Feasibility study and uncertainties in the validation of an existing safety-related control circuit with the ISO 13849-1:2006 design standard

Sabrina Jocelyn; James Baudoin; Yuvin Chinniah; Philippe Charpentier

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Feasibility study and uncertainties in the validation of an existing safety-related control circuit with the ISO 13849-1:2006 design standard

机译：根据ISO 13849-1：2006设计标准验证现有安全相关控制电路的可行性研究和不确定性

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In industry, machine users and people who modify or integrate equipment often have to evaluate the safety level of a safety-related control circuit that they have not necessarily designed. The modifications or integrations may involve work to make an existing machine that does not comply with normative or regulatory specifications safe. However, how can a circuit performing a safety function be validated a posteriori? Is the validation exercise feasible? What are the difficulties and limitations of such a procedure? The aim of this article is to answer these questions by presenting a validation study of a safety function of an existing machine. A plastic injection molding machine is used for this study, as well as standard ISO 13849-1:2006. Validation consists of performing an a posteriori (post-design) estimation of the performance level of the safety function. The procedure is studied for two contexts of use of the machine: in industry, and in laboratory. The calculations required by the ISO standard were done using Excel, followed by SIStema software. It is shown that, based on the context of use, the estimated performance level was different for the same safety-related circuit. The variability in the results is explained by the assumptions made by the person undertaking the validation without the involvement of the machine designer.

机译：在工业上，机器用户和修改或集成设备的人员通常必须评估他们不一定设计的安全相关控制电路的安全级别。修改或集成可能涉及使不符合规范或法规要求的现有机器安全的工作。但是，如何才能验证执行安全功能的电路的后验呢？验证活动可行吗？这种程序有哪些困难和局限性？本文旨在通过对现有机器的安全功能进行验证研究来回答这些问题。本研究使用塑料注射成型机以及标准ISO 13849-1：2006。验证包括对安全功能的性能水平进行后验（设计后）估计。针对机器的两个使用环境研究了该程序：在工业界和在实验室中。 ISO标准要求的计算是使用Excel完成的，然后是SIStema软件。结果表明，基于使用的上下文，对于相同的安全相关电路，估计的性能水平有所不同。结果的可变性由进行验证的人员在没有机器设计人员参与的情况下所做的假设来解释。

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来源
《Reliability Engineering & System Safety》 |2014年第1期|104-112|共9页
作者
Sabrina Jocelyn; James Baudoin; Yuvin Chinniah; Philippe Charpentier;
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作者单位

Institut de recherche Robert-Same en sante et en securite du travail (IRSST), 505 boul, de Maisonneuve Ouest, Montreal, Quebec H3A 3C2, Canada;

Institut de recherche et de securite (INRS). Rue du Morvan-CS 60027, 54519 Vandceuvre-les-Nancy Cedex, France;

Polytechnique Montreal, 2500 chemin de Polytechnique, Montreal, Quebec H3T 1J4, Canada;

Institut de recherche et de securite (INRS), Rue du Morvan-CS 60027, 54519 Vandceuvre-les-Nancy Cedex, France;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Machine; Control system; Failure; Safety function; Performance level;

机译：机;控制系统;失败;安全功能;性能水平;

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2. A new methodology for facilitating the design of safety-related parts of control systems in machines according to ISO 13849:2006 standard [J] . Porras-Vazquez Alberto, Romero-Perez Julio-Ariel Reliability Engineering & System Safety . 2018,第juna期

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Feasibility study and uncertainties in the validation of an existing safety-related control circuit with the ISO 13849-1:2006 design standard

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