Numerical analysis of sliding bearing dynamic characteristics based on CFD
Authors:
Open Access
- 29 October 2017
- conference paper
- Published by IOP Publishing in Journal of Physics: Conference Series
- Vol. 916 (1) , 012025
Abstract
According to the characteristics of the flow field of the sliding bearing, the CFD numerical calculation model of the sliding bearing was established. The CFD method was used to simulate the flow field of the sliding bearing, and the pressure distribution of the sliding bearing flow field was obtained. Based on this, the stiffness and the damping coefficient of the dynamic characteristics were obtained by the dynamic grid technique. The influence of the rotational speed on the dynamic characteristic coefficient was further studied. The results show that the difference between the stiffness coefficient and the damping coefficient is less than 5%, and the accuracy of the model is verified. The absolute value of the oil film stiffness increases non-linearly with the increase of the rotational speed, and the influence of the rotational speed on the damping coefficient is small.Keywords
This publication has 2 references indexed in Scilit:
- Application of CFD Analysis for Rotating Machinery: Part 1 — Hydrodynamic, Hydrostatic Bearings and Squeeze Film Damper2003
- First Report on Friction ExperimentsProceedings of the Institution of Mechanical Engineers, 1883