Title: Lubrication characteristics of MRF ship stern tube bearing based on nitrile rubber

Authors: Shengdong Zhang

Addresses: School of Industry, Jining University, Jining, China

Abstract: A mathematical calculation model of the magnetorheological fluid stern tube bearing based on nitrile rubber (MRF-STB-NR), was proposed, and established in this study, considering the coupling influence of eccentricity, temperature, and magnetic field strength. The lubricating film in both the circumferential and axial directions was evenly divided using the finite difference method, and the pressure distribution of the lubricating film was calculated using the successive over relaxation (SOR) iteration method. The study investigates the influence of eccentricity, temperature, and magnetic field strength on the total force, friction coefficient, lubricating film pressure, and lubricating film thickness of the MRF-STB-NR. The results show that the bearing capacity of MRF-STB-NR can be improved, and the friction coefficient is reduced by increasing temperature, magnetic field strength, and eccentricity.

Keywords: stern tube bearing; STB; magnetorheological fluids; MRF; eccentricity; lubrication characteristics; successive over relaxation; SOR.

DOI: 10.1504/IJESMS.2024.141978

International Journal of Engineering Systems Modelling and Simulation, 2024 Vol.15 No.6, pp.300 - 309

Accepted: 23 Jun 2023
Published online: 04 Oct 2024 *

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