Two sequence-pattern, matching-based, flow analysis methods for multi-flowlines layout design

In optimizing the layout design of a multi-product assembly environment, the analysis of the material flow is a vital ingredient. In a multi-product production environment, products are usually grouped together into families. Products of the same family group usually involve similar operations; however, it is common to see some difference in the operations and the operational sequences among these products. The design technique for the layout of multi-product flowlines should be able to resolve the difference among the operation sequence of these products. The ideal material flow in a good layout design should be mostly in-sequence flow. In-sequence flow usually has the benefits of smaller flow distance, easier control of the production process and easier material handling. This paper proposes two flow analysis methods that are designed to provide a better flow analysis for the design of multi-products flowline. The first method adopts the traditional line structure for analysis. The second method proposes a network structure for the analysis of the material flow within the system.