工业工程
工業工程
공업공정
Industrial Engineering Journal
2015年
4期
119-126
,共8页
判定表%故障树%功能流%结构函数%故障传播
判定錶%故障樹%功能流%結構函數%故障傳播
판정표%고장수%공능류%결구함수%고장전파
decision table%fault tree%function flow%structure function%fault propagation
针对过程控制系统故障树建模问题提出了一种以步进方式求结构函数的判定表法。采取以事件为条件桩、0和1为条件项的二态判定表的方式，列举各事件所有可能的状态组合，根据每种情况下部件的相互作用演绎输出事件，然后对具有相同输出事件的事件序列求并集以排除重复事件和不相关事件，得到约简的结构函数。通过对硝酸冷却系统建模的验证，用这种方法建树的结果与原文的结果是一致的。
針對過程控製繫統故障樹建模問題提齣瞭一種以步進方式求結構函數的判定錶法。採取以事件為條件樁、0和1為條件項的二態判定錶的方式，列舉各事件所有可能的狀態組閤，根據每種情況下部件的相互作用縯繹輸齣事件，然後對具有相同輸齣事件的事件序列求併集以排除重複事件和不相關事件，得到約簡的結構函數。通過對硝痠冷卻繫統建模的驗證，用這種方法建樹的結果與原文的結果是一緻的。
침대과정공제계통고장수건모문제제출료일충이보진방식구결구함수적판정표법。채취이사건위조건장、0화1위조건항적이태판정표적방식，열거각사건소유가능적상태조합，근거매충정황하부건적상호작용연역수출사건，연후대구유상동수출사건적사건서렬구병집이배제중복사건화불상관사건，득도약간적결구함수。통과대초산냉각계통건모적험증，용저충방법건수적결과여원문적결과시일치적。
A methodology based on decision tables for the fault tree construction of the process control sys-tem is proposed, which is a step-by-step way to find the structure function.By means of binary state deci-sion tables with the condition stub of events and the condition entry of 0 and 1 , all the possible state com-binations of the events are listed.According to the interactions between parts under every circumstance, the output event can be deduced.In way of finding the union sets of the event sequences with the same consequences, the repeated events and irrelevant events can be ruled out and the reduced structure func-tion can be achieved.Verified by the fault tree modeling of nitric acid cooling system, the fault tree a-chieved in this way is consistent with the one in the original text.
