Non-Newtonian squeeze film characteristics between parallel annular disks: Rabinowitsch fluid model

Abstract

On the basis of the Rabinowitsch fluid model, a theoretical study of the non-Newtonian effects on the squeeze film characteristics between parallel annular disks is presented. Using a small perturbation method, a closed-form solution is derived. According to the results, the influences of dilatant properties provide an increase in the load-carrying capacity, and therefore lengthen the response time; however, the effects of pseudoplastic characteristics yield a reversed trend as compared to the case of Newtonian lubricants. Further results have been presented through the variation of the nonlinear non-Newtonian parameter and the radius ratio.