Recent content by apcosta

Yes, that last part is fundamental. Thank you for showing interest in this problem!

Yes, the translation is due to rotation so that there is a permanent/persistent sliding at all points of the interface. So, you mean "a constant pitch helicoid surface"? Where could I find a proof? Thank you very much for your fast reaction!

TL;DR Summary: What should be the geometries of two contacting solids that may have a relative rotation and translation along the same axis? a) Consider two rigid bodies that have a relative motion characterized by a rotation and a translation with respect to the same axis (like a bolt and a...