Abstract In the present work, the optimal geometric parameters of a double slope aft stern-tube bearing are determined, for (a) maximizing the ‘effective pressure’ area between the bearing and the propeller shaft, and (b) minimizing the maximum local pressure exerted on the bearing surface. The aft stern-tube bearing design is modeled parametrically, taking into account the elastic shaft geometry. The computational approach used evolves from the solution of the Reynolds differential equation, which yields bearing operational parameters. The system is coupled to a general-purpose optimizer to calculate the optimum geometry based on two objective functions. Optimum designs for single and double slope bearings are calculated, and the performance parameters of these designs are compared for normal and extreme operational conditions.

中文翻译：

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艉轴管轴承单双斜度最佳设计的摩擦学比较，船舶案例研究

摘要 在目前的工作中，确定了双斜度尾管轴承的最佳几何参数，用于 (a) 最大化轴承和螺旋桨轴之间的“有效压力”区域，以及 (b) 最小化最大局部压力施加在轴承表面上。考虑到弹性轴的几何形状，船尾管轴承设计以参数方式建模。所使用的计算方法从雷诺微分方程的解演变而来，该方程产生轴承操作参数。该系统与通用优化器耦合，以根据两个目标函数计算最佳几何形状。计算了单斜面轴承和双斜面轴承的最佳设计，并在正常和极端操作条件下比较了这些设计的性能参数。