Analysis of the Effect of the Slip-Pocket in Single and Double Parallel Bearing Considering Cavitation: A Theoretical Approach

Abstract

In this paper, based on an analytical approach, the effect of pockets and boundary slip on the hydrodynamic performance of parallel sliding surfaces considering cavitation is investigated. A modified Reynolds theory is developed for solving two kinds of bearings: a single and a double pocket bearing. The performance is compared with respect to the variation of the pocket depth, pocket length, slip, and no-slip situation. The results show that the maximum pressure and load support increases with the reduction in pocket length. The main finding is that the pocket depth reduces the cavitation area. However, in the case of a single pocket, the role of pocket depth is more significant in reducing the cavitation effect than that in the case of a double pocket bearing.

Reynolds Model versus JFO Theory in Steadily Loaded Journal Bearings

“…The effect of the oil film reformation boundary on the Reynolds model's accuracy is unclear. In practical calculations, the cavitation pressures of 0 Pa and lower than 0 Pa are both applied [9][10][11][12]. The Reynolds model with a cavitation pressure lower than 0 Pa has not been fully studied.…”