Removing a boundary condition

[Bat585]

I'm trying to remove boundary conditions in the last step of a steady state analysis.

The problem is that the reaction forces are too important and removing the boundary conditions implies a too big movement of one of my parts.

-> Fixed time increment is too large

What should I do?


Thanx

Bat585

 

[Yoman228]

What happen when you changed the increment type to automatic instead of fixed and reduce the inital increment.

 

[Bat585]

Hi !

It doesn't change anything because I'm in static general analysis. Do you know what king of analyis would be better?

Bat585

 

[soildynamics]

what material are you analyzing

 

[corus]

It may be static but the analysis is still performed as a transient with a unit time and the boundary conditions ramped over that time. If by removing the boundary conditions you make the structure behave with rigid body motion then you won't get a solution anyhow.

corus

 

[Bat585]

Ok thanks for your answers. In fact it is ok if I put enough increments.