I am writing a code in matlab for multi-body dynamic modeling of a bearing test rig that includes 2 cylindrical roller bearings, 2 housings, and a shaft. Based on equations of motion we need to use stiffness of the housing in x and y dir and also shaft stiffness in x and y dir. Most of the papers have shown these parameters in a table without showing how they have been calculated. That is why I need to model them by FEM to measure these values. The housing is on a steel plate, and the plate is placed on a concrete surface. If I apply a bearing load to the bearing inside the housing as shown in the picture, and then measure the vertical displacement of the steel plate or the bottom surface of the housing, and then use f=kx equation, is this method correct? how about for the shaft? Could I use load-deflection equation of a 2 side clamped beam? Thank you for any response and suggestions.
Before making it more complex, I suggest you to go with direct Ansys workbench package. Then a matlab software can beused to solve the case.
Contact generation and many other have to be checked
Arun Patil Thank you for your response! But actually, I did not clearly understand what you mean by going with direct Ansys workbench? I am using Ansys workbench, and for the contact, I just considered 4 rollers in the loaded zone with bonded contact. Once I have a good estimation of the bearing housing and shaft stiffness, I can run my Matlab code. Thank you!
you can do it in modulus transient structural in ansys workbench. in other word, if you want to analysis the coupled dynamic and finite element model in ansys you should use transient structural. in this modulus you can find stress strain and other FEM results in dynamic problem in each time step.
- Badges
- Science topic
- Similar topics
- Geoscience
- Asia
- India