The FMEDA approach to improve the safety assessment according to the IEC61508

被引：22

作者：

Catelani, M. ^{[1
]}

Ciani, L. ^{[1
]}

Luongo, V. ^{[1
]}

机构：

[1] Univ Florence, Dept Elect & Telecommun, I-50139 Florence, Italy

来源：

MICROELECTRONICS RELIABILITY | 2010年 / 50卷 / 9-11期

关键词：

RELIABILITY; STANDARDS;

D O I：

10.1016/j.microrel.2010.07.121

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

According to the Standard IEC61508, the paper presents a case study concerning the evaluation of both the safe failure fraction (SFF) and the probability of failure on demand (PFD) for a complex system. After a preliminary presentation of the criteria for the safety integrity level (SIL) verification, the work focuses the attention on the method to achieve the PFD. In particular, an approach based on failure modes, effects and diagnostic analysis (FMEDA) is proposed and then a comparison with the approach described in the Standard. The paper aims to clarify both the knowledge and the application of the IEC61508 and proposes a technique to satisfy the hardware safety integrity requirements. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1230 / 1235

页数：6

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