Burn-In For Avoiding Large Risks Under Heterogeneous Populations
Burn-in is a method of elimination of initial failures of manufactured items. To burn-in a component or a system means to subject it to a period of simulated operation prior to actual field use. Various optimal burn-in problems have been intensively studied in the literature under the assumption of decreasing or bathtub-shaped failure rates of items. Most of these studies have been conducted for homogeneous populations. In this paper, we discuss burn-in for heterogeneous populations and develop approaches that should help to minimize the risks of selecting items with large levels of individual failure rates for missions of high importance, where failures can result, e.g., in substantial economic losses. Using simple examples, we consider the optimal burn-in time which minimizes average losses for different criteria.
Reliability Burn-in Heterogeneous Population Stochastically Ordered Subpopulations Average Loss
JIHWAN CHA MAXIM FINKELSTEIN
Department of Statistics, Ewha Womans University, Seoul, 120-750, Korea Department of Mathematical Statistics, University of the Free State, 339 Bloemfontein 9300, South Af
国际会议
北京
英文
441-446
2011-06-20（万方平台首次上网日期，不代表论文的发表时间）