General Mechanical

General Mechanical

Regarding Herztian Contact Stresses

    • Surya2019
      Subscriber
    • Chandra Sekaran
      Ansys Employee
      I have used fixed joint to fix the rolling elemnts to the surface of the shaft in contact I did not understand this as you already have a frictional contact between the rolling elements and the surface of the shaft. May be you meant the shaft is fixed from rotating? I think what you have may be good enough if you are transferring load but for accurate contact stresses you will need finer, higher quality mesh. BTW I see a previous discussion on Hertzian contact at https://forum.ansys.com/discussion/10375/modeling-hertzian-contact-stress-in-line-contact-by-two-cylinders. This specifically mentions Use a very fine mesh to resolve the stress below the surface at the point of contact. There is a Mesh control called Sizing using Sphere of Influence. First create a Coordinate System at the point of contact (unless that is the Global Coordinate System)I also did a quick Google search for hertzian contact ansys and this turns up several papers and even Youtube videos. n
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