Reliability analysis and optimization of production system for production scheduling

Abstract

Production planning and scheduling mainly solve the problems of multi-process, multi-resource scheduling and sequence optimization in the workshop. Existing production scheduling methods focus on how to minimize the production period, but production system reliability is seldom considered in the actual production scheduling strategy. Production system reliability is closely related to the state change of equipment in production system, the production stability and efficiency. Therefore, in order to ensure the reliability of the production system when planning production tasks, this paper proposes a new strategy for production scheduling. Firstly, the model of production system is conducted to analyses its reliability. Secondly, a reliability evaluation method is proposed by analysing the status of equipment in the production system. Moreover, the optimization goal of production system reliability is added to the original production scheduling goal. Finally, the optimization method is put forward and verified by an example.