Modelling the thermal performance of bearings using CFD involves the simultaneous simulation of oil flow and conjugate heat transfer. This process is challenging due to the differing time scales of convective and cond...
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Established metallographic methods of determining the cleanliness of bearing steels with respect to micro-inclusions, such as ASTM E 45, are capable of differentiating poor quality melts from good quality melts. Howev...
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Predicting rolling bearing fatigue life requires knowledge of the three-dimensional(3D)stress fields in the roller and raceway near the lubricated *** to the increasingly severe operating conditions,the effect of loca...
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Predicting rolling bearing fatigue life requires knowledge of the three-dimensional(3D)stress fields in the roller and raceway near the lubricated *** to the increasingly severe operating conditions,the effect of localized features such as surface roughness,subsurface inclusions,and even the crystallographic structure of the material becomes *** such detail requires(locally)extremely dense gridding in simulations,which in 3D is a major *** techniques have been demonstrated to be capable of solving such *** this study,multigrid techniques are shown to further increase the efficiency of the solution by exploiting local grid refinement while maintaining the simplicity of a uniform *** is achieved by employing increasingly finer grids only locally,where the highest resolution is *** are presented for dry contact and elastohydrodynamically lubricated contact cases,circular as well as elliptic,with varying crystallographic structure,and with surface *** results show that the developed algorithm is very well suited for detailed analysis,with also excellent prospects for computational diagnostics involving actual material crystallographic structure from electron backscatter diffraction measurements.
Surface-initiated rolling contact fatigue (RCF) can be triggered by dents formed due to contamination particles on raceways. To mimic this failure in this study, the surface of a steel was indented and tested in an RC...
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The thermal effect is the most considered parameter affecting the dimensional stability of a bearing component. It is generally associated with the transformations of the metastable phases in the steel upon exposure t...
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Lubrication plays a significant role in performance of rolling element bearings. It is essential for proper functioning of bearings to reduce friction and to help avoid failure of bearings. Computational fluid dynamic...
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