Abstract
In order to establish an analytical procedure for viscoelastic fluid film lubrication, a modified Reynolds equation for finite-width bearings based on a nonlinear four-element model was derived in the first paper. In the second and third papers the effects of nonlinear viscoelastic characteristics on the film pressure of parallel circular bearings were discussed by comparing the theories with the experiments. In this paper, by applying the modified Reynolds equation to a finite-width journal bearing which is vibrated sinusoidally in one direction, the numerical procedure for finite-width bearings is clarified and the bearing performance is calculated theoretically. In addition, experiments of finite-width journal bearings using lubricating oils containing high molecular-weight polymers as viscoelastic fluids are carried out, and good agreement is shown between the experimental results and the theoretical predictions.
| Original language | English |
|---|---|
| Pages (from-to) | 735-742 |
| Number of pages | 8 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series C |
| Volume | 54 |
| Issue number | 499 |
| DOIs | |
| Publication status | Published - 1988 |
| Externally published | Yes |
Keywords
- Finite-width Jounal Bearing
- Four-element Model
- Lubricant
- Lubrication Theory
- Sinusoidal Squeezing Motion
- Viscoelastic Fluid
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering