In recent times, there has been an increasing use of smart fluids in fluid film bearing applications so as to control the bearing performance. A magneto-rheological fluid exhibits excellent characteristics and dynamic controllability. The developed model in the present work examines the non-linear behavior of magneto-rheological fluid on performance of micro-grooved hole-entry hybrid spherical journal bearing system. The various geometric shapes of the micro-grooves i.e., rectangular, circular and triangular have been considered so as to study the effect of geometric shapes of micro-grooves on the bearing performance. The modified Reynolds equation along with restrictor flow equation is solved using Finite element method. The numerically simulated results indicate that use of micro-grooves and magneto-rheological fluid improves the value of minimum fluid film thickness and stability of bearing system. The developed model is expected to be beneficial for design and analysis of hybrid hole-entry spherical journal bearings.

近年来，越来越多地在流体膜轴承应用中使用智能流体，以控制轴承性能。磁流变流体表现出优异的特性和动态可控性。目前工作中开发的模型检查了磁流变流体对微槽孔进入混合球面轴颈轴承系统性能的非线性行为。考虑了微槽的各种几何形状，即矩形、圆形和三角形，以研究微槽的几何形状对轴承性能的影响。使用有限元方法求解修正的雷诺方程和限流器流动方程。数值模拟结果表明，微槽和磁流变液的使用提高了轴承系统的最小液膜厚度和稳定性。所开发的模型有望有利于混合式入孔球面轴颈轴承的设计和分析。