|本期目录/Table of Contents|

[1]赵智聪,靳江红,王庆,等.基于多故障冲击模型和故障树的PFDavg计算方法研究*[J].中国安全生产科学技术,2021,17(4):42-46.[doi:10.11731/j.issn.1673-193x.2021.04.007]
　ZHAO Zhicong,JIN Jianghong,WANG Qing,et al.Research on calculation method of PFDavg based on multiple error shock model and fault tree[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(4):42-46.[doi:10.11731/j.issn.1673-193x.2021.04.007]
点击复制

基于多故障冲击模型和故障树的PFDavg计算方法研究*
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年4期
页码:
42-46
栏目:
学术论著
出版日期:
2021-04-30

文章信息/Info

Title:
Research on calculation method of PFDavg based on multiple error shock model and fault tree
文章编号:
1673-193X(2021)-04-0042-05
作者:
赵智聪; 靳江红; 王庆; 王妤甜
（1.首都经济贸易大学 管理工程学院，北京 100071;
2.北京市劳动保护科学研究所，北京 100054）
Author(s):
ZHAO Zhicong;  JIN Jianghong;  WANG Qing;  WANG Yutian
(1.School of Management and Engineering,Capital University of Economics and Business,Beijing 100071,China;
2.Beijing Municipal Institute of Labor Protection,Beijing 100054,China)
关键词:
安全仪表功能(SIF); 要求时危险失效平均概率（PFDavg）; 多重共因失效; 多故障冲击模型（MESH）; 故障树模型（FTA）
Keywords:
safety instrument function (SIF);  average probability of dangerous failures on demand (PFDavg);  multiple common cause failure;  multiple error shock model (MESH);  fault tree analysis (FTA)
分类号:
X913
DOI:
10.11731/j.issn.1673-193x.2021.04.007
文献标志码:
A
摘要:
为提高安全仪表功能（SIF）要求时危险失效平均概率（PFDavg）计算结果的精确度，提出1种能准确计算SIF在多重共因失效影响下的PFDavg的数学模型。建立包含多重共因失效的系统失效故障树，然后利用多故障冲击模型区分普通失效率和多重共因失效率，根据瞬时不可用率的定义和故障树的逻辑关系计算出SIF的瞬时不可用率；基于PFDavg的定义，计算出SIF的PFDavg，以某化工企业SIF为例进行验证。结果表明：方法有效考虑了多重共因失效对SIF的影响，通过模型计算出SIF的PFDavg大于基于马尔可夫（Markov）方法的软件计算结果，但二者处于相同的数量级。模型在评估SIF的PFDavg时比传统方法偏保守，能提高安全仪表功能的安全性。
Abstract:
In order to improve the accuracy of the calculation results of average probability of dangerous failures on demand (PFDavg) in the safety instrument function (SIF),a mathematical model for accurately calculating the PFDavg of SIF under the influence of multiple common cause failures was proposed.A fault tree of system failure containing multiple common cause failures was established.Then,the multiple error shock model (MESH) was used to distinguish the common failure rates from multiple common cause failure rates,and the instantaneous unavailability of SIF was calculated according to the definition of instantaneous unavailability and the logical relationship of fault tree.According to the definition of PFDavg,the PFDavg of SIF was calculated and validated by taking the SIF of a chemical enterprise as an example.The results showed that the method effectively considered the influence of multiple common cause failures on SIF,and the PFDavg of SIF calculated by the model was greater than that calculated by the software based on Markov method,but they were in the same order of magnitude.The model was more conservative than the traditional method in evaluating the PFDavg of SIF,which can improve the safety of SIF.The failure probability of component caused by each fault impact should be further studied precisely.

参考文献/References:

［1］全国工业过程测量控制和自动化标准化技术委员会.电气/电子/可编程电子安全相关系统的功能安全:GB/T 20438—2017 ［S］.北京:中国标准出版社,2017.
［2］张斌,阳宪惠,康荣学.安全完整性水平评估中考察参数不确定性影响的一种方法［J］.中国安全科学学报,2008，18(8):135-139. ZHANG Bin,YANG Xianhui,KANG Rongxue.A method to evaluate parameter uncertainty impact on safety integrity level evaluation ［J］.China Safety Science Journal,2008，18(8):135-139.
［3］李宏浩,付建民,李成美,等.基于Monte Carlo与Markov法参数不确定性条件下SIL评估［J］.中国安全生产科学技术,2016,12(9):109-113. LI Honghao,FU Jianmin,LI Chengmei,et al.SIL evaluation with parameters uncertainty based on Monte Carlo and Markov methods ［J］.Journal of Safety Science and Technology,2016,12(9):109-113.
［4］李荣强,姜巍巍,曹德舜.基于典型冗余结构的安全仪表系统可靠性对比分析［J］.安全、健康和环境,2015,15(8):11-13.
［5］马志国,刘旭东,夏利民,等.核电站保护系统平均需求失效概率计算方法研究分析［J］.自动化博览,2019,36(3):62-66.
［6］李军丽,张友鹏.基于动态故障树的计算机联锁系统安全性及性能分析研究［J］.铁道科学与工程学报,2019,16(6):1543-1552. LI Junli,ZHANG Youpeng.Research on safety and performance analysis of computer based interlocking system based on dynamic fault tree analysis ［J］ Journal of Railway Science and Engineering,2019,16(6):1543-1552.
［7］夏阳光,陶刚,张礼敬.基于FFTA-LOPA的化工装置安全仪表系统SIL确定方法［J］.中国安全生产科学技术,2016,12(6):142-146. XIA Yangguang,TAO Gang,ZHANG Lijing.Study on determination method of SIL for safety instrumented system of chemical plant based on FFTA ［J］.Journal of Safety Science and Technology,2016,12(6):142-146.
［8］岑康,张翌东,黄夏雨,等.考虑人因可靠性的安全仪表功能SIL验证方法研究［J］.中国安全生产科学技术,2020,16(3):31-36. CEN Kang,ZHANG Yidong,HUANG Xiayu,et al.Study on verification method of safety integrity level (SIL) for safety instrumented function considering human reliability ［J］.Journal of Safety Science and Technology,2020,16(3):31-36.
［9］王锴,徐皑冬,王宏.基于差异化设计技术的安全仪表系统共因失效分析方法研究［J］.中国安全科学学报,2013,23(3):91-96. WANG Kai,XU Aidong,WANG Hong.Research of common cause failure analysis of safety instrumented systems based on design diversity ［J］.China Safety Science Journal,2013,23(3):91-96.
［10］CHEBILA M.Generalized markovian consideration of common cause failures in the performance assessment of safety instrumented systems ［J］.Process Safety and Environmental Protection,2020,141:28-36.
［11］MECHRI W,SIMON C,OTHMAN K B.Uncertainty analysis of common cause failure in safety instrumented systems ［J］.Journal of Risk & Reliability,2011,225(4):450-460.
［12］阳宪惠,郭海涛.安全仪表系统的功能安全［M］.北京：清华大学出版社,2007.
［13］Goble W M.控制系统的安全评估与可靠性［M］.白焰，董玲，杨国田译.北京：中国电力出版社，2008.
［14］HOKSTAD P,BODSBERG L.Reliability model for computerized safety systems ［C］//Proceedings of Annual Reliability and Maintainability Symposium,Atlanta:IEEE,1989:435-440.
［15］全国工业过程测量控制和自动化标准化技术委员会.电气/电子/可编程电子安全相关系统的功能安全第6部分:GB/T 20438.2和GB/T 20438.3的应用指南:GB/T 20438.6—2017 ［S］.北京:中国标准出版社,2017.

相似文献/References:

备注/Memo

备注/Memo:
收稿日期： 2021-01-25
* 基金项目： “十三五”国家重点研发计划项目（2018YFC0808904）
作者简介： 赵智聪，硕士研究生，主要研究方向为控制系统的功能安全。
通信作者： 靳江红，博士，研究员，主要研究方向为控制系统的功能安全与信息安全、工业防爆技术及安全风险评估。
更新日期/Last Update: 2021-05-09