Ball moves in U tunnel

bozhengbozheng Member Posts: 8

Dear Sir/Madam,

I use explicit dynamics to simulate the U tunnel. The contact is frictionless, the bottom is fixed, the initial velocity is 3m/s, the end time is 1s, total length is 3m. But the ball could not pass through the curve, can you help to find the problem? Thank you!

Bo


Answers

  • akhemkaakhemka Forum Coordinator Posts: 676

    Hi @bozheng ,


    Can you please share a snapshot of the results? Also, can you share snapshots of the setup?


    Regards,

    Ashish Khemka

  • bozhengbozheng Member Posts: 8

    Hello Ashish,

    Thanks for your reply. Please see the followings:

    1. simulation result: the ball could not pass through the curve and return back.

          2.Boudary condition:

    materials are all steel. contact 1&2 are frictionless


    Initial condition: velocity is 1.5 m/s

    fixed support is the bottom


    displacement is the following:


    Analysis settings is the following:

    Thanks you so much for your help.

    Best

    Bo

  • akhemkaakhemka Forum Coordinator Posts: 676

    Hi @bozheng ,


    Can you try improving the mesh near the bent and then check the result? By the way, you may use a transient analysis as well. We suggest an Explicit analysis for simulating scenarios occurring in a fraction of second.


    Regards,

    Ashish Khemka

  • bozhengbozheng Member Posts: 8

    Hello Ashish,

    Thanks for your reply. I will try.

    Best

    Bo

  • bozhengbozheng Member Posts: 8

    Hello Ashish,

    Thanks for your suggestion, I finished that simulation. I wonder if ansys has the function that when the ball pass through infrared sensor, infrared sensor can detect the ball? If Yes, how can I simulate it? Thank you.

    Best

    Bo


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