SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINE
Aiming at exhaust pipe cracking failure of a single cylinder diesel engine, thermo-mechanical coupling approach based on equivalent vibration and material temperature effect was presented, and then varied stress was simulated using Finite Element Method. According to the modified Miner law and linea...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2019-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.028 |
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| _version_ | 1841535621744558080 |
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| author | ZHANG HuaBing LI LiTing MIAO WeiChi JIAO YaFei LIANG Gang QIAO XinQi |
| author_facet | ZHANG HuaBing LI LiTing MIAO WeiChi JIAO YaFei LIANG Gang QIAO XinQi |
| author_sort | ZHANG HuaBing |
| collection | DOAJ |
| description | Aiming at exhaust pipe cracking failure of a single cylinder diesel engine, thermo-mechanical coupling approach based on equivalent vibration and material temperature effect was presented, and then varied stress was simulated using Finite Element Method. According to the modified Miner law and linear cumulative damage theory, considering stress gradient, surface roughness and temperature, dangerous position of exhaust pipe structure is predicted. The results show that exhaust pipe cracking is due to lack of stiffness in upper and lower direction. There is a risk of thermal modal resonance, and insufficient safety factor causes failure. Fatigue safety factor of original and support improved is 1.06 and 1.6, respectively. The predicted results agree well with measurements. |
| format | Article |
| id | doaj-art-583d1fa7fdcc46c985d4f7675fc47e76 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2019-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-583d1fa7fdcc46c985d4f7675fc47e762025-01-15T02:30:16ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-014143043530604332SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINEZHANG HuaBingLI LiTingMIAO WeiChiJIAO YaFeiLIANG GangQIAO XinQiAiming at exhaust pipe cracking failure of a single cylinder diesel engine, thermo-mechanical coupling approach based on equivalent vibration and material temperature effect was presented, and then varied stress was simulated using Finite Element Method. According to the modified Miner law and linear cumulative damage theory, considering stress gradient, surface roughness and temperature, dangerous position of exhaust pipe structure is predicted. The results show that exhaust pipe cracking is due to lack of stiffness in upper and lower direction. There is a risk of thermal modal resonance, and insufficient safety factor causes failure. Fatigue safety factor of original and support improved is 1.06 and 1.6, respectively. The predicted results agree well with measurements.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.028Diesel engineExhaust pipeFatigue analysisThermal modeThermo-mechanical coupling |
| spellingShingle | ZHANG HuaBing LI LiTing MIAO WeiChi JIAO YaFei LIANG Gang QIAO XinQi SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINE Jixie qiangdu Diesel engine Exhaust pipe Fatigue analysis Thermal mode Thermo-mechanical coupling |
| title | SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINE |
| title_full | SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINE |
| title_fullStr | SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINE |
| title_full_unstemmed | SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINE |
| title_short | SIMULATION AND ANALYSIS OF CRACKING EXHAUST PIPE FOR SINGLE-CYLINDER DIESEL ENGINE |
| title_sort | simulation and analysis of cracking exhaust pipe for single cylinder diesel engine |
| topic | Diesel engine Exhaust pipe Fatigue analysis Thermal mode Thermo-mechanical coupling |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.028 |
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