Recent content by apcosta

  1. apcosta

    What should be the geometries of two contacting solids that may have a relative rotation and translation along the same axis?

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

    What should be the geometries of two contacting solids that may have a relative rotation and translation along the same axis?

    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!
  3. apcosta

    What should be the geometries of two contacting solids that may have a relative rotation and translation along the same axis?

    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...