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Detail projektu
Období řešení: 01.01.2003 — 31.12.2005
Zdroje financování
Grantová agentura České republiky - Standardní projekty
- částečně financující (2003-01-01 - 2005-12-31)
O projektu
Experimentální a numerické studium únavového poškozování elastohydrodynamicky mazaných třecích povrchů
Popis anglickyThe proposed project is aimed at the experimental and numerical study of surface initiated rolling contact fatigue (RCF) due to the passage of dents in elastohydrodynamically (EHL) lubricated contacts. The main goal is to provide damage tolerant bearingsteel that can help rolling bearings to survive in debris contaminated lubrication or endure debris damage without suffering serious life reduction. The thin film colorimetric interferometry (TFCI) measurement technique and finite element modelling (FEM)will be used for the study of influence of dent geometry (e.g. size and location), operating conditions (e.g. rolling speed, slide-to-roll ratio and load) and steel composition (e.g. retained austenite) on: - elastohydrodynamic film thickness, - contactpressure, - subsurface stresses, - fatigue life reduction. Obtained results will enable to find a quantitative relationship between all above-mentioned factors with the view to propose empirical life reduction model.
Označení
GA101/03/0525
Originální jazyk
čeština
Řešitelé
Hartl Martin, prof. Ing., Ph.D. - hlavní řešitel
Útvary
Ústav konstruování- příjemce (01.01.2003 - 31.12.2005)
Výsledky
KŘUPKA, I., HARTL, M., LIŠKA, M. Experimental Study of Real Roughness Features within EHD Point Contacts. In Proceedings of the 3rd World Tribology Congress. Washington, USA: ASME, 2005. p. 1 ( p.)Detail
KŘUPKA, I., HARTL, M. Behaviour of Roughness Features Passing Through EHD Point Contact. In COST 532 Conference. Porto: 2005. p. 45 ( p.)ISBN: 972-8953-01-1.Detail
HARTL, M. Numerical Solution of EHL Point Contact with Single Real Dent and Comparison with Experimental Measurement. In Book of Synopses ITC. Tokyo: 2005. p. 343 ( p.)ISBN: 4-9900139-7-2.Detail
KŘUPKA, I. The influence of slide-to-roll ratio on lubricant film thickness distribution in the vicinity of real roughness features passing through EHD point contact. In 31st Leeds-Lyon Symposium on Tribology. 2005. p. 57 ( p.)ISBN: 0-444-51687-5.Detail
HARTL, M., LIŠKA, M. Direct observation of the behaviour of the real surface roughness passing through EHD point contact. In Transient Processes in Tribology, 43. Holandsko: Elsevier, 2004. p. 419 ( p.)ISBN: 0-444-51706-5.Detail
KŘUPKA, I., HARTL, M., LIŠKA, M. Experimental Study of Real Asperities Behaviour within Lubricated Contacts. In Tribology and Lubrication Engineering. Esslingen: Technische Akademie Esslingen, 2004. p. 1681 ( p.)ISBN: 3-924813-54-X.Detail
KŘUPKA, I., HARTL, M., LIŠKA, M. Some insights into lubricant film thickness in mixed EHD point contact. In Tribology research and design for engineering systems. Tribology series 41. Amsterdam: Elsevier, 2003. p. 549-558. ISBN: 0-444-51243-8.Detail
KŘUPKA, I.; HARTL, M.; URBANEC, L.; ČERMÁK, J. Single dent behaviour within EHD lubricated contacts - comparison between experimental and numerical results. In Proceedings of ASIATRIB 2006. Tokyo: Japanese Society of Tribologists, 2006. p. 193-194. ISBN: 4-9900139-8-0.Detail
KŘUPKA, I.; HARTL, M. EHL film thickness behaviour under high pressure - comparison between numerical and experimental results. In Proceedings of the IUTAM Symposium on Elastohydrodynamics and Microelastohydrodynamics. Cardiff: Springer, 2006. p. 217-228. ISBN: 1-4020-4532-8.Detail
HARTL, M., LIŠKA, M. Experimental study of elastohydrodynamically lubricated elliptic contact. 2003, vol. 1, no. 1, p. 26 ( p.)Detail
LIŠKA, M., HARTL, M., FUIS, V. In situ studium smíšeného mazání reálných třecích povrchů optickými interferenčními metodami. 2003, roč. 48, č. 6, s. 181 ( s.)ISSN: 0447-6411.Detail
HARTL, M., FUIS, V., LIŠKA, M. Experimental study of lubricant film thickness behavior in the vicinity of real asperities passing through lubricated contact. Tribology Transactions, 2004, vol. 47, no. 3, p. 376 ( p.)ISSN: 0569-8197.Detail
VAVERKA, M.; VRBKA, M.; KŘUPKA, I.; HARTL, M. Influence of Dents on Friction Surfaces on Thin Lubrication Films. In 15th International Colloquium Tribology - Automotive and Industrial Lubrication. Esslingen, Ostfildern: Technische Akademie Esslingen, Ostfildern, 2006. p. 1-5. ISBN: 3-924813-62-0.Detail