The main point of this study is to propose an advanced model for large length-diameter ratio stern water-lubricated rubber bearing and conduct comparisons with the conventional water-lubricated rubber bearing model. The assumption of the advanced model was to divide the whole stern bearing into 4 sections equidistantly along the axial direction. Among each small section, the water film pressure distribution was solved and water film forces were generated. The dynamic model of the rotor-bearing system was built based on Finite Element Method (FEM) and solved by Newmark Method. It indicated that the predicted shaft centerline locus of the nodes located at the propeller and left water-lubricated rubber bearing rise significantly when using the new water-lubricated rubber bearing model.

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