Plain bearing stresses due to forming and oil film pressure
Plain bearing stresses due to forming and oil film pressure
This paper describes a methodology for assessing critical stress ranges arising in automotive plain bearings during engine operations. An industry-produced and run simulation program provides information on oil film pressure and overall bearing deformation during accelerated performance tests. This code performs an elasto-hydrodynamic lubrication analysis accounting for the compliance of the housing and journal. Finite element analyses of a multi-layer bearing are performed to assess the conditions responsible for possible fatigue damage over the bearing lining. The residual stresses arising from the forming and fitting process are first assessed. The stress analyses over the engine cycle show the intensity and distribution of cyclic tensile and compressive stresses in the bearing. The location of maximum stress range is found to be consistent with the damage observed in accelerated fatigue tests. Critical zones are identified in the lining for possible fatigue crack initiation and growth studies
Burke-Veliz, A.
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Wang, D.
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Wahdy, N.
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Reed, P.A.S.
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Merritt, D.
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Syngellakis, S.
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July 2009
Burke-Veliz, A.
cd93fbba-68f6-45c2-857e-da5f7bb628c2
Wang, D.
8c543acd-825f-4f34-948a-dcd2e289f0aa
Wahdy, N.
00c8df3f-2cca-45c7-a33c-ffd04d5d2bf8
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Merritt, D.
3a47cbd8-8269-4f40-8fdd-4ea5b0da0fcb
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Burke-Veliz, A., Wang, D., Wahdy, N., Reed, P.A.S., Merritt, D. and Syngellakis, S.
(2009)
Plain bearing stresses due to forming and oil film pressure.
7th International Conference on Modern Practice in Stress and Vibration Analysis, Cambridge, UK.
08 - 10 Sep 2009.
8 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper describes a methodology for assessing critical stress ranges arising in automotive plain bearings during engine operations. An industry-produced and run simulation program provides information on oil film pressure and overall bearing deformation during accelerated performance tests. This code performs an elasto-hydrodynamic lubrication analysis accounting for the compliance of the housing and journal. Finite element analyses of a multi-layer bearing are performed to assess the conditions responsible for possible fatigue damage over the bearing lining. The residual stresses arising from the forming and fitting process are first assessed. The stress analyses over the engine cycle show the intensity and distribution of cyclic tensile and compressive stresses in the bearing. The location of maximum stress range is found to be consistent with the damage observed in accelerated fatigue tests. Critical zones are identified in the lining for possible fatigue crack initiation and growth studies
Text
Burk_09a.pdf
- Accepted Manuscript
More information
Published date: July 2009
Venue - Dates:
7th International Conference on Modern Practice in Stress and Vibration Analysis, Cambridge, UK, 2009-09-08 - 2009-09-10
Identifiers
Local EPrints ID: 73400
URI: http://eprints.soton.ac.uk/id/eprint/73400
PURE UUID: a66a335b-8b73-41cc-8a45-5fa11a00df62
Catalogue record
Date deposited: 09 Mar 2010
Last modified: 14 Mar 2024 02:37
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Contributors
Author:
A. Burke-Veliz
Author:
D. Wang
Author:
N. Wahdy
Author:
D. Merritt
Author:
S. Syngellakis
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