One-dimensional Slider Bearing — Lesson 3

This lesson covers the analysis of a one-dimensional slider bearing, also known as a sleeper bearing or thrust bearing. The lesson begins with a discussion on the general Reynolds equation for lubrication, which is used to estimate the pressure distribution inside the slider bearing. The lesson then delves into the assumptions made during the analysis, including the use of incompressible lubricant, neglecting inertia terms, and considering a steady state. The lesson further explains the process of calculating the velocity distribution, volumetric flow rate, and pressure distribution inside the slider bearing. The lesson concludes with the calculation of the load bearing capacity and the force required to move the bottom surface. An example of a one-dimensional slider bearing is used throughout the lesson to illustrate these concepts.

Video Highlights

00:40 - Explanation of the 1-dimensional slider bearing.
03:24 - Explanation of the Reynolds equation for the slider bearing.
05:30 - Calculation of the velocity distribution and volumetric flow rate.
09:06 - Explanation of the pressure distribution inside the slider bearing.
22:46 - Calculation of the load capacity, shear force per unit width and power loss dragging the fluid.
33:32 - Plotting of the graphs of non-dimensional pressure difference, volumetric flow rate,non-dimensional load bearing capacity, shear force per unit width.

Key Takeaways

- The general Reynolds equation for lubrication is used to estimate the pressure distribution inside a slider bearing.
- Assumptions made during the analysis include the use of incompressible lubricant, neglecting inertia terms, and considering a steady state.
- The velocity distribution, volumetric flow rate, and pressure distribution inside the slider bearing are calculated using the Reynolds equation.
- The load bearing capacity and the force required to move the bottom surface are also calculated.