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Journal of Failure Analysis and Prevention

, Volume 17, Issue 6, pp 1149–1163 | Cite as

Analytic Critical Flow Method (ACFM): A Reliability Allocation Method Based on Analytic Hierarchy Process

  • Gianpaolo Di Bona
  • Antonio Forcina
Technical Article---Peer-Reviewed
  • 157 Downloads

Abstract

RAMS is an acronym for reliability, availability, maintainability and safety. These four properties concern the application of important methodologies to design and manage complex systems. In the present research, starting from the analysis of several literature reliability allocation techniques, a reliability allocation method has been implemented called analytic critical flow method (ACFM). Critical flow method is a reliability allocation method for series-parallel configurations, based on failure analysis of each unit of the system. The new approach is based on critical flow method, whose results are matched with the analytic hierarchy process multicriteria method. The result is a dynamic model that combines the advantages of the allocation method and the multicriteria approach. The need to develop the ACFM is the outcome of a careful analysis of the current military and commercial approaches. In particular, no literature method takes into account to assign a different level of significance (weight) to the different units of the system, simultaneously to the considered factors. The proposed approach has been applied and compared with other traditional methods on an aerospace prototype (series-parallel configuration), where the reliability allocation process is rigorous. The results demonstrate the effectiveness of the new approach and its ability to overcome the criticalities highlighted in literature.

Keywords

Failure rate Failure analysis Series-parallel configurations Analytic hierarchy process Decision making Aerospace accidents Prediction analysis 

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Copyright information

© ASM International 2017

Authors and Affiliations

  1. 1.Department of Civil and Mechanical EngineeringUniversita degli Studi di Cassino e del Lazio MeridionaleCassinoItaly
  2. 2.University of Naples “Parthenope”NaplesItaly

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