面向极端制造装备的液压巨系统容错技术研究  

Fault-tolerant Technique for Extreme-manufacturing Equipments Oriented Huge Hydraulic System

作　　者：于今[1] 谈苑华[1] 陈晓慈[2] 于江[2] 

机构地区：[1]重庆大学机械工程学院,重庆400030 [2]中国第二重型机械集团公司,四川德阳618013

出　　处：《组合机床与自动化加工技术》2010年第11期12-15,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技重大专项资助项目

摘　　要：针对传统的结构冗余容错和信息容错技术在液压巨系统上的应用存在着的诸多问题,提出了一种新型的液压容错方法,通过研究流体信息与系统故障的内在关系,进行故障建模;设计新型流体信息表达单元,感知系统故障信息,进行逻辑处理,将这些故障信息表达成机械信号、液压信号或者电信号,直接实现功率级容错;设计具有"安全模式"的液压容错单元,使液压控制元件由单一功能变成复合受控功能。这种新型液压容错方法的应用可以解决液压巨系统的整体容错问题,并且能最大限度的简化液压系统结构。Considering there appearing various problems in the huge hydraulic system by using traditional redundancy fault tolerance technology and fault-tolerant information technology,the author puts forward a new method of hydraulic fault tolerant.Researching the internal relationship of fluid information and system fault,fault modeling can be performed;A new type of fluid information expression unit will be designed to perceive and process the fault information of the system,then these information can be expressed as mechanical signal,hydraulic signal or electrical signal which can be used at power level to implement fault tolerance;The hydraulic fault-tolerant control units with safe mode will be designed to change the control elements from single function to multiple function.The application of the new method can solve the questions of the whole fault tolerance in the huge hydraulic system,moreover,with it the structure of hydraulic system can be greatly simplified.

关 键 词：极端制造 液压巨系统 可靠性 容错 流体故障知识岛 

分 类 号：TH137[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]