Reliability Analysis for Unrepairable Automotive Components

The analysis of the reliability parameters of a technical object and the determination of the change in the reliability of the object over time, requires the knowledge of the functional characteristics and reliability parameters of the elements included in a system. On the basis of the failure data...

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Autores principales:	Dariusz Ulbrich, Jaroslaw Selech, Jakub Kowalczyk, Jakub Jóźwiak, Karol Durczak, Leszk Gil, Daniel Pieniak, Marta Paczkowska, Krzysztof Przystupa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	reliability failure analysis automotive Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/7d9de17c3fc6497b910a13713cb40bad
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spelling	oai:doaj.org-article:7d9de17c3fc6497b910a13713cb40bad2021-11-25T18:15:41ZReliability Analysis for Unrepairable Automotive Components10.3390/ma142270141996-1944https://doaj.org/article/7d9de17c3fc6497b910a13713cb40bad2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7014https://doaj.org/toc/1996-1944The analysis of the reliability parameters of a technical object and the determination of the change in the reliability of the object over time, requires the knowledge of the functional characteristics and reliability parameters of the elements included in a system. On the basis of the failure data of the selected element of the object, in this case the vehicle, it is possible to determine the average working time to failure of the element and the appropriate form of distribution that characterizes the reliability and durability parameters of the tested element. The main purpose of the research presented in the article was to develop a method of assessing the reliability of an electronic component of a vehicle-a boot lid contactor. This paper also presents three possible methods of repairing the boot lid contactor (sealing the housing with adhesive with better way, replacing the element with a new one or the most time-consuming solution, changing the shape of the boot lid). The authors also decided to determine the reliability and cost parameters that will allow preventive replacement of this element. The tests were carried out on a fleet of 61 vehicles of the same model, but with different body structures. Contactor failures were reported in 41 cases, of which 29 were in the hatchback construction and 12 in the estate type. The analysis of the distribution selection for the tested part of the passenger car-the boot lid contactor-was performed using the Likelihood Value (LKV) test to determine the rank of distributions. Also the maximum likelihood (MLE) method was used to estimate the distribution parameters. The three-parameter Weibull distribution was the best-fitted distribution in both cases. It was clearly defined that one model of car with two different types of body have vastly different reliability characteristic. Based on the reliability characteristic and parameters, the appropriate preventive actions can be taken, minimizing the risk of damage, thus avoiding financial losses and guaranteeing an appropriate level of vehicle safety.Dariusz UlbrichJaroslaw SelechJakub KowalczykJakub JóźwiakKarol DurczakLeszk GilDaniel PieniakMarta PaczkowskaKrzysztof PrzystupaMDPI AGarticlereliabilityfailure analysisautomotiveTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7014, p 7014 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	reliability failure analysis automotive Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	reliability failure analysis automotive Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Dariusz Ulbrich Jaroslaw Selech Jakub Kowalczyk Jakub Jóźwiak Karol Durczak Leszk Gil Daniel Pieniak Marta Paczkowska Krzysztof Przystupa Reliability Analysis for Unrepairable Automotive Components
description	The analysis of the reliability parameters of a technical object and the determination of the change in the reliability of the object over time, requires the knowledge of the functional characteristics and reliability parameters of the elements included in a system. On the basis of the failure data of the selected element of the object, in this case the vehicle, it is possible to determine the average working time to failure of the element and the appropriate form of distribution that characterizes the reliability and durability parameters of the tested element. The main purpose of the research presented in the article was to develop a method of assessing the reliability of an electronic component of a vehicle-a boot lid contactor. This paper also presents three possible methods of repairing the boot lid contactor (sealing the housing with adhesive with better way, replacing the element with a new one or the most time-consuming solution, changing the shape of the boot lid). The authors also decided to determine the reliability and cost parameters that will allow preventive replacement of this element. The tests were carried out on a fleet of 61 vehicles of the same model, but with different body structures. Contactor failures were reported in 41 cases, of which 29 were in the hatchback construction and 12 in the estate type. The analysis of the distribution selection for the tested part of the passenger car-the boot lid contactor-was performed using the Likelihood Value (LKV) test to determine the rank of distributions. Also the maximum likelihood (MLE) method was used to estimate the distribution parameters. The three-parameter Weibull distribution was the best-fitted distribution in both cases. It was clearly defined that one model of car with two different types of body have vastly different reliability characteristic. Based on the reliability characteristic and parameters, the appropriate preventive actions can be taken, minimizing the risk of damage, thus avoiding financial losses and guaranteeing an appropriate level of vehicle safety.
format	article
author	Dariusz Ulbrich Jaroslaw Selech Jakub Kowalczyk Jakub Jóźwiak Karol Durczak Leszk Gil Daniel Pieniak Marta Paczkowska Krzysztof Przystupa
author_facet	Dariusz Ulbrich Jaroslaw Selech Jakub Kowalczyk Jakub Jóźwiak Karol Durczak Leszk Gil Daniel Pieniak Marta Paczkowska Krzysztof Przystupa
author_sort	Dariusz Ulbrich
title	Reliability Analysis for Unrepairable Automotive Components
title_short	Reliability Analysis for Unrepairable Automotive Components
title_full	Reliability Analysis for Unrepairable Automotive Components
title_fullStr	Reliability Analysis for Unrepairable Automotive Components
title_full_unstemmed	Reliability Analysis for Unrepairable Automotive Components
title_sort	reliability analysis for unrepairable automotive components
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7d9de17c3fc6497b910a13713cb40bad
work_keys_str_mv	AT dariuszulbrich reliabilityanalysisforunrepairableautomotivecomponents AT jaroslawselech reliabilityanalysisforunrepairableautomotivecomponents AT jakubkowalczyk reliabilityanalysisforunrepairableautomotivecomponents AT jakubjozwiak reliabilityanalysisforunrepairableautomotivecomponents AT karoldurczak reliabilityanalysisforunrepairableautomotivecomponents AT leszkgil reliabilityanalysisforunrepairableautomotivecomponents AT danielpieniak reliabilityanalysisforunrepairableautomotivecomponents AT martapaczkowska reliabilityanalysisforunrepairableautomotivecomponents AT krzysztofprzystupa reliabilityanalysisforunrepairableautomotivecomponents
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Reliability Analysis for Unrepairable Automotive Components

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