An Engineering Approach for Bayes Reliability Assessment of Avionic Device

This paper studies the computation problem of Bayesian method in reliability assessment of avionic device, an engineering approach for Bayesian reliability analysis in the 2-parameter Weibull distribution is proposed to the issue. The prior distribution of failure probability is built according to the engineering experiences, based on the distribution, this approach allows constructing the joint prior distribution of Weibull parameters through random sampling as well as ascertaining the prior estimates of the mean and standard deviation at any given point, then random sampling is adopted again to obtain the joint posterior distribution of the parameters. A practical example is given as an illustration. Result shows that, this approach can simplify computation in practical applications, and it provides great reference values for later use.