Define Attackpoint for Force/ Simple Question?
Altair EmployeeHello everyone,
i do a FEM Project with HyperMesh and now im at a point where i need some help 
(First time with HyperMesh)
I have to do a FEM analysis where various forces attack a beam. The Problem is that the Beam is not symmetrical but i have to define a Force in direction to the Z-axis. (Picture 2) The Force should attack at the center of gravity otherwise the beam will be twisted.
My Question is:
Where/ how can i define that point (cog) or force where the beam only bends down and dont twist?
previous attempts:
- Pic 3. --> But it twisted. It is logical because of the lever arm
- Singe Force on the Top of the beam near the CoG but also twisted
My Solver is Optistruct.
Pic1.
<?xml version="1.0" encoding="UTF-8"?>
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Thanks
Pic.2 (Force F has to been define )
<?xml version="1.0" encoding="UTF-8"?>
Pic 3
<?xml version="1.0" encoding="UTF-8"?>
Answers
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Hi Samorit
Can u share the model file. I will check and update
You can use secure transfer link if needed
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Hi Pranav Hari
Yes of cause.
I found out how to see the coordinations of cog and created a node there. This is also the attackpoint of force. But i cannot create a connection with the center of gravity and the element of my mesh..
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Hi @Samorit
Since you know the CoG, you can create a node there and create an RBE3 element to distribute your loads in the cross section
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