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Mission Reliability Evaluation for Fuzzy Multistate Manufacturing System Based on an Extended Stochastic Flow Network
IEEE Transactions on Reliability ( IF 5.9 ) Pub Date : 2020-12-01 , DOI: 10.1109/tr.2019.2957502
Yihai He , Zhaoxiang Chen , Yixiao Zhao , Xiao Han , Di Zhou

Due to the artificial division of a machine performance state and unpredictable external working conditions, the performance and state transition strength of multistate machines (that is, their fuzzy multistate characteristic) cannot be accurately identified. Moreover, existing research on the reliability evaluation of multistate systems does not consider the operating mechanism of a manufacturing system. Therefore, this article proposes a mission reliability evaluation method for fuzzy multistate manufacturing systems based on an extended stochastic flow network (ESFN). First, from the relationship between the production task execution state, production machine degradation state, and produced product quality state, the operation mechanism of a fuzzy multistate manufacturing system is proposed, and the connotation of mission reliability is further defined. Second, an ESFN model of the multistate manufacturing system based on the operating mechanism of a fuzzy multistate manufacturing system is established. Third, on the basis of a fuzzy Markov model, the mission reliability evaluation method of the fuzzy multistate manufacturing system is proposed. Finally, a case study of the manufacturing system for producing a ferrite phase shifting unit is presented to verify the proposed approach, and a sensitivity analysis is conducted to analyze the impacts of the parameters in the proposed model.

中文翻译:

基于扩展随机流网络的模糊多态制造系统的任务可靠性评估

由于机器性能状态的人为划分和不可预测的外部工作条件,无法准确识别多状态机的性能和状态转换强度(即其模糊的多状态特性)。此外,现有的多态系统可靠性评估研究没有考虑制造系统的运行机制。因此,本文提出了一种基于扩展随机流网络(ESFN)的模糊多态制造系统的任务可靠性评估方法。首先,从生产任务执行状态、生产机器退化状态和生产产品质量状态之间的关系,提出模糊多态制造系统的运行机制,进一步明确了任务可靠性的内涵。其次,建立了基于模糊多态制造系统运行机制的多态制造系统ESFN模型。第三,基于模糊马尔可夫模型,提出了模糊多态制造系统的任务可靠性评估方法。最后,通过生产铁氧体移相单元的制造系统的案例研究来验证所提出的方法,并进行灵敏度分析以分析所提出模型中参数的影响。提出了模糊多态制造系统的任务可靠性评估方法。最后,通过生产铁氧体移相单元的制造系统的案例研究来验证所提出的方法,并进行灵敏度分析以分析所提出模型中参数的影响。提出了模糊多态制造系统的任务可靠性评估方法。最后,通过生产铁氧体移相单元的制造系统的案例研究来验证所提出的方法,并进行灵敏度分析以分析所提出模型中参数的影响。
更新日期:2020-12-01
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