Design and Simulation of Workshop Layout Reconstruction Based on Flexsim and Multi-objective Genetic Algorithm

摘要

Research the problem of dynamic layout of equipment with multiple constraints in reconfigurable workshop. The logistics transport and restructuring of the layout cost as an optimization target. Transforming the dynamic layout problem into a static layout problem in single production cycle. Utilizing the theory of virtual manufacturing and computer simulation to construct a multi - constrained optimization model for dynamic layout of multiple devices with different equipments' acreage. Adopting new genetic algorithm with multi - fitness function and random competition roulette selection strategy to this NP problem that overcomed the shortcomings of a single fitness function that does not guarantee optimal optimization and can not provide multiple strategies for production risk decisions. This approach improved the convergence rate and obtained varieties of feasible solutions from multi-angle model. The effectiveness of the method is verified by examples and Flexsim simulation.