Open AccessThe Study of a Physico-Mathematical Model of the Acceleration of Storage Life Tests of Electrical and Electronic Equipment
Author(s) -
A. Ya. Kulibaba,
A. Yu. Shtukarev,
O. V. Yushin
Publication year - 2021
Publication title -
raketno-kosmičeskoe priborostroenie i informacionnye sistemy
Language(s) - English
Resource type - Journals
eISSN - 2587-9057
pISSN - 2409-0239
DOI - 10.30894/issn2409-0239.2021.8.1.95.103
Subject(s) - acceleration , mathematical model , standard deviation , computer science , computer data storage , exponential function , relay , storage model , reliability engineering , range (aeronautics) , electrical equipment , mathematics , statistics , engineering , electrical engineering , thermodynamics , mathematical analysis , power (physics) , physics , classical mechanics , aerospace engineering , operating system
The article proposes a solution to the problem of the variety of physico-mathematical models of EEE-storage life test acceleration by implementing a method based on the analysis of the results of accelerated tests in different modes. The objects of the study are reed relays. The article presents the main physico-mathematical models used for calculating the acceleration factor when simulating storage, as well as sets forth a description of a method for comparing these models. According to this method, the product is tested in various modes and, in accordance with the procedure for accelerated storage life testing based on the prediction of parameter time-dependent degradation, the storage period is estimated. Then, for each model, the storage period estimate is obtained for normal climatic conditions together with the standard deviation. The model with the least standard deviation is considered to be the most suitable for the tested type of product. The physico-mathematical models of the acceleration of reed relay failure mechanisms during storage were studied with the help of this technique; the most suitable is the reverse exponential model.