Clear Filters
Clear Filters

How to calculate Friction force for Journal Bearing ?

7 views (last 30 days)
After the formation of Reynold's equation for journal bearing, we discretised it and found the pressure and load variation.
Now, How can we use matlab to find the friction force for the journal bearing using the discretised pressure equation ?
  1 Comment
Sam Chak
Sam Chak on 30 Sep 2023
@Pratyush, could you please provide the mathematical formula for the friction force? This will help us figure out how to compute it in MATLAB.

Sign in to comment.

Answers (1)

Varun
Varun on 25 Oct 2023
Hi Pratyush,
I understand that you have discrete pressure variation for journal bearing and you want to find the friction force for the journal bearing using it.
Please refer to the following example code snippet with dummy values:
% Define your discretized pressure distribution (P) and other parameters
% ...
% Calculate the load by integrating pressure over the bearing area
bearing_area = pi * bearing_radius^2; % Assuming a circular bearing
total_load = sum(sum(P)) * bearing_area;
% Define the coefficient of friction (μ) based on your system's properties
coefficient_of_friction = 0.1; % Adjust as needed
% Calculate the friction force
friction_force = coefficient_of_friction * total_load;
% Display the result
fprintf('Friction Force: %.2f N\n', friction_force);
The formula "bearing_area = pi * bearing_radius^2" for the bearing area assumes that the bearing is a simple circular journal bearing with a flat surface. In some cases, journal bearings may have more complex geometries, such as curved surfaces or contours. In such situations, the calculation of the bearing area would be more involved, and you would need to account for the actual surface geometry.
Hope this helps.

Categories

Find more on Programming in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!