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Rizzo

DOF only locked in one direction

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Hello @ all,


 


Is it possible to lock a DOF in only one direction/way?


 


For example:


I want to block a DOF in the 'minus x direction', but it should be able to move in the positiv way.


 


Is it possible and how to do this?


 


 


Thanks for your help.


 


 


Greets,


Thomas


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Hi Thomas,

 

here is a workaround using GAP elements (as Tinh suggested)

 

This can be accomplished using gap elements. Please refer below for the steps. 

1. Create a duplicate node and translate it along negative X direction (any small distance.) 
2. Create a gap element such that N1  N2 is directed in negative X direction. (Make sure to place the gap element in separate collector) 
3. Create a PGAP property and assign it to the CGAP element. 
4. Card edit the PGAP property and enter say KB = 2E+20 (basically a high value) 

This will restrict the motion of the node (N1) in negative X direction.

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