A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy Environment
Reliability of high demand machines is quite necessary and it can be maintained through proper and timely maintenance, Ultra-low temperature (ULT) freezer is one of those kinds of machines which are in high demand during covid-19 pandemic for the storage of vaccine. The rapid production of vaccines...
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| Format: | Article |
| Language: | English |
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Ram Arti Publishers
2023-06-01
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| Series: | International Journal of Mathematical, Engineering and Management Sciences |
| Subjects: | |
| Online Access: | https://www.ijmems.in/cms/storage/app/public/uploads/volumes/27-IJMEMS-22-0711-8-3-477-503-2023.pdf |
| _version_ | 1797850242872246272 |
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| author | Pooja Dhiman Amit Kumar |
| author_facet | Pooja Dhiman Amit Kumar |
| author_sort | Pooja Dhiman |
| collection | DOAJ |
| description | Reliability of high demand machines is quite necessary and it can be maintained through proper and timely maintenance, Ultra-low temperature (ULT) freezer is one of those kinds of machines which are in high demand during covid-19 pandemic for the storage of vaccine. The rapid production of vaccines for the prevention of coronavirus disease 2019 (COVID-19) is a worldwide requirement. Now the next challenge is to store the vaccine in a ULT freezer. It’s become really a big problem to store the vaccine which creates the demand of ULT freezer. The present paper investigates a situational based performance of the ULT freezer with the aim to predict the impact of different component failures as well as human errors on the final performance of the same. For the study, it is not possible to extract the parameters (failure rate and repair time) of the components that never failed before. Thus, to overcome this difficulty, here authors use the possibility theory. Authors present the available data in Right triangular fuzzy number with some tolerance as suggested by system analyst. The lambda-tau methodology and arithmetic operations on right triangular generalized fuzzy numbers (RTrFN) are used to find the various performance parameters namely MTTF, MTTR, MTBF, reliability, availability, maintainability (RAM) and ENOF, under fuzzy environment. The proposed model has been studied using possibility theory under working conditions, preventive maintenance as well as under the rest of conditions. This study reveals the most and least critical component of the ULT freezer which helps maintenance department to plan the maintenance strategy accordingly. |
| first_indexed | 2024-04-09T18:57:14Z |
| format | Article |
| id | doaj.art-8de888cdba0648fdb2238ba3a4701f05 |
| institution | Directory Open Access Journal |
| issn | 2455-7749 |
| language | English |
| last_indexed | 2024-04-09T18:57:14Z |
| publishDate | 2023-06-01 |
| publisher | Ram Arti Publishers |
| record_format | Article |
| series | International Journal of Mathematical, Engineering and Management Sciences |
| spelling | doaj.art-8de888cdba0648fdb2238ba3a4701f052023-04-09T10:47:27ZengRam Arti PublishersInternational Journal of Mathematical, Engineering and Management Sciences2455-77492023-06-0183477503https://doi.org/10.33889/IJMEMS.2023.8.3.027A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy EnvironmentPooja Dhiman0Amit Kumar1Department of Mathematics, Chitkara University, Punjab, India.Department of Applied Sciences, Symbiosis Institute of Technology, Symbiosis International (Deemed University) (SIU), Lavale, Pune, Maharashtra, India.Reliability of high demand machines is quite necessary and it can be maintained through proper and timely maintenance, Ultra-low temperature (ULT) freezer is one of those kinds of machines which are in high demand during covid-19 pandemic for the storage of vaccine. The rapid production of vaccines for the prevention of coronavirus disease 2019 (COVID-19) is a worldwide requirement. Now the next challenge is to store the vaccine in a ULT freezer. It’s become really a big problem to store the vaccine which creates the demand of ULT freezer. The present paper investigates a situational based performance of the ULT freezer with the aim to predict the impact of different component failures as well as human errors on the final performance of the same. For the study, it is not possible to extract the parameters (failure rate and repair time) of the components that never failed before. Thus, to overcome this difficulty, here authors use the possibility theory. Authors present the available data in Right triangular fuzzy number with some tolerance as suggested by system analyst. The lambda-tau methodology and arithmetic operations on right triangular generalized fuzzy numbers (RTrFN) are used to find the various performance parameters namely MTTF, MTTR, MTBF, reliability, availability, maintainability (RAM) and ENOF, under fuzzy environment. The proposed model has been studied using possibility theory under working conditions, preventive maintenance as well as under the rest of conditions. This study reveals the most and least critical component of the ULT freezer which helps maintenance department to plan the maintenance strategy accordingly.https://www.ijmems.in/cms/storage/app/public/uploads/volumes/27-IJMEMS-22-0711-8-3-477-503-2023.pdfult freezeruncertaintyreliabilityconfidence levelfuzzy number |
| spellingShingle | Pooja Dhiman Amit Kumar A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy Environment International Journal of Mathematical, Engineering and Management Sciences ult freezer uncertainty reliability confidence level fuzzy number |
| title | A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy Environment |
| title_full | A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy Environment |
| title_fullStr | A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy Environment |
| title_full_unstemmed | A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy Environment |
| title_short | A Situational Based Reliability Indices Estimation of ULT Freezer using Preventive Maintenance under Fuzzy Environment |
| title_sort | situational based reliability indices estimation of ult freezer using preventive maintenance under fuzzy environment |
| topic | ult freezer uncertainty reliability confidence level fuzzy number |
| url | https://www.ijmems.in/cms/storage/app/public/uploads/volumes/27-IJMEMS-22-0711-8-3-477-503-2023.pdf |
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