Stationary Position for Hybrid Journal Bearing with Horizontal Point Injection Ports
This paper deals with the modeling and identification of a stationary eccentricity and attitude angle for a short journal bearing with horizontal point injection port. In modeling we use the Dirac spatial delta function which allows to obtain a pressure field in a close analytical form. After using the pressure force components in the oil film, which is the addition of the Ocvirck force in the classic case and pressure force we obtain a non linear equations system with respect to stationary eccentricity and attitude angle. We found the solution equation system by obtaining the roots using the program MATHEMATICA 6 and by iteration. We developed and analyzed the work by both point pressurizing ports π/2 and 3π/2 in the journal bearing. The results are presented in tables that show the relation between eccentricity, attitude angle and the Sommerfeld´s number S.
Alexander Balankin, José Martínez Trinidad and Orlando Susarrey Huerta
V.R. Nossov et al., "Stationary Position for Hybrid Journal Bearing with Horizontal Point Injection Ports", Key Engineering Materials, Vol. 449, pp. 29-36, 2010