On the Necessity to Improve the MIL-883E Standard
DOI:
https://doi.org/10.63527/1607-8829-2025-3-92-100Keywords:
rate of relative degradation of product parameters, logarithmically normal law of failure time distribution, coefficient of variation of the rate of relative degradation of parameters of thermoelectric generator modules, diffusion-nonmonotonic law of failure time distribution, relative errors in determining reliability indicatorsAbstract
The necessity to improve the MIL-883 standard in order to more accurately determine the reliability indicators of thermoelectric generators (TEGs) is substantiated. It is shown that the failure time distribution law recommended by this standard follows from the assumption of a constant rate of relative degradation of the parameters of the tested products. Recommendations are given for the use of the MIL-883E standard for testing thermoelectric generators (TEGs). It is shown that the use of a diffusion-nonmonotonic failure time distribution instead of a logarithmic normal one allows for a significant reduction in relative errors, determination of TEG reliability indicators and a logical transition to the function of the probability of failure-free operation of an individual thermoelement.
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