Applying displacement boundary condition in Optristruct in Hypermesh

Altair Forum User

I applied displacement boundary condition in Hypermesh (Optistruct). But I have this error message:

 

*** ERROR # 186 ***
 An SPCD component must be constrained by an SPC or SPC1 data.
      GRID ID = 22
    component = 1
  LOAD set ID = 3
   SPC set ID = 1
   subcase ID = 1

 

I attached my model.

 

I have read discussion on the forum but I don't understand what they are saying.

 

Please can someone tell me how to do it correctly? I will also appreciate a video tutorial or a sequence of screenshot on how to apply displacement boundary condition in Optistruct (Hypermesh). Thank you.

 

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Altair Forum User

Hi Samuel,

 

Constraint the nodes where SPCD is applied with SPCs with same Dofs as SPCD. 

Altair Forum User

Hi Prakash,

 

See the figures below:

 

I applied three different displacement boundary conditions, one at each node on my model. When I ran the analysis, I realized that the result is not giving the aggregate effect of all the displacements. Rather, it gives the analysis for each displacement boundary condition as each subcase. Kindly help me check the attached model (hm file) and indicate what I am doing wrong. My goal is to see the overall effect of applying three displacement boundary conditions and a fixed boundary condition, as shown on the model. Thank you.

 

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