Fuzzy Overall Equipment Effectiveness (FOEE): capturing performance fluctuations through LR Fuzzy numbers

The paper focuses on the Overall Equipment Effectiveness (OEE), a performance indicator that is extensively used in the industry. The aim is to extend the capabilities of the OEE, so as to capture the day-to-day fluctuations to which manufacturing performances are subjected. To this aim, manufacturing losses are decomposed into elementary causes and modelled as LR fuzzy numbers. Next, in order to compute the Fuzzy Overall Equipment Effectiveness (FOEE), single losses are aggregated using the ‘fuzzy transformation model’. This approach limits the fuzzy overestimation phenomenon and assures both results’ accuracy and robustness. An industrial application, part of a lean project carried on by an important Italian manufacturing firm, is finally presented. Results are encouraging, since the FOEE made it possible to trace back the share of the overall fluctuations that is ascribable to each cause of loss. In this way, it provided the basis for setting improvement priorities and directed the lean team toward the selection of appropriate corrective actions.

[1]  Samuel H. Huang,et al.  Overall throughput effectiveness (OTE) metric for factory-level performance monitoring and bottleneck detection , 2007 .

[2]  L. Pintelon,et al.  A framework for maintenance concept development , 2002 .

[3]  Marcello Braglia,et al.  A fuzzy multi-criteria approach for critical path definition , 2009 .

[4]  Abraham Kandel,et al.  A new approach for defuzzification , 2000, Fuzzy Sets Syst..

[5]  P. Garengo,et al.  The development of SME managerial practice for effective performance management , 2013 .

[6]  Marcello Braglia,et al.  Overall equipment effectiveness of a manufacturing line (OEEML) , 2008 .

[7]  Ratapol Wudhikarn.  Improving overall equipment cost loss adding cost of quality , 2012 .

[8]  S.E.G. da Costa,et al.  Uses and misuses of the 'overall equipment effectiveness' for production management , 2002 .

[9]  A. J. De Ron,et al.  OEE and equipment effectiveness: an evaluation , 2006 .

[10]  N. Anantharaman,et al.  Evaluation of overall line effectiveness (OLE) in a continuous product line manufacturing system , 2006 .

[11]  Giulio D'Agostini,et al.  BAYESIAN REASONING IN DATA ANALYSIS: A CRITICAL INTRODUCTION , 2003 .

[12]  Louis Raymond,et al.  Enabling the strategic development of SMEs through advanced manufacturing systems: A configurational perspective , 2006, Ind. Manag. Data Syst..

[13]  Panagiotis H. Tsarouhas,et al.  Evaluation of overall equipment effectiveness in the beverage industry: a case study , 2013 .

[14]  Marcello Braglia,et al.  Extending value stream mapping: the synchro-MRP case , 2013 .

[15]  P. Garengo,et al.  Lean manufacturing in developing countries: evidence from Indian SMEs , 2012 .

[16]  Ronald R. Yager,et al.  Ranking Fuzzy Numbers Using a-Weighted Valuations , 2000, Int. J. Uncertain. Fuzziness Knowl. Based Syst..

[17]  Manoj Kumar Tiwari,et al.  Implementing the Lean Sigma framework in an Indian SME: a case study , 2006 .

[18]  Michael Hanss,et al.  On the reliability of the influence measure in the transformation method of fuzzy arithmetic , 2004, Fuzzy Sets Syst..

[19]  S. Skelboe.  Computation of rational interval functions , 1974 .

[20]  G. Marsaglia.  Ratios of Normal Variables and Ratios of Sums of Uniform Variables , 1965 .

[21]  Marcello Braglia,et al.  Stochastic overall equipment effectiveness , 2011 .

[22]  Andrzej Jaszkiewicz,et al.  Fuzzy project scheduling system for software development , 1994 .

[23]  Michael Hanss,et al.  The transformation method for the simulation and analysis of systems with uncertain parameters , 2002, Fuzzy Sets Syst..

[24]  P. Hines,et al.  Learning to evolve: A review of contemporary lean thinking , 2004 .

[25]  Marcello Braglia,et al.  Uncertainty in value stream mapping analysis , 2009 .

[26]  Peter Muchiri,et al.  Performance measurement using overall equipment effectiveness (OEE): literature review and practical application discussion , 2008 .

[27]  Marcelo Simoes.  Introduction to Fuzzy Control , 2003 .

[28]  G. Facchinetti,et al.  Note on ranking fuzzy triangular numbers , 1998 .

[29]  Michael Hanss,et al.  Applied Fuzzy Arithmetic: An Introduction with Engineering Applications , 2004 .

[30]  George J. Klir,et al.  Fuzzy arithmetic with requisite constraints , 1997, Fuzzy Sets Syst..

[31]  Richard Greatbanks,et al.  Overall equipment effectiveness as a measure of operational improvement – A practical analysis , 2000 .

[32]  新郷 重夫,et al.  A revolution in manufacturing : the SMED system , 1985 .

[33]  Jörn-Henrik Thun,et al.  Supporting total productive maintenance by mobile devices , 2008 .

[34]  Mahmoud M. Yasin,et al.  A literature review of maintenance performance measurement: A conceptual framework and directions for future research , 2011 .