Redundancy Allocation in Multi-indenture Systems with Common Cause Failures  
Author Qian Qian Zhao

 

Co-Author(s) Won Young Yun

 

Abstract This paper deals with a redundancy allocation optimization problem (RAOP) for multi-indenture systems under common cause failures (CCF). A beta factor model for CCF is applied to predict the system reliability in multiindenture systems. A genetic algorithm is used to find the optimal redundant objects and redundant numbers to maximize the system reliability under a design cost constraint. The sensitive analysis is performed to investigate the effect of model parameters on the objective function and the optimal solutions. The effects of CCF on the system reliability between module-level redundancy and component-level redundancy are compared in numerical examples.

 

Keywords multi-indenture system, common cause failures (CCF); beta factor model, inspection policy; redundancy optimization; system reliability
   
    Article #:  RQD26-205
 

Proceedings of 26th ISSAT International Conference on Reliability & Quality in Design
Virtual Event

August 5-7, 2021