On the numerical solution of fault trees

被引：14

作者：

Demichela, M

Piccinini, N

Ciarambino, I

Contini, S

机构：

[1] Politecn Torino, Dipartimento Sci Mat & Ingn Chim, SAfeR, Ctr Sicurezza Affidabil & Rischi, I-10129 Turin, Italy

[2] Commiss European Communities, Joint Res Ctr, I-21020 Ispra, VA, Italy

来源：

RELIABILITY ENGINEERING & SYSTEM SAFETY | 2003年 / 82卷 / 02期

关键词：

fault tree; numerical solution of fault tree; INH logic gates; NOT logic gate;

D O I：

10.1016/S0951-8320(03)00142-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper an account will be given of the numerical solution of the logic trees directly extracted from the Recursive Operability Analysis. Particular attention will be devoted to the use of the NOT and INH logic gates for correct logical representation of Fault Trees prior to their quantitative resolution. The NOT gate is needed for correct logical representation of events when both non-intervention and correct intervention of a protective system may lead to a Top Event. The INH gate must be used to correctly represent the time link between two events that are both necessary, but must occur in sequence. Some numerical examples will be employed to show both the correct identification of the events entering the INH gates and how use of the AND gate instead of the INH gate leads to overestimation of the probability of occurrence of a Top Event. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：141 / 147

页数：7