A simulation analysis of the effectiveness of drum-buffer-rope scheduling in furniture manufacturing
Computers and Industrial Engineering
A genetic algorithm for flowshop sequencing
Computers and Operations Research - Special issue on genetic algorithms
Focused management in military organizations: an avenue for future industrial engineering
ICC&IE-94 Selected papers from the 16th annual conference on Computers and industrial engineering
Computers and Industrial Engineering
A neural-net approach to real time flow-shop sequencing
Computers and Industrial Engineering
Business Dynamics
Two-stage hybrid flow shop with precedence constraints and parallel machines at second stage
Computers and Operations Research
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Drum-Buffer-Rope-based production planning and control (PPC) approaches provide production managers with effective tools to manage production disruptions and improve operational performance. The corner stone of these approaches is the proper selection of time-buffers which are considered as exogenously defined constant. However, the majority of real-world manufacturing systems are characterized by the dynamic change of demand and by stochastic production times. This fact calls for a dynamic approach in supporting the decision making on time-buffer policies. To this end, we study a capacitated, single-product, three-operation, flow-shop manufacturing system. We propose a dynamic time-buffer control mechanism for short/medium-term PPC with adaptive response to demand changes and robustness to sudden disturbances in both internal and external shop environment. By integrating the control mechanism into the flow-shop system, we develop a system dynamics model to support the decision-making on time-buffer policies. Using the model, we study the effect of policies on shop performance by means of analysis of variance. Extensive numerical investigation reveals the insensitivity of time-buffer policies to key factors related to demand, demand due date and operational characteristics such as protective capacity and production times.