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Determining the reliability level by combining FMEA, FTA and dematel tools

The aim of the paper was to determine the level of reliability of a carousel type device. Considering the improvement of reliability, we decided to use the basic tools of FMEA and FTA. Using FMEA, we identified the most critical part of the equipment, namely welding (RPN=320). The proposed measure o...

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Main Authors: Bujna, Marián, Prístavka, Miroslav, Lee, Chia Kuang, Strápeková, Zuzana, Kapela, Krzysztof, Malicevic, Zoran
Format: Article
Language:English
Published: Sciendo 2024
Subjects:
HD28 Management. Industrial Management
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/42979/1/Determining-the-Reliability-Level-by-Combining-FMEA-FTA-and-Dematel-Tools.pdf
http://umpir.ump.edu.my/id/eprint/42979/
https://doi.org/10.2478/agriceng-2024-0016
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spelling my.ump.umpir.429792024-11-26T00:09:23Z http://umpir.ump.edu.my/id/eprint/42979/ Determining the reliability level by combining FMEA, FTA and dematel tools Bujna, Marián Prístavka, Miroslav Lee, Chia Kuang Strápeková, Zuzana Kapela, Krzysztof Malicevic, Zoran HD28 Management. Industrial Management T Technology (General) The aim of the paper was to determine the level of reliability of a carousel type device. Considering the improvement of reliability, we decided to use the basic tools of FMEA and FTA. Using FMEA, we identified the most critical part of the equipment, namely welding (RPN=320). The proposed measure only solved the improvement of detection. Based on the FMEA analysis, we chose the TOP event for FTA - bad weld. The detected probability of peak event failure by quantitative FTA analysis was at the level of 0.58%. We identified the basic events leading to the TOP event, i.e. an allowed sonotrode, incorrect position of the membrane during sampling, short welding time and insufficient weld depth. Subsequently, reliability indicators were quantified. We achieved almost 100% availability values. Despite this, the aim was to find out a more comprehensive level of reliability and follow up findings from FMEA. We used the DEMATEL model and our own proposed economic model. Using the DEMATEL model, we found out that short welding time and an insufficient weld depth are the causative modes, that means, they significantly influence other failure modes and do so with a high significance. The creation of an economic evaluation model based on the quantification of direct costs for failure modes with the consequences of a certain number of defective products contributed to the fact that we again determined that the failure modes short welding time and insufficient depth are the modes with the highest priority for solving the bad weld event. The costs incurred as a result of their occurrence and as a result of the occurrence of downtime were the highest with these regimes. These models create space for us to more effectively design measures to improve the level of reliability and production quality, what is a prerequisite for ensuring a reduction in downtime, an increase in production quality and reliability, and an overall cost reduction. This also leads to an increase in the reputation of manufacturers. Sciendo 2024 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/42979/1/Determining-the-Reliability-Level-by-Combining-FMEA-FTA-and-Dematel-Tools.pdf Bujna, Marián and Prístavka, Miroslav and Lee, Chia Kuang and Strápeková, Zuzana and Kapela, Krzysztof and Malicevic, Zoran (2024) Determining the reliability level by combining FMEA, FTA and dematel tools. Agricultural Engineering, 28 (1). pp. 251-276. ISSN 2083-1587. (Published) https://doi.org/10.2478/agriceng-2024-0016 10.2478/agriceng-2024-0016
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic HD28 Management. Industrial Management
T Technology (General)
spellingShingle HD28 Management. Industrial Management
T Technology (General)
Bujna, Marián
Prístavka, Miroslav
Lee, Chia Kuang
Strápeková, Zuzana
Kapela, Krzysztof
Malicevic, Zoran
Determining the reliability level by combining FMEA, FTA and dematel tools
description The aim of the paper was to determine the level of reliability of a carousel type device. Considering the improvement of reliability, we decided to use the basic tools of FMEA and FTA. Using FMEA, we identified the most critical part of the equipment, namely welding (RPN=320). The proposed measure only solved the improvement of detection. Based on the FMEA analysis, we chose the TOP event for FTA - bad weld. The detected probability of peak event failure by quantitative FTA analysis was at the level of 0.58%. We identified the basic events leading to the TOP event, i.e. an allowed sonotrode, incorrect position of the membrane during sampling, short welding time and insufficient weld depth. Subsequently, reliability indicators were quantified. We achieved almost 100% availability values. Despite this, the aim was to find out a more comprehensive level of reliability and follow up findings from FMEA. We used the DEMATEL model and our own proposed economic model. Using the DEMATEL model, we found out that short welding time and an insufficient weld depth are the causative modes, that means, they significantly influence other failure modes and do so with a high significance. The creation of an economic evaluation model based on the quantification of direct costs for failure modes with the consequences of a certain number of defective products contributed to the fact that we again determined that the failure modes short welding time and insufficient depth are the modes with the highest priority for solving the bad weld event. The costs incurred as a result of their occurrence and as a result of the occurrence of downtime were the highest with these regimes. These models create space for us to more effectively design measures to improve the level of reliability and production quality, what is a prerequisite for ensuring a reduction in downtime, an increase in production quality and reliability, and an overall cost reduction. This also leads to an increase in the reputation of manufacturers.
format Article
author Bujna, Marián
Prístavka, Miroslav
Lee, Chia Kuang
Strápeková, Zuzana
Kapela, Krzysztof
Malicevic, Zoran
author_facet Bujna, Marián
Prístavka, Miroslav
Lee, Chia Kuang
Strápeková, Zuzana
Kapela, Krzysztof
Malicevic, Zoran
author_sort Bujna, Marián
title Determining the reliability level by combining FMEA, FTA and dematel tools
title_short Determining the reliability level by combining FMEA, FTA and dematel tools
title_full Determining the reliability level by combining FMEA, FTA and dematel tools
title_fullStr Determining the reliability level by combining FMEA, FTA and dematel tools
title_full_unstemmed Determining the reliability level by combining FMEA, FTA and dematel tools
title_sort determining the reliability level by combining fmea, fta and dematel tools
publisher Sciendo
publishDate 2024
url http://umpir.ump.edu.my/id/eprint/42979/1/Determining-the-Reliability-Level-by-Combining-FMEA-FTA-and-Dematel-Tools.pdf
http://umpir.ump.edu.my/id/eprint/42979/
https://doi.org/10.2478/agriceng-2024-0016
_version_ 1822924755940933632
score 13.232414

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