The development of the theory and application of Monte Carlo Markov Chain methods, vast improvements
in computational capabilities, and emerging software alternatives have made it possible for more
frequent use of Bayesian methods in reliability applications. Bayesian methods, however, remain controversial
in reliability (and some other applications) because of the concern about from where the needed prior
distributions should come. On the other hand, there are many applications where engineers have solid prior
information on certain aspects of their reliability problems based on physics of failure or previous experience
with the same failure mechanism. For example, engineers often have useful but imprecise knowledge about
the e↵ective activation energy in a temperature-accelerated life test or about the Weibull shape parameter
in the analysis of fatigue-failure data. In such applications, the use of Bayesian methods is compelling, as
it o↵ers an appropriate compromise between assuming that such quantities are known and assuming that
nothing is known. In this paper, we compare the use of Bayesian methods with the traditional maximumlikelihood
methods for a group of examples, including the analysis of field data with multiple censoring,
accelerated life-test data, and accelerated degradation-test data.
The development of the theory and application of Monte Carlo Markov Chain methods, vast improvementsin computational capabilities, and emerging software alternatives have made it possible for morefrequent use of Bayesian methods in reliability applications. Bayesian methods, however, remain controversialin reliability (and some other applications) because of the concern about from where the needed priordistributions should come. On the other hand, there are many applications where engineers have solid priorinformation on certain aspects of their reliability problems based on physics of failure or previous experiencewith the same failure mechanism. For example, engineers often have useful but imprecise knowledge aboutthe e↵ective activation energy in a temperature-accelerated life test or about the Weibull shape parameterin the analysis of fatigue-failure data. In such applications, the use of Bayesian methods is compelling, asit o↵ers an appropriate compromise between assuming that such quantities are known and assuming thatnothing is known. In this paper, we compare the use of Bayesian methods with the traditional maximumlikelihoodmethods for a group of examples, including the analysis of field data with multiple censoring,accelerated life-test data, and accelerated degradation-test data.
การแปล กรุณารอสักครู่..