基于元动作与马尔可夫链的再制造机床全状态可靠性研究  

Research on Full State Reliability of Remanufacturing Machine Tools Based on Meta Action Unit and Markov Chain

作　　者：马继召[1] 李卫民[1] 肖永茂 MA Jizhao;LI Weimin;XIAO Yongmao(Department of Mechanical&Electrical Engineering,Tangshan Vocational&Technical College,Tangshan Hebei 063000,China;Key Laboratory of Complex Systems and Intelligent Optimization of Qiannan,Duyun Guizhou 558000,China)

机构地区：[1]唐山职业技术学院机电工程系,河北唐山063000 [2]黔南州复杂系统与智能优化重点实验室,贵州都匀558000

出　　处：《机床与液压》2023年第12期226-232,共7页Machine Tool & Hydraulics

基　　金：河北省科技厅科技计划项目(17211825);河北省高等学校科学研究青年基金项目(QN2019311)。

摘　　要：确保再制造机床的可靠性是提升客户对再制造机床认可的有效途径。基于此,提出一种基于元动作与马尔可夫链的再制造机床全状态可靠性分析方法。引入元动作单元分解法,从零件级进行分析,建立再制造机床FMA树。针对再制造机床元动作单元系统的特点,对其进行全状态建模,将再制造机床运行过程分为元动作单元正常状态和故障状态,引入马尔可夫决策过程,将元动作单元状态和马尔可夫决策过程结合,建立再制造机床全状态模型,用解析法求解模型,并对可靠性进行评估。最后,以再制造机床数控转台为例进行分析,验证了该方法的有效性和可行性。Ensuring the reliability of remanufactured machine tools is an effective way to improve customers recognition to remanufactured machine tools.Based on this,a full state reliability analysis method of remanufactured machine tools based on meta action unit and Markov chain was proposed.The decomposition method of element action unit was introduced to analyze from the part level,and the FMA tree of remanufacturing machine tool was established.According to the characteristics of the remanufacturing machine tool meta action unit system,the full state modeling was carried out.The operation process was divided into the normal state and fault state of the meta action unit.The Markov decision process was introduced.The full state model of the remanufacturing machine tool was established by combining the meta action unit state and the Markov decision process.The model was solved by analytical method,and the reliability was evaluated.Finally,taking the NC turntable of remanufacturing machine tool as an example,the effectiveness and feasibility of this method were verified.

关 键 词：再制造机床 元动作单元 马尔可夫链 全状态 可靠性分析 

分 类 号：TG502.13[金属学及工艺—金属切削加工及机床]