CAJ | 학술논문

大型复杂系统的事件树分析通常采用大链接方法，即将需要分析的事件树题头包含的安全功能系统的故障树模型合并转换为一棵规模较大的非单调关联故障树，然后再对其进行分析。该方法需消耗大量计算资源和时间。本文提出了一种基于德摩根展开与边界条件的事件树序列/后果故障树的建造方法，它根据分析人员的设置对每个事件树题头的成功分支进行不同精度的近似处理，以在满足工程需求的基础上提高计算速度。将该方法应用于FDS团队自主研发的概率安全/可靠性分析软件RiskA ，并采用多个国际标准例题进行了正确性验证。
대형복잡계통적사건수분석통상채용대련접방법，즉장수요분석적사건수제두포함적안전공능계통적고장수모형합병전환위일과규모교대적비단조관련고장수，연후재대기진행분석。해방법수소모대량계산자원화시간。본문제출료일충기우덕마근전개여변계조건적사건수서렬/후과고장수적건조방법，타근거분석인원적설치대매개사건수제두적성공분지진행불동정도적근사처리，이재만족공정수구적기출상제고계산속도。장해방법응용우FDS단대자주연발적개솔안전/가고성분석연건RiskA ，병채용다개국제표준례제진행료정학성험증。
In the event tree analysis of large complex system ,the fault tree model of correlative safety systems will be generally put together as a large non-coherent fault tree to be analyzed .T his is know n as the normal fault tree link method that needs vast computer resource and calculation time .A fault tree construction method for event tree sequence and consequence was developed based on Demorgan and boundary conditions . In the light of the different treatments of every function event in the event tree of this method ,the calculation can be finished fast as much as possible w hile fulfill the demand of analysis .Coding of the event tree analysis module of RiskA ,which was an integrated reliability and probabilistic safety analysis program developed by FDS Team , was finished and several practical cases were tested to prove its validity .