Abstract
The present work envisaged the development of a novel method for computing the damping coefficients of thermal elastohydrodynamic lubricated point contacts based on energy conservation. The effects of load, entrainment velocity, and slide–roll ratio were studied, and the results were compared with the ISO thermal results. Multi-level method and discrete convolution fast Fourier transform method were employed to improve the solution convergence efficiency, and a sequential column sweeping technique was employed to solve the energy equations. The results indicated an increase in the damping coefficients with an increase in the load, and a corresponding decrease with an increase in the speed. When the entrainment velocity was relatively low, or the slide–roll ratio was relatively small, the influence of the slide–roll ratio was negligible. Subsequently, the relation between the damping coefficients and the load, speed, and slide–roll ratio was established using the least-square method.
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