Angle of rotation of a bead embedded in a support

[cel_male]

Hello Everyone,

I want to explain my problem. I am quite starter in Ansys... I have modeled a simple bead embedded in a support as you will see in the screenshot. Then I apply a torque onto the bead to make it rotate a bit. I want then to calculate the angle of rotation the bead I have made.
I have tried to define a directional displacement in a cylindrical coordinate system. Then I define a trajectory and follow the motion of this trajectory (which is actually a radius) in this new coordinate system.
The main issue is that I always get 0 in the value of the angle.

Thank you very much if you could help to address that issue...

 

[Achy47]

Hello there,

Thank you for sharing your problem with us. It sounds like you are facing some challenges with calculating the angle of rotation for your bead model in Ansys. I would suggest the following steps to help address your issue:

1. Check your model setup: Make sure that all the necessary boundary conditions and loads are properly defined in your model. Any missing or incorrect inputs can affect the accuracy of your results.

2. Use a more accurate element type: If you are using a simple element type, such as a beam or shell, try using a more accurate element type, such as a solid element. This can help improve the accuracy of your results.

3. Consider using a different coordinate system: Instead of using a cylindrical coordinate system, try using a Cartesian or polar coordinate system. This might provide a better understanding of the motion of your bead and help you calculate the angle of rotation more accurately.

4. Check your output settings: Make sure that you are specifying the correct output parameters in your analysis. For example, if you are interested in the angle of rotation, make sure that you are requesting that output in your analysis settings.

5. Verify your results: It is always a good practice to verify your results by comparing them with analytical or experimental data. This can help identify any potential errors in your model setup or analysis settings.

I hope these suggestions will help you address your issue. Good luck with your analysis!