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Development of Modified Evaluation and Prioritization of Risk Priority Number in FMEA
N Sellappan, K. Palanikumar
Pages - 32 - 43     |    Revised - 05-04-2013     |    Published - 30-04-2013
Volume - 7   Issue - 1    |    Publication Date - April 2013  Table of Contents
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KEYWORDS
Failure Modes, Risk Factors, Risk Priority Number, Risk Prioritization, Statistical Analysis
ABSTRACT
Failure Mode and Effects Analysis (FMEA) is a tool used for identifying, analyzing and prioritizing failure modes of a product and process. The traditional FMEA determines the risk priority of each failure mode using the risk priority number (RPN) by multiplying the ranks of the three risk factors namely the Severity (S), Occurrence (O) and Detection (D). FMEA is carried out by a team of members and the critical problem is that the team often demonstrates different opinions from one member to another. Then, there is a disagreement in ranking value for the three risk factors. In case average out of difference is considered, the different combination of three risk factors may produce an identical RPN value for different failure modes. In the present work, the modified RPN prioritization method is introduced into traditional FMEA to solve the above issue and this method is applied in the risk evaluation of water leakage in the building. Finally, the proposed method has been evaluated using statistical analysis techniques. The result indicates that the proposed method is useful for RPN evaluation and prioritization of failure modes.
CITED BY (4)  
1 Sutrisno, A., Gunawan, I., Khorshidi, H. A., & Tangkuman, S. (2015). A new modified FMEA model for ranking the risk of maintenance waste considering hierarchy of root causes and effects. International Journal of Quality Engineering and Technology, 5(3-4), 217-237.
2 Tuna, B., & Behret, H. (2015). Alliance Management Process Design with Failure Mode and Effect Analysis. In Modelling and Management of Engineering Processes (pp. 163-174). Springer Berlin Heidelberg.
3 Motlagh, M. S., & Ayazi, S. A. A Hybrid Approach for Evaluation and Prioritization of FailureModes Using Modified FMEA & FAHP.
4 Ravinder, B., & Srinivas, K. Development of Regression Model for Project Risk Prioritization of Building Construction Projects.
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Mr. N Sellappan
Salalah College of Technology - Oman
sanov18@yahoo.com
Dr. K. Palanikumar
Sri Sai Ram Institute of Technology - India


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