This paper analyzes the performance of hydrodynamic journal bearings by applying the control-volume method to solve the average lubrication equation for grain flow. The grain characteristics, including the particle size and the grain-grain collision elasticity are investigated. The nondimensional load, attitude angle, friction coefficient, and side flow are explored for different eccentricity and diameter-to-width ratios. The numerical results provide an understanding of the performance of powder lubricated journal bearings and are consistent with the experimental findings of Heshmat and Brewe.
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films