Error while running shape optimization in Optistruct: Messages for the job: *** ERROR # 1744 *** Missing BMESH ID 1 referenced by DSHAPE card.

Altair Forum User

While running shape optimization, I encountered this error message:

 

Messages for the job:

 
 *** ERROR # 1744 ***
 Missing BMESH ID 1 referenced by DSHAPE card.

 

Please, how can I resolve this. I am working in Optistruct. Thank you.

Altair Forum User

samuel88

 

I assume you created a free shape designvariable.

Under the option sidecon you assigned a barrier mesh component.

• If it is not necessary please remove it and update the design variable.

 

• If you need a barrier mesh be sure that the included elements of this component have the element type BMFACE assigned.

>> 2D > element types > 2D & 3D > tria3 quad4 = BMFACE  select the appropriate elements > update

 

This should solve the issue

 

Walk thru tutorial OS-5060 for reference

 

Kind regards

 

Juergen

Altair Forum User

It works.

 

Please, kindly post the link to the tutorial OS-5060

 

Please, I want to apply displacement boundary condition at some specific locations on my model in hypermesh (Optistruct). 

 

Please, see the attached picture. I have the coordinates of the locations  (x1, y1), (x2, y2), (x3, y3) and (x4, y4)  and their enforced displacements (displ_x1, displ_y1),  (displ_x2, displ_y2), (displ_x4, displ_y4) and (displ_x4, displ_y4) respectively. How can I create these locations on my model and  apply the displacement boundary conditions at these locations. Note that these locations are not among the nodes generated from meshing the model. 

 

 

 

Thank you.

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Altair Forum User

@samuel88

 

You can apply displacement as load on nodes. You can split the element at those locations and apply enforced displacement.