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In this paper, aero-engine main-shaft ball bearing is for research, firstly, bearing quasi-dynamics is applied to acquire the mechanical and kinematic parameters, then non-Gaussian surface roughness is simulated based on digital filter technique, finally, micro-TEHL analysis is carried out by multi-grid method. Non-Gaussian surface parameters effects on micro-THEL performance and surface stress are...
In this paper, on the basis of quasi-dynamic theory and TEHL (thermal elastohydrodynamic lubrication) theory, a combined numerical algorithm is proposed to judge the lubrication state of high-speed and heavy-load angular contact ball bearing on aero-engine main-shaft. Based on the new coupled numerical model of bearing quasi-dynamics and TEHL analysis in point contacts, a whole coupled theoretical...
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