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Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-12-06
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Chen, Yan& Gao, Q.& Guan, Zhenqun. 2017. Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process. Shock and Vibration،Vol. 2017, no. 2017, pp.1-15.
https://search.emarefa.net/detail/BIM-1204067
Modern Language Association (MLA)
Chen, Yan…[et al.]. Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process. Shock and Vibration No. 2017 (2017), pp.1-15.
https://search.emarefa.net/detail/BIM-1204067
American Medical Association (AMA)
Chen, Yan& Gao, Q.& Guan, Zhenqun. Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-15.
https://search.emarefa.net/detail/BIM-1204067
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204067