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How to define surface roughness for motion simulation?

Question asked by Valerie Pfening on Apr 10, 2013
Latest reply on Apr 10, 2013 by Jared Conway

Hi all,


I hope someone can help me.


I have a cylinder liner where a piston (with piston rings) is moving up and down.

Cylinder liners have a honed surface (Ra 4 - 8 µm). I have three different honing types and I want to identify the friction force with the motion simulation.

I really do not know how to define the roughness of the surface.