This paper summarizes the essential parts of a numerical analysis activity in which the application of the Thermo-Elasto-Hydro-Dynamic (TEHD) lubrication theory to a crankshaft journal bearing is examined. The study is carried out through numerical computations performed by a commercial flexible-multibody code which simulates the lubricated contact between elastic bodies in large displacement motion. A multibody model has been created and its thermal behaviour has been validated by comparison with experimental temperatures. The validated model is used to perform two comparative analyses between the TEHD modelling and the Elasto-Hydro-Dynamic (EHD) modelling for max torque and max power conditions. A parametric analysis is also performed in which some functional parameters of the bearing (such as journal speed and bearing clearance) are varied and the influence of these variations on reliability (damage parameters) and performances (lost power) of the bearing is monitored.
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ASME 8th Biennial Conference on Engineering Systems Design and Analysis
July 4–7, 2006
Torino, Italy
ISBN:
0-7918-4250-9
PROCEEDINGS PAPER
Thermo-Elasto-Hydrodynamic Analysis of a Crankshaft Journal Bearing
Filippo M. Lachina,
Filippo M. Lachina
IVECO S.p.A., Torino, Italy
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Francesco Cappello,
Francesco Cappello
Universita` degli Studi di Palermo, Palermo, Italy
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Emanuele Pisano`,
Emanuele Pisano`
CRF S.C.p.A., Orbassano, TO, Italy
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Mario V. Durando,
Mario V. Durando
CRF S.C.p.A., Orbassano, TO, Italy
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Roberto Rivara
Roberto Rivara
IVECO S.p.A., Torino, Italy
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Filippo M. Lachina
IVECO S.p.A., Torino, Italy
Francesco Cappello
Universita` degli Studi di Palermo, Palermo, Italy
Emanuele Pisano`
CRF S.C.p.A., Orbassano, TO, Italy
Mario V. Durando
CRF S.C.p.A., Orbassano, TO, Italy
Roberto Rivara
IVECO S.p.A., Torino, Italy
Paper No:
ESDA2006-95411, pp. 909-917; 9 pages
Published Online:
September 5, 2008
Citation
Lachina, FM, Cappello, F, Pisano`, E, Durando, MV, & Rivara, R. "Thermo-Elasto-Hydrodynamic Analysis of a Crankshaft Journal Bearing." Proceedings of the ASME 8th Biennial Conference on Engineering Systems Design and Analysis. Volume 3: Dynamic Systems and Controls, Symposium on Design and Analysis of Advanced Structures, and Tribology. Torino, Italy. July 4–7, 2006. pp. 909-917. ASME. https://doi.org/10.1115/ESDA2006-95411
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