Bootstrap Method of Item Availability Evaluation Using Limited Sampling Data

Item availability is a function of reliability and maintainability of item.Reliability and maintainability are described by probability density of given distribution parameters.Item availability evaluation is very difficult,where distribution parameters are unknown,only confidence interval of distribution parameters is calculated.Based on Bootstrap numeric simulation method,item availability evaluation method is proposed using limited sampling data of reliability and maintainability,and calculation method of optimal maintenance cycle is presented.