Abstract
Rigid cylindrical rollers, with rolling and squeezing motions, lubricated by a non-newtonian power law fluid are analysed under cavitation boundary conditions. The lubricant consistency is assumed to vary exponentially with pressure and temperature. These pressures and temperatures are found by solving simultaneously the modified Reynolds and energy equations. Various bearing characteristics are presented and discussed. Also presented are the results obtained when the temperature effect on the lubricant consistency is neglected. The effect of temperature on the consistency is to shift the position of the pressure peak slightly towards the centre line of contact. The viscometric exponent n of the power law fluid and the squeezing velocity q are shown to have pronounced effects on the lubrication behaviour of the system under consideration. The consistency variation, especially in the pressure peak region, for dilatant and newtonian fluids, is quite significant.
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