Hydrodynamic thrust bearings with polymer lining


Nom: 
Michal Wodtke (Politechnika Gdańska)
Lieu Evenemement: 
Département GMSC, Grande Salle de réunion
Date: 
Mercredi, 30 Mai, 2018 - 14:30
Description: 

Hydrodynamic thrust bearings with polymer lining

Polymer linings of sliding surfaces of the hydrodynamic bearings have been used successfully for over 50 years. Despite their long history of application, they have not become widespread in industrial practice. This fact may be surprising, considering the conclusions from the known results of researches concerning performance of polymer lined bearing. One of the reasons may be a limited number of detailed scientific papers investigating the phenomena accompanying operation of such type of thrust bearing.

Within the frame of this seminar, the results of a comprehensive theoretical and experimental research of the phenomena in hydrodynamic thrust bearing with polymer lining will be presented. Theoretical analyses of tilting-pad thrust bearing were carried out with the use of multi-physical modelling technique. The applied methodology, combining the analysis of fluid flow and solid mechanics, allowed theoretical studies of phenomena occurring in the bearing system in a more detailed way than in previous published literature. Detailed results of theoretical bearing calculations will be discussed, as for example: pad and collar temperature profiles, heat flow flux distribution, oil pressure profiles, oil film thickness geometry or bearing power losses. In addition to theoretical studies, results of experimental tests carried out for thrust bearing in a wide range of loads and operating conditions will be presented.

An important issue was also to describe the differences between the operational performance of the bearings with polymer sliding layers and the bearings lined with conventional bearing alloys. For that reason, theoretical and experimental investigations were carried out at similar operating conditions also for a thrust bearing lined with conventional white metal alloy

Departement: 
D3







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