Journal article 850 views 121 downloads
The effect of preload and surface roughness quality on linear joint model parameters
Hassan Jalali,
Hamed Haddad Khodaparast,
Michael Friswell,
Hamed Haddad Khodaparast 
Journal of Sound and Vibration, Volume: 447, Pages: 186 - 204
Swansea University Authors:
Michael Friswell, Hamed Haddad Khodaparast
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DOI (Published version): 10.1016/j.jsv.2019.01.050
Abstract
The physical parameters of the contact interfaces, such as preload and surface roughness quality, significantly affect the stiffness of joints. Knowledge of the relationship between these interface parameters and the equivalent stiffness allows joints to be considered in the design stages of complex...
| Published in: | Journal of Sound and Vibration |
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| ISSN: | 0022460X |
| Published: |
2019
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa48675 |
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| Abstract: |
The physical parameters of the contact interfaces, such as preload and surface roughness quality, significantly affect the stiffness of joints. Knowledge of the relationship between these interface parameters and the equivalent stiffness allows joints to be considered in the design stages of complex structures. Hence, this paper considers the effect of contact interface parameters on the identified equivalent stiffness parameters of joint models. First, a new generic joint model is proposed to model the contact interfaces. Then, the ability of three different joint models, including the new model proposed in this paper, to capture the linear effects of contact interfaces under different preloads and surface roughness qualities is investigated. Finally, it is concluded that the preload and surface roughness quality control the normal and shearing stiffness of the joint models respectively. Experimental investigations also reveal that a complex mechanism governs the energy dissipation in the contact interface. |
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| Keywords: |
structural joint, surface roughness, preload |
| College: |
Faculty of Science and Engineering |
| Start Page: |
186 |
| End Page: |
204 |