Comparison of reliability models

Constantin Târcolea, Adrian Paris, Cristian Andreescu
Many stochastic models have been used in solving reliability problems, motivated by a high degree of variability or randomness of the studied phenomena. Therefore different types of stochastic laws derived from the basic distributions are proposed for modelling a hazard-rate function too. The main contribution of the present paper is to proposed new adaptive hazard rate functions, derived from classical models. A numerical example is provided for the introduced models and comparison is also
more » ... parison is also discussed. It can be seen that these new adaptive functions are competitive models for describing the bathtub-shaped failure rate of the lifetime data. M.S.C. 2000: 60E05, 62E99.