*ERROR in cascade: the DOF corresponding to node 1 in direction 1 is detected on the dependent side of a MPC and a SPC

[PaoPao1970]

I would like to evaluate simple contact analysis.
But prepomax show below error.
Could you let me know how to set parameter ?

[PaoPao1970]

Sorry very much … I found type miss on above figure.

[FEAnalyst]

If the whole part is fixed, boundary condition and contact acting in the same region are causing overconstraint. Use rigid body constraint instead of fixed BC for that rigid part.

[PaoPao1970]

Dear FEAnalyst san,

Thank you very much!!!
If possible,Could you help chkeck my program ?
I don’t know why my problem can not run …

test.pmx (595.9 KB)

[FEAnalyst]

I was thinking about applying rigid body constraint to that small cube in the middle (if it’s supposed to be undeformable).

[PaoPao1970]

Dear FEAnalyst san,

Thank you very much for your kindly reply!!!
I changed my code…
But Analysis failed…

[PaoPao1970]

test.pmx (606.6 KB)

[FEAnalyst]

It will work if you apply the boundary condition to the reference point instead of applying it directly to the part.

[ANYS]

Hi Pao,

Check the effect of increasing or reducing de K parameter.

Contact.pmx (41.2 KB)

[PaoPao1970]

Dear FEAnalyst san, ANYS san,

Thnak you very much!!!
My code run well!!