Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data
A hydraulic system is a key subsystem of heavy-duty machine tools with a high failure intensity, the failure of which often causes shutdown of production and economic loss in machining. Therefore, it is necessary to implement failure analysis to identify the weak links of system and improve the reli...
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| Format: | Article |
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MDPI AG
2021-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/3/1249 |
| _version_ | 1797405949845045248 |
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| author | Shizheng Li Zhaojun Yang Hailong Tian Chuanhai Chen Yongfu Zhu Fuqin Deng Song Lu |
| author_facet | Shizheng Li Zhaojun Yang Hailong Tian Chuanhai Chen Yongfu Zhu Fuqin Deng Song Lu |
| author_sort | Shizheng Li |
| collection | DOAJ |
| description | A hydraulic system is a key subsystem of heavy-duty machine tools with a high failure intensity, the failure of which often causes shutdown of production and economic loss in machining. Therefore, it is necessary to implement failure analysis to identify the weak links of system and improve the reliability. For hydraulic system, there is often an amount of failure data collected in field, which help to calculate the occurrence probability of basic events through fault tree analysis method. However, the data are incomplete and uncertain. To address this issue, this study presents a fault tree analysis methodology. Experts’ opinions are utilized, combined with field data based on the Dempster–Shafer theory and rough set theory to fill the incompleteness and eliminate the uncertainty. For application in a case study, a fault tree of the hydraulic system of heavy-duty machine tools is firstly constructed. Then, the importance analysis is performed to help identify the weak links of hydraulic system. The results show the critical basic events affecting the safety and reliability of a hydraulic system. |
| first_indexed | 2024-03-09T03:17:40Z |
| format | Article |
| id | doaj.art-245a1b24f39148fd82f6a8c043cc9b1f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T03:17:40Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-245a1b24f39148fd82f6a8c043cc9b1f2023-12-03T15:14:56ZengMDPI AGApplied Sciences2076-34172021-01-01113124910.3390/app11031249Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure DataShizheng Li0Zhaojun Yang1Hailong Tian2Chuanhai Chen3Yongfu Zhu4Fuqin Deng5Song Lu6Key Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130025, ChinaKey Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130025, ChinaKey Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130025, ChinaKey Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130025, ChinaCollege of Materials Science and Engineering, Jilin University, Changchun 130025, ChinaFaculty of Intelligent Manufacturing, Wuyi University, Jiangmen 529000, ChinaHan’s Laser, Shenzhen 518101, ChinaA hydraulic system is a key subsystem of heavy-duty machine tools with a high failure intensity, the failure of which often causes shutdown of production and economic loss in machining. Therefore, it is necessary to implement failure analysis to identify the weak links of system and improve the reliability. For hydraulic system, there is often an amount of failure data collected in field, which help to calculate the occurrence probability of basic events through fault tree analysis method. However, the data are incomplete and uncertain. To address this issue, this study presents a fault tree analysis methodology. Experts’ opinions are utilized, combined with field data based on the Dempster–Shafer theory and rough set theory to fill the incompleteness and eliminate the uncertainty. For application in a case study, a fault tree of the hydraulic system of heavy-duty machine tools is firstly constructed. Then, the importance analysis is performed to help identify the weak links of hydraulic system. The results show the critical basic events affecting the safety and reliability of a hydraulic system.https://www.mdpi.com/2076-3417/11/3/1249heavy-duty machine toolshydraulic systemfault tree analysisreliabilityDempster–Shafer theoryrough set theory |
| spellingShingle | Shizheng Li Zhaojun Yang Hailong Tian Chuanhai Chen Yongfu Zhu Fuqin Deng Song Lu Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data Applied Sciences heavy-duty machine tools hydraulic system fault tree analysis reliability Dempster–Shafer theory rough set theory |
| title | Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data |
| title_full | Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data |
| title_fullStr | Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data |
| title_full_unstemmed | Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data |
| title_short | Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data |
| title_sort | failure analysis for hydraulic system of heavy duty machine tool with incomplete failure data |
| topic | heavy-duty machine tools hydraulic system fault tree analysis reliability Dempster–Shafer theory rough set theory |
| url | https://www.mdpi.com/2076-3417/11/3/1249 |
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