Practical Examples of Determination of Frequency of Periodical Inspection of Machinery Safety Systems

• Autorzy: Dźwiarek M.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with the problem of choosing an appropriate inspection interval for monitoring of safety related control systems in machinery. According to international standards the safety related systems are categorized according to their Safety Integrity Levels or Performance Levels, depending on their reliability parameters. Extremely simple, approximate models have been proposed in order to provide practitioners without reliability training with useful tools for the determination of inspection policies. The method(s) based on the required availability of the system. The paper presents some practical examples of systems of categories B, 1 and 3, respectively. The frequencies of periodical inspection are calculated for: system monitoring closure of the door, behind which a dangerous element moves slowly, system of monitoring the access door on the automated production line and system, in which a light curtain is employed to monitor the access to the dangerous zone of an automatic assembly machine.

Słowa kluczowe

EN

safety of machine; safety related parts of control system; functional safety; periodical inspection

PL

bezpieczeństwo pracy maszyny; kontrola okresowa; bezpieczeństwo funkcjonalne

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2012
• Tom: Vol. 6, no. 2
• Strony: 33--37
• Opis fizyczny: Bibliogr. 9 poz., Rys.

Twórcy

autor

Dźwiarek M.

• Central Institute for Labour Protection – National Research Institute, ul. Czerniakowska 16, 00-701 Warsaw, Poland,

Bibliografia

• 1. Dźwiarek, M. (2004), An analysis of Accident Caused by Improper Functioning of Machine Control Systems, International Journal of Occupational Safety and Ergonomics, Vol. 10 No. 2, 129-136.
• 2. Dźwiarek, M. (2006), Assessment of software and hardware safety of programmable control systems of machinery, In: C. Guedes Soares & E. Zio (ed.) Safety and Reliability for Managing Risk, 2325-2330, Taylor & Francis Group, London, ISBN 978-0-415-42315-2.
• 3. Dźwiarek, M. (2007), Functional safety of machinery control systems - general consideration. In: Kosmowski K. T. (ed.) Functional Safety Management in Critical Systems: 101-114, Fundacja Rozwoju Uniwersytetu Gdańskiego, ISBN 978-83-7531-006-1.
• 4. Dźwiarek, M., (2010), Basic Principles for Protective Equipment Application, In: Handbook of Occupational Safety and Health Koradecka, D., (ed.) © CRC Press, Taylor & Francis Group, LCC,ISBN 978-1-4398-0684-5, p.p. 579-592.
• 5. Dźwiarek, M., Hryniewicz, O. (2011), Periodical inspection frequency of safety related control systems of machinery – practical recommendations for the determination, In: Grall & Soares (eds.) Advances in Safety, Reliability and Risk Management, Taylor & Francis Group, London, ISBN 978-0-415-68379-1, 495 – 502.
• 6. Dźwiarek, M., Hryniewicz, O. (2012), Practical examples of determination of periodical inspection of safety related control systems of machinery (in Polish), Przegląd Elektrotechniczny 5a/2012, 290-295.
• 7. Grabowski A., Kosiński R., Dźwiarek M., (2011) Vision safety system based on cellular neural networks, Machine Vision and Applications, Vol. 22, Issue 3 (2011), 581-590.
• 8. Hryniewicz, O. H. (2008), Optimal inspection intervals for maintainable equipment, In: Matorell S., Guedes Soares C., Barnett J. (Eds.): Safety, Reliability and Risk Analysis. Theory, Methods and Applications, Vol. 1., CRC Press, Boca Raton 2008, 581-586.
• 9. Taghipour, S., Banjevic, D., Jardine, A.K.S. (2010), Periodic inspection optimization model for a complex repairable system, Reliability Engineering and System Safety, 95, 944-952.