Cavitation induced starvation for piston-ring/liner tribological conjunction
Cavitation induced starvation for piston-ring/liner tribological conjunction
The study investigates the mechanism of ring-liner lubrication in the vicinity of the top and bottom dead centres of an internal combustion engine. Predicting lubricant transient behaviour is critical when the inlet reversal leads to thin films and inherent metal-to-metal interaction. It was found that the cavitation, which is located at the trailing edge of the contact before reversal, briefly survives after reversal as a confined bubble at the leading edge. This depletes the film promoting starvation. Several algorithms were compared. It is concluded that the lubricant film is thinner than initially thought.
483-497
Chong, W. W. F.
bd35fdf8-fa6d-4330-8bac-ae20cc8fc58e
Teodorescu, M.
10e22073-39f7-41c3-b2b7-2886c2d976f6
Vaughan, N.D.
e8f4b0e9-871b-42a7-9529-72521a574b5f
April 2011
Chong, W. W. F.
bd35fdf8-fa6d-4330-8bac-ae20cc8fc58e
Teodorescu, M.
10e22073-39f7-41c3-b2b7-2886c2d976f6
Vaughan, N.D.
e8f4b0e9-871b-42a7-9529-72521a574b5f
Chong, W. W. F., Teodorescu, M. and Vaughan, N.D.
(2011)
Cavitation induced starvation for piston-ring/liner tribological conjunction.
Tribology International, 44 (4), .
(doi:10.1016/j.triboint.2010.12.008).
Abstract
The study investigates the mechanism of ring-liner lubrication in the vicinity of the top and bottom dead centres of an internal combustion engine. Predicting lubricant transient behaviour is critical when the inlet reversal leads to thin films and inherent metal-to-metal interaction. It was found that the cavitation, which is located at the trailing edge of the contact before reversal, briefly survives after reversal as a confined bubble at the leading edge. This depletes the film promoting starvation. Several algorithms were compared. It is concluded that the lubricant film is thinner than initially thought.
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Published date: April 2011
Organisations:
nCATS Group
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Local EPrints ID: 352967
URI: http://eprints.soton.ac.uk/id/eprint/352967
ISSN: 0301-679X
PURE UUID: ee6dc8a9-938c-4488-8ba9-17cd210bbad9
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Date deposited: 28 May 2013 12:11
Last modified: 14 Mar 2024 13:58
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Author:
W. W. F. Chong
Author:
M. Teodorescu
Author:
N.D. Vaughan
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