%0 Journal Article
%T OPTIMUM GENERALIZED COMPOUND LINEAR PLAN FOR MULTIPLE-STEP STEP-STRESS ACCELERATED LIFE TESTS
%J International Journal of Mathematical Modelling & Computations
%I Islamic Azad University, Central tehran Branch
%Z 2228-6225
%A Chandra, Navin
%A Ahmad Kha, Mashroor
%D 2015
%\ 03/21/2015
%V 5
%N 3 (SUMMER)
%P 267-275
%! OPTIMUM GENERALIZED COMPOUND LINEAR PLAN FOR MULTIPLE-STEP STEP-STRESS ACCELERATED LIFE TESTS
%K accelerated life testing
%K Rayleigh distribution
%K cumulative exposure model
%K maximum likelihood estimate
%K generalized compound linear plan
%R
%X In this paper, we consider an i.e., multiple step-stress accelerated life testing (ALT) experiment with unequal duration of time . It is assumed that the time to failure of a product follows Rayleigh distribution with a log-linear relationship between stress and lifetime and also we assume a generalized Khamis-Higgins model for the effect of changing stress levels. Taking into account that the problem of choosing the optimal time for 3-step step-stress tests under compound linear plan was initially attempted by Khamis and Higgins [16]. We ever first have developed a generalized compound linear plan for multiple-step step-stress setting using variance-optimality criteria. Some numerical examples are discussed to illustrate the proposed procedures.
%U http://ijm2c.iauctb.ac.ir/article_521899_a1b98c705e35eb1d9bf4134aeb42c99d.pdf