Title :
Decision theory in maintenance strategy of standby system with gamma-distribution repair-time
Author :
De Almeida, Adiel Teixeira ; Bohoris, George A.
Author_Institution :
Companhia Hidro Eletrica do Sao Francisco, Recife, Brazil
fDate :
6/1/1996 12:00:00 AM
Abstract :
This study develops an application for a previous decision-model analyzed via decision theory. The previous paper identifies a need for additional applications in that decision-model. This study introduces a gamma repair-time distribution with shape-parameter 2. The uncertainty of the gamma scale-parameter is accounted for in a Bayes approach, eliciting expert prior belief. Conflicting requirements of system availability and cost are combined through a multi-attribute utility function. A numerical application with sensitivity analysis, illustrates the use of the model
Keywords :
Bayes methods; decision theory; failure analysis; gamma distribution; maintenance engineering; redundancy; reliability theory; sensitivity analysis; decision model; expert prior belief; gamma-distribution repair-time; maintenance strategy; multi-attribute utility function; numerical application; sensitivity analysis; shape-parameter 2; standby system; Chromium; Cost function; Decision theory; Delay effects; Hazards; Probability distribution; Sensitivity analysis; Shape; Uncertainty; Utility theory;
Journal_Title :
Reliability, IEEE Transactions on
