Traditional and Multi-factor Decision Making based FMECA through Preference Selection Index Method for Continuous Process Industry


Author (s):

  1. Dr. M. G. Bhatt, Shantilal Shah Engineering College, Bhavnagar, Gujarat, INDIA
  2. Nilesh Pancholi, Gujarat Technological University, Ahmedabad, nhpancholi@gmail.com

Abstract:

This paper highlights comparative results of traditional FMECA and multi-factor decision making approach based on "Preference Selection Index (PSI) Method" for aluminium wire rolling mill plant. The suggested study is carried out to overcome the limitations of FMECA by assigning the scores against each failure modes in crisp values to evaluate the criticalities of the failure modes without uncertainty. The primary findings of the paper is that sudden impact on the rolls seems to be most critical failure cause and high contact stresses due to rolling & sliding action of mesh to be least critical failure cause. It is suggested to modify the current control practices with proper maintenance strategy based on achieved maintainability criticality index (MCI). The outcome of study will be helpful in deriving optimized maintenance plan to maximize the performance of continuous process industry.

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