信息将 首先被识别和信息理论的措施，“路由 熵，”将被开发来量化路由的灵活性。 基于 这种措施，路由原则，“最少减少路由 熵，”将被提出，其目的是最大限度地提高路由 在线系统的灵活性。 动态路由方案将 研究了实现这一原则，并通过 将柔性制造系统建模为一个封闭的装配网络。

The objective of this project is to develop analytical models to investigate parts routing in a flexible manufacturing system (FMS). To be processed in a FMS, a part normally has a large number of alternative routes to follow. These alternative routes contribute to the flexibility of the system, and enable it to cope with random disturbances. It is therefore desirable that parts routing in a FMS should follow a dynamic scheme which is adaptive to the on-line state of the system. Earlier work on dynamic routing is extended through studying the concept of routing flexibility. Specifically, the required on-line information for managing routing flexibility will first be identified and an information-theoretic measure, "routing entropy," will be developed to quantify routing flexibility. Based on this measure, a routing principle, "least reduction in routing entropy," will be proposed which aims at maximizing the routing flexibility in the on-line system. A dynamic routing scheme will be studied which implements this principle and is developed through modeling the FMS as a closed queueing network.