注塑成型过程温度启动过渡状态的性能监测与故障诊断  

Performance Monitoring and Fault Diagnosis of Start-up Dynamics in Injection Molding Process

作　　者：陆宁云[1] 刁英湖[1] 杨毅[2] 高福荣[2] 

机构地区：[1]南京航空航天大学自动化学院,南京210016 [2]香港科技大学化工系

出　　处：《化工自动化及仪表》2010年第5期47-49,53,共4页Control and Instruments in Chemical Industry

基　　金：国家自然科学基金资助项目(20806040);教育部博士点基金资助项目(20070287047)

摘　　要：注塑成型过程启动阶段具有复杂动态特性,更容易遭受未知扰动、误操作甚至故障的危害。针对注塑启动阶段的机筒温度变量,建立了二维动态多元统计模型,实现了注塑启动性能的实时监测和故障诊断;并以常见的加热线圈以及传感器故障为例,详细讨论了方法的应用效果以及在安全生产方面的应用前景。Injection molding process exhibits complicated process behaviors during start-ups.It is prone to subject to various disturbances,process malfunctions or even faults in that period.An online performance monitoring and fault diagnosis method was applied to injection molding to save production resources and improve production efficiency.Two-dimensional dynamic multivariable statistical model was built for barrel temperatures,based on which,the online monitoring and fault diagnosis method could effectively detect and identify the commonly occurred heating coil faults and sensor faults during process start-ups.

关 键 词：注塑成型过程 启动阶段 性能监测 故障诊断 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]