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c.strohhacker1-Visitor
1-Visitor
May 17, 2011
Question

Gear tooth deflection - shrink fit

  • May 17, 2011
  • 11 replies
  • 7214 views

I need to run an analysis on a gear to see the tooth deflection induced by the shrink fit of the bore on to a shaft. Loading is easy just a simple pressure load applied on the bore, but how do I constrain it properly? I was thinking perhaps using a cyclic constraint? Any ideas?



Thanks,


Chris.

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    iapanovitch1-Visitor
    1-Visitor
    May 19, 2011





    Chris,

    Cyclic symmetry on a "pie slice" model in case of a strictly radial load/deformation (as in your case) is equivalent to the"reflective/mirror symmetry", so I'm not sure why it's not working for you, perhaps there's something else that's missing in your model. (Note that "reflective symmetry" couldn't replace "cyclic symmetry" if a tangential load was applied, as Jim Holst correctly points out.)

    However, that's not really important. If 1/4 model withmirror symmetry works for you, that's perfectly fine.

    The rest -- just minimally constrain the model in axial direction, as Stephen Seymour recommends, no need to use springs or overconstrain by applying on both sides.

    Regards,
    Yuri

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