Abstract In present work, in order to optimize partial slip zone for heavily loaded journal bearings, an isothermal hydrodynamic model considering wall slip occurring at oil-bush interface is built. Two-component slip model is utilized to calculate slip velocity. The performances of the journal bearing in different slip zone shapes and eccentricity ratios are evaluated. The optimal slip parameters in a range of eccentricity ratios are selected by considering their effects on hydrodynamic behavior, such as load carrying capacity and friction coefficient/torque. In addition, the application of optimal partial slip zone is presented. Results show that the optimal range of slip zone in high eccentricity ratio is quite restricted. The slip zone should be located at the convergent region of the film. The circumferential end of slip zone should locate at the convergent region and be close to the position of minimum film thickness. It is better to widen the axial length of slip zone, i.e. maximum rectangular shape could better improve bearing performance.

中文翻译：

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部分壁面滑动滑动滑动轴承的优化性能

摘要 在目前的工作中，为了优化重载轴颈轴承的局部滑移区，建立了考虑在油-衬套界面发生壁滑移的等温流体动力学模型。利用二分量滑移模型计算滑移速度。评估了轴颈轴承在不同滑移区形状和偏心比下的性能。偏心比范围内的最佳滑移参数是通过考虑它们对流体动力学行为的影响来选择的，例如承载能力和摩擦系数/扭矩。此外，还介绍了最优局部滑移区的应用。结果表明，高偏心比下滑移区的最佳范围受到很大限制。滑移区应位于薄膜的会聚区。滑移区的圆周端应位于会聚区并靠近最小油膜厚度的位置。滑动区的轴向长度最好加宽，即最大矩形形状可以更好地提高轴承性能。