系统工程理论与实践
繫統工程理論與實踐
계통공정이론여실천
Systems Engineering—Theory & Practice
2013年
3期
733~741
,共null页
侯世旺 朱慧明 李瑞琴 同淑荣
侯世旺 硃慧明 李瑞琴 同淑榮
후세왕 주혜명 리서금 동숙영
不确定质量 模糊推理Petri网 Stateflow 诊断
不確定質量 模糊推理Petri網 Stateflow 診斷
불학정질량 모호추리Petri망 Stateflow 진단
uncertain quality abnormity; fuzzy reasoning Petri nets; Stateflow; diagnosis
模糊推理Petri网可以对制造过程不确定质量异常诊断进行有效建模,但其复杂的图形表示及模糊推理逻辑结构使模型难于进行仿真分析.通过建立模糊推理规则与Stateflow元素之间的映射关系,将模糊推理Petri网模型转换为便于仿真的Stateflow模型,模型以质量控制图异常模式数据作为输入,实现不确定质量异常诊断过程的动态展示.某工件加工过程不确定质量异常诊断的仿真结果表明,模型可以输出引发控制图实时异常的异常原因的贡献度,为异常消除提供决策支持.
模糊推理Petri網可以對製造過程不確定質量異常診斷進行有效建模,但其複雜的圖形錶示及模糊推理邏輯結構使模型難于進行倣真分析.通過建立模糊推理規則與Stateflow元素之間的映射關繫,將模糊推理Petri網模型轉換為便于倣真的Stateflow模型,模型以質量控製圖異常模式數據作為輸入,實現不確定質量異常診斷過程的動態展示.某工件加工過程不確定質量異常診斷的倣真結果錶明,模型可以輸齣引髮控製圖實時異常的異常原因的貢獻度,為異常消除提供決策支持.
모호추리Petri망가이대제조과정불학정질량이상진단진행유효건모,단기복잡적도형표시급모호추리라집결구사모형난우진행방진분석.통과건립모호추리규칙여Stateflow원소지간적영사관계,장모호추리Petri망모형전환위편우방진적Stateflow모형,모형이질량공제도이상모식수거작위수입,실현불학정질량이상진단과정적동태전시.모공건가공과정불학정질량이상진단적방진결과표명,모형가이수출인발공제도실시이상적이상원인적공헌도,위이상소제제공결책지지.
Fhzzy reasoning Petri nets (FRPNs) can model the uncertain quality abnormity diagnosis of manufacturing process effectively. But it is hard to simulate the model because of its complex graphical notation and logic structure of fuzzy reasoning. A mapping relation between the fuzzy reasoning rules and elements of Stateflow was designed, so the FRPNs model was converted into Stateflow model that can be simulated conveniently. The Stateflow model took quality abnormal pattern data of control chart as input, and showed the uncertain quality abnormity diagnosis process dynamically. Taking uncertain quality abnormity diagnosis of some workpiece as an example, the application process of proposed approach was introduced in detail. The experimental results show that this model can output the contribution degree of assignable causes to current control chart abnormity, and offers decision support for eliminating the abnormity.