关键词: 人员柔性, 波动环境, 混合仿真模型, 学习遗忘效应

Abstract: Worker flexibility can bring configurable flexibility to personnel assignment and man-machine cooperation of production system,which is an effective way for production system to cope with fluctuating manufacturing environment.To analyze the influence of worker flexibility on production system under the fluctuating environment,a simulation study of worker flexibility with learning and forgetting effect was proposed.Firstly,the simulation model of production system was constructed by a hybrid modeling method based on discrete event and agent,and the model framework,the behavioral logic of producer agents and learning-forgetting model were given.Secondly,the input parameters of the simulation model were defined,and the evaluation indexes such as production cycle,system flexibility and team learning level were proposed.Then the comparative experiment scheme of simulation was designed.Finally,a typical discrete production system was selected for the simulation study of worker flexibility.The simulation results showed that improving worker flexibility would lead to a reduction of team learning level and an improvement of stability of learning level.The production cycle of the team with less flexibility was shorter under middle and low level of environment fluctuation,while that of the team with more flexibility was shorter under severe fluctuating environment.In terms of the index of system flexibility,the performance of the team with high flexibility was significantly better than that of the team with middle and low flexibility.

Key words: worker flexibility, fluctuating environment, hybrid simulation model, learning and forgetting effect