Discrete element simulation and test study on the barrel finishing process of aviation gears
ObjectiveAircraft gears typically operate in extreme environments such as high temperatures, high speeds, and heavy loads, requiring excellent comprehensive performance. Surface integrity parameters have a decisive impact on gear fatigue performance. Rolling grinding is a finishing process that util...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2025-02-01
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| Series: | Jixie chuandong |
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| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.02.018 |
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| _version_ | 1850184321778843648 |
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| author | ZHAO Zemin LI Guihua ZHU Guangzhao TANG Jinyuan LI Xin LIU Qingsong |
| author_facet | ZHAO Zemin LI Guihua ZHU Guangzhao TANG Jinyuan LI Xin LIU Qingsong |
| author_sort | ZHAO Zemin |
| collection | DOAJ |
| description | ObjectiveAircraft gears typically operate in extreme environments such as high temperatures, high speeds, and heavy loads, requiring excellent comprehensive performance. Surface integrity parameters have a decisive impact on gear fatigue performance. Rolling grinding is a finishing process that utilizes the mechanical action of abrasives to improve the surface integrity of workpieces. To improve the surface integrity and fatigue life of aviation gears, it is necessary to explore the behavior of the contact interface between the tooth surface and abrasive particles in gear rolling and polishing machining.MethodsA simulation model for the barrel finishing of aerospace gears was established based on the discrete element method to analyze the material removal from the gear surface. A predictive model for the three-dimensional surface roughness Sa value of gear surfaces was developed. Barrel finishing experiments were designed for 14CrMnSiNi2MoA aerospace cylindrical spur gears. The evolution of surface morphology and residual stress over time, before and after finishing, was analyzed.ResultsThe results indicate that barrel finishing significantly reduces the surface roughness of aerospace gears and increases surface compressive residual stress. However, the finishing effects vary across different positions on the tooth surface, with the abrasive action strength on the tooth surface following the pattern: near the gear tip > pitch circle > near the gear root. |
| format | Article |
| id | doaj-art-46ad71cdebd1447cb1040395796944dd |
| institution | OA Journals |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-46ad71cdebd1447cb1040395796944dd2025-08-20T02:17:05ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392025-02-014913814484639037Discrete element simulation and test study on the barrel finishing process of aviation gearsZHAO ZeminLI GuihuaZHU GuangzhaoTANG JinyuanLI XinLIU QingsongObjectiveAircraft gears typically operate in extreme environments such as high temperatures, high speeds, and heavy loads, requiring excellent comprehensive performance. Surface integrity parameters have a decisive impact on gear fatigue performance. Rolling grinding is a finishing process that utilizes the mechanical action of abrasives to improve the surface integrity of workpieces. To improve the surface integrity and fatigue life of aviation gears, it is necessary to explore the behavior of the contact interface between the tooth surface and abrasive particles in gear rolling and polishing machining.MethodsA simulation model for the barrel finishing of aerospace gears was established based on the discrete element method to analyze the material removal from the gear surface. A predictive model for the three-dimensional surface roughness Sa value of gear surfaces was developed. Barrel finishing experiments were designed for 14CrMnSiNi2MoA aerospace cylindrical spur gears. The evolution of surface morphology and residual stress over time, before and after finishing, was analyzed.ResultsThe results indicate that barrel finishing significantly reduces the surface roughness of aerospace gears and increases surface compressive residual stress. However, the finishing effects vary across different positions on the tooth surface, with the abrasive action strength on the tooth surface following the pattern: near the gear tip > pitch circle > near the gear root.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.02.018Aviation gearsBarrel finishingDiscrete element methodSurface morphologyResidual stress |
| spellingShingle | ZHAO Zemin LI Guihua ZHU Guangzhao TANG Jinyuan LI Xin LIU Qingsong Discrete element simulation and test study on the barrel finishing process of aviation gears Jixie chuandong Aviation gears Barrel finishing Discrete element method Surface morphology Residual stress |
| title | Discrete element simulation and test study on the barrel finishing process of aviation gears |
| title_full | Discrete element simulation and test study on the barrel finishing process of aviation gears |
| title_fullStr | Discrete element simulation and test study on the barrel finishing process of aviation gears |
| title_full_unstemmed | Discrete element simulation and test study on the barrel finishing process of aviation gears |
| title_short | Discrete element simulation and test study on the barrel finishing process of aviation gears |
| title_sort | discrete element simulation and test study on the barrel finishing process of aviation gears |
| topic | Aviation gears Barrel finishing Discrete element method Surface morphology Residual stress |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.02.018 |
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