How to constraint one directon of Dof.

Keita
Keita Altair Community Member
edited September 2021 in Community Q&A
Hello @ all,
 
Is it possible to constrain one direction of Dof?
 
I want to prevent the object expansion,but not shrinking.
 
For example:
I want to enable the entire red line to move toword the object(Blue allow symbol) and to block a DoF in the direction of gleen allow symbol.
 
Is it possible and how to do this?
 
Thanks for your help.
 
image
 
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Answers

  • Gildas GUILLY_21156
    Gildas GUILLY_21156
    Altair Employee
    edited September 2021

    Hello Keita,

    In  a linear static analysis, you can use dependant conditionning using SUPORT entities, in particular using a cylindrical coordinate system for the cylindrical shapes.
    Please take a look at document KB0113639 from knowledge base for details.

    In a non-linear analysis, you can do this by modelling the environment as rigid walls (mesh+RBODY), then generating contacts between your part and this environment.

    Gildas

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