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346gnu13-Aquamarine
13-Aquamarine
Sep 29, 2015 8:46 PM UTC
Question

Friction but no ground springs please

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

    2 replies

    gkoch2-Explorer
    2-Explorer
    Oct 9, 2015 5:25 PM UTC

    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)


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    346gnu13-AquamarineAuthor
    13-Aquamarine
    Oct 10, 2015 3:55 PM UTC

    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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