Calculation-experimental modeling of wear of cylindrical sliding bearings

Finite-element modeling of dry sliding wear in metals

This paper is concerned with the calibration and validation of a finite-element model of dry sliding wear in metals. The model is formulated within a Lagrangian framework capable of accounting for large plastic deformations and history-dependent material behavior. We resort to continuous adaptive meshing as a means of eliminating deformation-induced element distortion, and of resolving fine fea...

Measurement of Wear in Radial Journal Bearings

In this article, the measurement of wear i n radial journal bearings is discussed, where a distinction is made between stationa y and non-stationa y contact conditions. Starting with Holm/ArchardS wear law, equations are derived for the calculation of the specific wear rate k of the bearing material as afunction of the wear depth d, measured after an experiment or a period of use i n practice. ...

Electrostatic wear monitoring of rolling element bearings

Research and development work at the University of Southampton using an electrostatic condition monitoring system developed by Smiths Aerospace Information Systems has shown that electrostatic charge signals can be used to detect the onset of wear in lubricated tribo-contacts. Preliminary investigations have already demonstrated the viability of this system when tested on a laboratory-based pin...

Holographic Measurement of Cavitation in Sliding Bearings

Lubrication of Sliding Bearings for Hydropower Applications

The influence of pad facing material on hydrodynamic lubrication in tilting-pad thrustbearings is investigated in terms of pad and oil-film temperatures and oil-film thickness. Two tilting-pad thrust bearings are examined: one with babbitt pad facing, the other with a layer of a PTFE based composite material. Frictional torque, pad, collar and oil-film temperatures and oil-film thicknes...