Evaluating the Degradation Process of Electronic Elements on Combat Vehicles in Accelerated Reliability Test on Multifactor Stress

Kód výsledku v IS VaVaI

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Výsledek na webu

<a href="http://en.ktu.lt/" target="_blank" >http://en.ktu.lt/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluating the Degradation Process of Electronic Elements on Combat Vehicles in Accelerated Reliability Test on Multifactor Stress

Popis výsledku v původním jazyce

Combat vehicles often work under harsh conditions, greatly affecting the lifetime and reliability of the equipment used on them, especially electronic equipment. Electronic equipment is made up of electronic elements, so the used electronic elements must be highly reliable to meet the survival requirements of combat vehicles. The reliability study of electronic elements in simulated conditions close to the actual working conditions of the combat vehicle is necessary before using them on combat vehicles under real working conditions. The tests of this type usually must be conducted over a long time to obtain the desired results. Therefore, Accelerated Reliability Test (ART) is an effective resolution and is often used thanks to shortening the time and cost for testing. However, even in the ARTs, hard failures of highly reliable products rarely occur, and it leads to many limitations in evaluating product reliability over lifetime data. Then the degradation data containing information about the product degradation process is analyzed using statistical mathematical models (typically Wiener process-based model, Gamma process-based model, or statistical regression model ...). The result is the information about the state of the product, as well as its lifetime or residual lifetime (via soft failures), can be determined. In this paper, the methodology and procedure of an accelerated reliability test for a typical electronic element on combat vehicles - LEDs - is presented. In this test, three accelerating factors (high temperature, ON/OFF cycling, and current load) have been applied to accelerate the degradation process of LEDs. To evaluate the degradation data of the experiment, the Wiener Process-Based Model with measurement errors and Statistical Regression Model are used, and a comparison between evaluation results of the two models will be done.

Název v anglickém jazyce

Evaluating the Degradation Process of Electronic Elements on Combat Vehicles in Accelerated Reliability Test on Multifactor Stress

Popis výsledku anglicky

Combat vehicles often work under harsh conditions, greatly affecting the lifetime and reliability of the equipment used on them, especially electronic equipment. Electronic equipment is made up of electronic elements, so the used electronic elements must be highly reliable to meet the survival requirements of combat vehicles. The reliability study of electronic elements in simulated conditions close to the actual working conditions of the combat vehicle is necessary before using them on combat vehicles under real working conditions. The tests of this type usually must be conducted over a long time to obtain the desired results. Therefore, Accelerated Reliability Test (ART) is an effective resolution and is often used thanks to shortening the time and cost for testing. However, even in the ARTs, hard failures of highly reliable products rarely occur, and it leads to many limitations in evaluating product reliability over lifetime data. Then the degradation data containing information about the product degradation process is analyzed using statistical mathematical models (typically Wiener process-based model, Gamma process-based model, or statistical regression model ...). The result is the information about the state of the product, as well as its lifetime or residual lifetime (via soft failures), can be determined. In this paper, the methodology and procedure of an accelerated reliability test for a typical electronic element on combat vehicles - LEDs - is presented. In this test, three accelerating factors (high temperature, ON/OFF cycling, and current load) have been applied to accelerate the degradation process of LEDs. To evaluate the degradation data of the experiment, the Wiener Process-Based Model with measurement errors and Statistical Regression Model are used, and a comparison between evaluation results of the two models will be done.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20300 - Mechanical engineering

Projekt

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Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Transport Means - Proceedings of the International Conference

ISBN

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ISSN

1822-296X

e-ISSN

2351-7034

Počet stran výsledku

8

Strana od-do

113-120

Název nakladatele

Kauno Technologijos Universitetas

Místo vydání

Kaunas

Místo konání akce

Kaunas, Virtual, the Republic of Lithuania

Datum konání akce

6. 10. 2021

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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