A Method to Estimate the Weibull Parameters for Progressively Censored Tests

摘要: The paper treats a statistical method which allows estimation of Weibull parameters and their confidence limits for progressively-censored aging tests. Estimate shape scale is based on procedure establishes relation the tests performed set specimens with an equivalent singly-censored test, so that Blom estimator can be used later failures are pertinent to really-aged specimens, acquire greater weight. Statistical time-to-failure percentiles calculated by derived from Bain & Engelhardt. A presented makes it possible obtain satisfactory estimates 2-parameter distribution, as well intervals, in presence life type. comparison results various samples, drawn literature statistically different size, degree censoring, material conditions, exhibit goodness proposed procedure. In particular, one notes intrinsic characteristic method, is, weighting extend. Hence, useful treatment tests, where moderately-large samples often failures, those particularly important order characterize aging.