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Anyone use fusion 360? How do I combine simulations?

Discussion in 'Off-Topic Discussion' started by soggyBottom, May 30, 2021.

  1. May 30, 2021 at 4:07 AM
    #1
    soggyBottom

    soggyBottom [OP] Well-Known Member

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    I have no professional experience in any of this, it's just a hobby for me.


    I have an upper control arm for an RC car that I designed with the help of running simulations in fusion. I'm running 2 separate simulations.

    1) tortional flex twisting around the x-axis
    2) load around the z axis

    Is there a way to combine simulations? Should I just add all the loads to a single simulation? Should I keep them separate?

    upper_arm_1.jpg
    upper_arm_2.jpg
     
  2. May 30, 2021 at 4:15 AM
    #2
    Hercanstein

    Hercanstein Well-Known Member

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    Sorry, I use SolidWorks, but I think I would add all the loads to a single simulation.
     
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  3. May 30, 2021 at 4:30 AM
    #3
    Hercanstein

    Hercanstein Well-Known Member

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    Did it work?
     
  4. May 30, 2021 at 5:40 AM
    #4
    soggyBottom

    soggyBottom [OP] Well-Known Member

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    I'm not sure. There are 3 forces in this image. Note the 3 arrows on the right side. Up/down and 1 pointing at the camera view. I think forces are canceling each other out.

    Capture.jpg
     
  5. May 30, 2021 at 8:53 AM
    #5
    Hercanstein

    Hercanstein Well-Known Member

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    Remove one of the up or down forces.
     
  6. May 30, 2021 at 9:08 AM
    #6
    Gutentight

    Gutentight Well-Known Member

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    I have not played with the F360 simulation but in general pick your boundary conditions carefully to get anything meaningful.

    Consider if something is constrained in vertical, but able to slide on bounding surfaces (micro motion until some other constraint stops it) to relieve some tension. Then maybe you have a single force on the other side of the arm, which your displacement boundary naturally develops a reaction force (not directly applied force at that spot).

    The combined loading state is needed if you want the true stress profile as twisting and bending will interact to move the stress hot spots around.
     
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  7. May 30, 2021 at 10:03 AM
    #7
    Hercanstein

    Hercanstein Well-Known Member

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    This sounds like you have a good understanding of this subject. Much more in depth than mine.

    Thank you for your input.

    : )B
     
  8. May 30, 2021 at 4:00 PM
    #8
    koditten

    koditten Well-Known Member

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    F360 user here as well.

    I'm just 2D so far.

    Fabricator/welder that went down the CNC plasma table rabbit hole.

    Bumping the thread just because I can:)

    Ko
     
  9. May 30, 2021 at 6:18 PM
    #9
    soggyBottom

    soggyBottom [OP] Well-Known Member

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    So it sounds like I the way to go is to simulate all the permutations which in this case are just 2 of them. Is that correct?
     

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