Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process
By considering the tightening process, a three-dimensional elastic finite element analysis is conducted to explore the mechanism of bolt self-loosening under transverse cyclic loading. According to the geometrical features of the thread, a hexahedral meshing is implemented by modifying the node coor...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/2038421 |
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| _version_ | 1849414486759309312 |
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| author | Yan Chen Qiang Gao Zhenqun Guan |
| author_facet | Yan Chen Qiang Gao Zhenqun Guan |
| author_sort | Yan Chen |
| collection | DOAJ |
| description | By considering the tightening process, a three-dimensional elastic finite element analysis is conducted to explore the mechanism of bolt self-loosening under transverse cyclic loading. According to the geometrical features of the thread, a hexahedral meshing is implemented by modifying the node coordinates based on cylinder meshes and an ABAQUS plug-in is made for parametric modeling. The accuracy of the finite element model is verified and validated by comparison with the analytical and experimental results on torque-tension relationship. And, then, the fastening states acquired by different means are compared. The results show that the tightening process cannot be replaced by a simplified method because its fastening state is different from the real process. With combining the tightening and self-loosening processes, this paper utilizes the relative rotation angles and velocities to investigate the slip states on contact surfaces instead of the Coulomb friction coefficient method, which is used in most previous researches. By contrast, this method can describe the slip states in greater detail. In addition, the simulation result reveals that there exists a creep slip phenomenon at contact surface, which causes the bolt self-loosening to occur even when some contact facets are stuck. |
| format | Article |
| id | doaj-art-72fe5f1bee654d9c8fca629d0b808756 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-72fe5f1bee654d9c8fca629d0b8087562025-08-20T03:33:50ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/20384212038421Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening ProcessYan Chen0Qiang Gao1Zhenqun Guan2State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, ChinaBy considering the tightening process, a three-dimensional elastic finite element analysis is conducted to explore the mechanism of bolt self-loosening under transverse cyclic loading. According to the geometrical features of the thread, a hexahedral meshing is implemented by modifying the node coordinates based on cylinder meshes and an ABAQUS plug-in is made for parametric modeling. The accuracy of the finite element model is verified and validated by comparison with the analytical and experimental results on torque-tension relationship. And, then, the fastening states acquired by different means are compared. The results show that the tightening process cannot be replaced by a simplified method because its fastening state is different from the real process. With combining the tightening and self-loosening processes, this paper utilizes the relative rotation angles and velocities to investigate the slip states on contact surfaces instead of the Coulomb friction coefficient method, which is used in most previous researches. By contrast, this method can describe the slip states in greater detail. In addition, the simulation result reveals that there exists a creep slip phenomenon at contact surface, which causes the bolt self-loosening to occur even when some contact facets are stuck.http://dx.doi.org/10.1155/2017/2038421 |
| spellingShingle | Yan Chen Qiang Gao Zhenqun Guan Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process Shock and Vibration |
| title | Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process |
| title_full | Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process |
| title_fullStr | Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process |
| title_full_unstemmed | Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process |
| title_short | Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process |
| title_sort | self loosening failure analysis of bolt joints under vibration considering the tightening process |
| url | http://dx.doi.org/10.1155/2017/2038421 |
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