General Mechanical

General Mechanical

Frequency Response of wheel

    • mohfazarosyada


      Currently, I'm trying to do an optimization of the rolling stock wheel in terms of the frequency response and its structural strength. I start with modal analysis, then link it to the harmonic response and structural analysis. The mode shapes from the modal analysis are near what I expected to be, just have a minor difference which I think is pretty normal.

      I found difficulties in the harmonic response and structural analysis. First, what is the correct approach to give force to the wheel (include the harmonic force)? In my understanding, it should be a contact force from the rail. I tried to use a nodal force, but the result is not what I expected. While making a split face is difficult on a curved face, I still not able to try this solution. If a make a rail as a ground, it will ruin the modal analysis and always give me an error. Second, since I want to see the response from 100 -5000 Hz with 1 Hz frequency spacing, it takes a lot of time and resources for one run simulation. Does anyone have any suggestions on what I need to do?

      Thanks for the attention and answers.

      Regards, Faza

    • Ashish Khemka
      Ansys Employee

      Please see if the following course helps you.
      Harmonic Analysis of Structures - ANSYS Innovation Courses

      Regards Ashish Khemka
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