General Mechanical

General Mechanical

Topics related to Mechanical Enterprise, Motion, Additive Print and more.

Frictional Contact with High Amount of Gaps

    • turgut.ataseven
      Subscriber

      Hi. I want to simulate pin breakage by rotating a part around the vertical axis that is far behind, sinusoidally three times, as shown in the figure. Nonlinear Adaptive Region is defined for pin to simulate breakage accurately. But after defining a Frictional Contact (which always has a status of Open), as orange surfaces being contact and pin surface being target, rotating part just passes through the pin, causing no stress. Inner and outer surfaces should cause stress on pin during every collision. What can I do to perform this analysis?

    • Subhash Tadala
      Ansys Employee

      Hi, 

      Can you check it by increasing the pinball radius to a large value to include both the surfaces ?? 

      Also, how you are giving the timesteps in the load step while rotating ?  

      • turgut.ataseven
        Subscriber

        Hi,

        Submiting large pinball radius unfortunately did not work.

        I give sinusoidal Remote Displacement BC of ±3 ºto one of the faces of the rotating body, but instead of smooth sinusoidal curve, displacement curve increases and decreases at a constant rate. How can I imply a sinusoidal movement like one on the right side, instead of one on the left side?

    • Subhash Tadala
      Ansys Employee

      Increase the number of displacement points with respect to time/ you can use the function option to define the curve. Also please comment upon the timestepping you are using. Go with good number of substeps/time-steps to make the contact detected. 

    • peteroznewman
      Subscriber

      What is a pim?

      • turgut.ataseven
        Subscriber

        Sorry, "pin" is the accurate representation in English.

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