Which is Better Problem in Backward Model  
Author Toshio Nakagawa

 

Co-Author(s) Xufeng Zhao;  Satoshi Mizutani

 

Abstract We consider some maintenance policies in backward model with the reversed failure rate. When the unit has failed, we consider two models: we trace back from time 0 to detect the failure time, and from time S to detect the failure time. We discusses optimal checking times for the models using finite interval model, and show the numerical examples when the failure distribution is Weibull.

 

Keywords Maintenance Policy, Checking times, Backward model, Reversed failure rate
   
    Article #:  RQD2025-106
 

Proceedings of 30th ISSAT International Conference on Reliability & Quality in Design
August 6-8, 2025