A genetic algorithms-based approach for design of manufacturing systems: an industrial application

This paper presents a design methodology and a genetic algorithm-based appr oach for redesign of a manufacturing system for a small steel pre-fabricate d building manufacturer. Through the application of celular manufacturing p rinciples, we discuss the application of the design methodology that takes a topdown approach to determine system needs and a bottom-up integrated des ign approach to develop the configurations of the manufacturing system. The integrated design approach uses a genetic algorithm and an AutoCAD interfa ce to minimize the inter and intra cell material movements during cell form ation. A selected set of solutions obtained are further analysed using disc rete event modelling and simulation. The final results presented indicate a substantial improvement in overall performance compared to the original la yout. The company has implemented a modified version of the final solution and has achieved the significant improvements in material handling and over all productivity.