2k Factorial Experiments in Reliability Analysis for Weibull and log-normal Distributions

The life times of the components of a product are often analysed in quality control processes. Design of Experiment is mainly used to achieve quality but its’ application to life times are less common. Life times always associate with Reliability. This study integrates experimental design specifically a two-level factorial experimental design and simulation models to determine the important the stress factors subjected to different conditions which significantly effects the life times of a product. The main purpose is to optimize the response by extending the lifetimes of a product. The Factors considered are Temperature and voltage and their magnitude of the power are set at two levels. Simulation design of Weibull and log-normal distributions are used to generate failure times and maximum likelihood (ML) applied in the estimation of parameters.