Parcourir par tags

Tous les tags » Méthodes (RSS)
Risk assessment in safety of machinery
Impact of construction flaws in risk estimation parameters In the risk assessment approach as defined in the International Standard ISO 12100: 2010, risk estimation is an essential step that allows machinery designers and users to determine the level of risk, and to identify the most critical hazardous situations. Previous studies demonstrated that the numerous qualitative tools proposed to estimate risks in safety of machinery take several forms, and that many of their features can significantly influence the level of risk obtained. In this study, the impact of some of these features was assessed...
Estimation of probability of harm in safety of machinery using an investigation systemic approach and Logical Analysis of Data
In safety of machinery, estimating the probability of occurrence of harm is a recurrent problem. This paper proposes and applies a new method to estimate that probability. Information regarding accidents involving machinery that is gathered and analyzed by experts is formatted based on a systemic-inspired model using the MELITO concept. Then, Logical Analysis of Data (LAD) is used to extract knowledge automatically to characterize accidents. MELITO describes the context in which the accident has occurred, gathering information about the moment (M), equipment (E), location (L), individual (I), task...
Identifying patterns of safety related incidents in a steel plant using association rule mining of incident investigation reports
The aim of this paper is to find out the patterns of incidents in a steel plant in India. Occupational incidents occur in steel plant mainly in form of injury, near miss, and property damage or in combination. Different factors are responsible for such incidents to occur. An incident investigation scheme is proposed. Association rule mining approach is used to discover cause-and-affect patterns (rules) using 843 incidents. Thirty-five meaningful association rules are extracted using three criteria, support (S), confidence (C) and lift (L). For example, the results show that unsafe acts done by...
AHP-based methodology for selecting safety devices of industrial machinery
Safe machines make a major contribution to personnel safety on the workplace. Safety of machines is often guaranteed or enhanced by safety devices. The choice of a safety device involves multiple criteria decision making and a ranking of alternatives according to often contrasting performance measures. In this paper, a systematic methodology for selecting safety measures aimed at reducing mechanical hazards of industrial machinery is presented. The method at first includes a classification of mechanical hazards and applicable safety devices, then introduces an exhaustive list of 15 factors useful...
Un guide pour la sécurité des interventions de maintenance
Préconisations AFIM / INRS pour la maîtrise des énergies Le guide Sécurafim a été réalisé par l’Association française des ingénieurs et responsables de maintenance (AFIM) et l’INRS. Il propose une démarche pour faciliter et sécuriser les opérations de maintenance sur les équipements de travail, en rappelant les principes inhérents à la maîtrise des énergies. Il permet, d’après un modèle, la réalisation d’une fiche repère...
Sécurité des machines : modes de fonctionnement protections neutralisées
Lors de la conception des équipements de travail, la prise en compte des différents besoins d'intervention hors production est souvent difficile. Pour la faciliter, cette brochure propose d'identifier ces interventions et présente une analyse de l'accidentologie. Elle examine également les conditions de mise en oeuvre d'une intervention particulière, l'observation du processus, en proposant des principes de solutions lorsque des protections doivent être neutralisées. Ce document concerne à la fois les concepteurs de machines...
An adaptive online safety assessment method for mechanical system with pre-warning function
The safety status of a dynamic mechanical system is determined by its historical, current and future states together. Therefore the safety assessment process of such system should have dynamic and diachronic characteristics, which helps to track the dynamic states of system and predict future probable danger in advance. In order to overcome the disadvantages of traditional static safety assessment approaches, the results from which are often delayed and prone to produce false alarms, an adaptive online safety assessment method is proposed in this paper, which consists of two steps. A dynamic adaptive...
Intervenir sur les presses à imprimer - Validation d’un arbre des fautes associé aux risques mécaniques
Souhaitant établir une procédure sécuritaire pour les interventions dans les zones dangereuses des presses à imprimer, comportant de nombreux angles rentrants, l’Association sectorielle paritaire (ASP) imprimerie et activités connexes a recensé les pratiques les plus sûres pour les effectuer. La méthode de l’arbre des fautes (ou arbre de défaillance), mise à l’épreuve dans 25 entreprises du secteur, s’est avérée concluante à cet égard. L’ASP a donc fait appel à...
New U.S. standard promotes ‘prevention through design’
The occupational safety concept of prevention through design (PTD) has taken a huge step towards general implementation with the publication in the United States of a comprehensive national standard. The standard, Prevention Through Design: Guidelines for Addressing Occupational Hazards and Risks in Design and Redesign Processes, is part of a seven-year project begun in 2007 by the American Society for Safety Engineers (ASSE) and the National Institute for Occupational Safety and Health (NIOSH). It provides a detailed guide for organizations on how to implement PTD through their safety and health...
Machines industrielles : analyse expérimentale des outils d’estimation du risque
Dans cette étude, 31 outils qualitatifs servant à estimer le risque en lien avec les machines industrielles et conformes aux directives de l'ISO 14121-1:2007 ont été analysés i) en comparant leurs paramètres d'estimation du risque, et ii) en utilisant les différents outils pour estimer les risques inhérents à 20 situations dangereuses (scénarios de risque). L'étude visait à procéder à une comparaison théorique de la capacité des outils à estimer le risque et à...
Feasibility of storybuilder software tool for major hazards intelligence
The aim of this research was to investigate the feasibility of using the software tool Storybuilder version 2.0.34 (2008), developed by the Workgroup Occupational Risk Model (WORM) project in the Netherlands, for recording and analysing major hazards loss of containment (LOC) incident data as a tool to better understand how accidents happen and where prevention efforts should be focused. The ultimate aim of the project is to determine if Storybuilder can provide enhanced intelligence about major accident hazards and therefore allow better targeting of HSE intervention resources. Source : http:...
Estimation des risques machines
Recensement des méthodes et subjectivité des paramètres de l'estimation Les risques liés aux machines continuent de provoquer des accidents graves dans l'industrie. Pour y faire face, une des conditions est de concevoir des machines sûres. La première étape de la démarche de prévention en conception conduit à analyser l'ensemble des risques susceptibles d'affecter les travailleurs qui interagissent avec ces machines, à les estimer et à les évaluer, pour être ainsi en mesure de définir...

Abonnement courriel

Messages récents

Catégories

Mots-Clés (Tags)

Blogoliste

Archives