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Lockout/Tagout and Operational Risks in the Production Control of a Transfer Line With Passive Redundancy

[+] Author Affiliations
Behnam Emami-Mehrgani, Sylvie Nadeau, Jean-Pierre Kenné

École de technologie supérieure, Montréal, QC, Canada

Paper No. IMECE2011-62959, pp. 745-752; 8 pages
doi:10.1115/IMECE2011-62959
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 9: Transportation Systems; Safety Engineering, Risk Analysis and Reliability Methods; Applied Stochastic Optimization, Uncertainty and Probability
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5495-2
  • Copyright © 2011 by ASME

abstract

This paper presents an analytical model for the joint determination of optimal production and occupational safety for a failure prone manufacturing system consisting of three machines (two machines as passive redundancy and a third machine in series with the previous ones) producing one type of part. These machines are subject to breakdowns and repairs and the control problem is subject to non-negative constraints on work-in-processes (WIP). The decision variables are the production rate of two main machines and a standby machine. The decision variables influence the WIP levels, the inventory levels and the system’s capacity. The system capacity is assumed to be described by a finite state Markov chain. The aim of this paper is to minimize the cost of WIP, inventory while respecting occupational safety. The proposed approach is based on the combination of analytical formalism, simulation modeling, design of experiments and response surface methodology to optimize a transfer line in passive redundancy producing one part type. The usefulness of the proposed approach is illustrated through a numerical example.

Copyright © 2011 by ASME

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