Study of Human Joint Under Highly Loaded Conditions: Effect of Exponential Slider Bearing

Authors:

Kapil Shekhar (Dayalbagh Educational Institute, Agra)

A.P. Tyagi (Dayalbagh Educational Institute, Agra)

Arti Saxena (Manav Rachna International University, Faridabad)

Keywords: Reynolds’ equation,exponential slider bearing, Hyaluronic acid (HA) molecules, Lubricant flux, Load capacity.

Abstract:

A theoretical analysis of the lubrication mechanism occurring in human knee joint is presented. The Reynolds equation is derived to account for the sliding effect. The pressure and load capacity of bearing system are obtained when the film thickness is an exponential function. In this paper, the effects of HA molecules in the synovial fluid of human knee joint are studied under highly loaded conditions. The effect of viscosity variation is taken into account for both normal and diseased joints. It is found that as the parameter of viscosity i.e., the concentration of HA molecules increases, the load bearing capacity of normal human joint also increases and of diseased joint decreases.

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