Planning of random statistical monitoring of spacecraft elements during operational testing

Аuthors
*, **Mlitary spaсe Aсademy named after A.F. Mozhaisky, 197198, St. Petersburg, Zhdanovskaya St., 13
*e-mail: bayes@mail.ru
**e-mail: vka@mil.ru
Abstract
In the conditions of strict requirements for reliability and limited resources during testing of spacecraft components, an urgent task is to optimize the volume of random control without reducing the reliability of decisions on the suitability of product batches. This article discusses an approach to solving this problem based on the systematic application of statistical hypothesis testing methods. The main objective of the study is to develop a methodology that can significantly reduce the volume of necessary random tests through the intelligent use of a priori information.
The article considers the application of statistical hypothesis testing methods to reduce the volume of random control during control tests of spacecraft components and to obtain a more reliable decision on the suitability of a batch. The main advantage of the proposed approach is the ability to take into account the results of previous tests of analog products, similar products and products with similar components.
The purpose of the study is to reduce the number of testing stages to identify the absence of accidents and failures when a malfunction of the on-board system occurs. To achieve this goal, it is proposed to use an original heuristic algorithm for forming sets of tested products.
The article provides a practical implementation of this approach within the framework of random control procedures. The methodology for processing and integrating statistical data from various sources is described in detail. The methodology is based on the sequential verification of a set of statistical hypotheses concerning the fundamental properties of the probability distribution underlying the observed reliability and failure indicators (such as the type of distribution, its parameters, for example, the mean time between failures or the probability of failure-free operation). The results of the study are of significant practical interest to organizations that carry out control tests of highly reliable and expensive products, in particular, in the space industry, where the requirements for the reliability of solutions are extremely high, and the cost of testing each sample is high.
Keywords:
control tests, sampling plans, consumer risk, statistical hypothesis, statistical testReferences
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