Most of the studies with respect to the use of water-lubricated journal bearing are mainly concerned with tribological performance, whereas few studies explore the noise characteristics of such bearing. In this study, the tribological and acoustic behavior of water-lubricated journal bearing is studied using a rigorous program containing combined CFD and two-way FSI procedures for simulating elastohydrodynamic simulation for a range of different bearing materials. To model cavitation in the bearing, the multiphase flow mixture model is employed, while acoustical properties are investigated through broadband noise source models. The numerical results demonstrate that the bearing deformation has a great effect on the tribological characteristics of water-lubricated journal bearing, and this effect cannot be ignored, especially in the case of bearing material with a low elasticity modulus. The results also indicate that the bearing noise is weakly sensitive to the bearing material employed. Furthermore, the effect of operating conditions such as rotational speed and eccentricity ratio on the acoustic and tribological indices are also discussed in detail.

大多数关于使用水润滑轴颈轴承的研究主要关注摩擦学性能，而很少有研究探讨这种轴承的噪声特性。在这项研究中，使用包含组合 CFD 和双向 FSI 程序的严格程序研究了水润滑轴颈轴承的摩擦学和声学行为，用于模拟一系列不同轴承材料的弹性流体动力学模拟。为了模拟轴承中的空化，采用了多相流混合模型，同时通过宽带噪声源模型研究了声学特性。数值结果表明，轴承变形对水润滑轴颈轴承的摩擦学特性有很大影响，这种影响不容忽视，特别是对于弹性模量低的轴承材料。结果还表明轴承噪声对所用轴承材料的敏感性较弱。此外，还详细讨论了转速和偏心率等操作条件对声学和摩擦学指标的影响。