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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › A solid tube rotating at a constant 350 rpm erodes itself, why? › Reply To: A solid tube rotating at a constant 350 rpm erodes itself, why?

July 2, 2023 at 5:44 pm
javat33489
Subscriber

Hello sir.

I have a similar problem but in Ls-Dyna Workbench.

I have a rigid body - a drill, on it there are deformable bodies of bits. This is a test model.

I need to set a rotation speed of 27 rad/s and a feed of 40 mm/s. The drill is only rotated by the remote displacement when setting degrees. Velocity tool doesn't work, Rotation Velocity tool doesn't work.

Rigid angular velocity works, but then the feed does not work.

I'll try the Rigid Constraints tool and free up the bit for movement there, maybe that will help.

In Ls-Dyna Workbench, you cannot set a cylindrical coordinate system, perhaps this is the problem.

What do you say? I will attach the archive of the model.

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