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Improving performance of large thrust bearings through modeling and experimentation

Abstract

Large thrust bearings are highly loaded machine elements and their failures cause serious losses. Start ups and stoppages of the bearing under load are specially critical regimes of operation. Load carrying capacity depends on the profile of the oil gap. In transient states this profile is also changing. In the design of large thrust bearings minimizing thermo-elastic deformations is an important goal, which can be accomplished due to application of advanced models of the bearing. Modeling of transient states becomes even more complex since there is a dynamic development of temperature distribution and deformations. Often hydrostatic jacking systems are also used. It seems to the authors that advanced bearing models are applied only in research and development of the bearings while very simple modeling is applied in on-line analysis of data from monitoring systems. Analysis of the measurement data with the use of more sophisticated models may be helpful in assessment of current bearing status – especially in early warning. Material issues create a separate problem for modeling, being more important nowadays as polymer lined bearings come into use. The models used for polymer lined bearings require realistic treatment of heat exchange and resilience of the bearing surface layer

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
MECHANICS RESEARCH COMMUNICATIONS no. 14, edition 4, pages 267 - 274,
ISSN: 0093-6413
Language:
English
Publication year:
2013
Bibliographic description:
Dąbrowski L., Pajączkowski P., Rotta G., Wasilczuk M., Wodtke M.: Improving performance of large thrust bearings through modeling and experimentation// MECHANICS RESEARCH COMMUNICATIONS. -Vol. 14, iss. 4 (2013), s.267-274
DOI:
Digital Object Identifier (open in new tab) 10.1051/meca/2013064
Verified by:
Gdańsk University of Technology

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