An approach in determining the critical level of degradation based on results of accelerated test

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F23%3A00557980" target="_blank" >RIV/60162694:G43__/23:00557980 - isvavai.cz</a>

Result on the web

<a href="http://www.ein.org.pl/2022-02-14" target="_blank" >http://www.ein.org.pl/2022-02-14</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17531/ein.2022.2.14" target="_blank" >10.17531/ein.2022.2.14</a>

Result language

angličtina

Original language name

An approach in determining the critical level of degradation based on results of accelerated test

Original language description

Nowadays, systems are more complex and require high reliability for their components, especially critical system components. Therefore, to avoid serious damage, system are often replaced before the actual failure. The replaced parts are considered to have “soft failure”, and the limit in which the parts are replaced is known as the critical level of the degradation process. Determining the appropriate value of the critical level for a product is an important problem in their exploitation, as well as for predicting the Mean Time to Failure (MTTF) or Remaining Useful Lifetime (RUL) of this product based on the degradation data by the mathematical models. In this article, an approach in determining the critical levels based on failure data from an accelerated test is introduced. This approach is applied with the degradation process of Light-Emitting Diodes (LED) in an accelerated test and a type of Wiener process-based model is used to predict the MTTF or RUL of LED based on their degradation data and the found critical level.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21100 - Other engineering and technologies

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Eksploatacja i Niezawodnosc

ISSN

1507-2711

e-ISSN

1507-2711

Volume of the periodical

24

Issue of the periodical within the volume

2

Country of publishing house

PL - POLAND

Number of pages

8

Pages from-to

330-337

UT code for WoS article

000790011400002

EID of the result in the Scopus database

2-s2.0-85129220396