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346gnu13-Aquamarine
13-Aquamarine
September 29, 2015
Question

Friction but no ground springs please

  • September 29, 2015
  • 1 reply
  • 1098 views

Hi,

I may have asked something similar before, possibly associated with large deformation analysis.

Friction requires large deformation analysis.

Am I right that we can't have a ground spring if we do the above?

Thanks

    1 reply

    G
    gkoch1-Visitor
    1-Visitor
    October 9, 2015

    I guess calculation of friction (contact) is nonlinear.

    Nonlinear analysis is not supported with non-simple spring - this has been confirmed for Creo Parametric 2.0

    (by mistake the article CS94508 was not visible - I changed this now)


    3
    346gnu13-AquamarineAuthor
    13-Aquamarine
    October 10, 2015

    Thank you Gunter,

    A work around used in these events is to have a simple point to point spring. Keep the points close together. Constrain one end of the spring with a normal displacement constraint effectively making it a ground spring.

    If stiffness is required in more than one direction, create mutually perpendicular springs to a common point, each spring's second point has its own displacement constraint (ground).

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