The answer from one of the ANSIS specialists disappeared, he recommended me to adjust the number of cycles. This did not help, the calculation still lasts 30 seconds.
But here's what I noticed.
I received a warning about time steps. Then I added time steps to the setting. I also changed the contact to AUTOMATIC_SURFACE_TO_SURFACE. And then I see that the ring has moved into the rubber, but there is no contact, the calculation still lasted about 30 seconds.
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Then I increased the step again. And I saw that the calculation would take quite a long time, but it lasted very quickly again.
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Why? Please help.
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