Huge Displacement in 1D Static Analysis

lgr
lgr New Altair Community Member
edited October 2020 in Community Q&A

Hello,

 

I've been trying to do a 1D analysis of our FSAE chassis in Hypermesh and keep getting unreasonably large values for displacement. I did a modal analysis to check for connectivity and there was no issues with that. 

 


The .out file shows warning #5628 and #312. All of the other forum posts suggest the modal analysis here, which the chassis passed.

 

I did get reasonable displacement files when I applied the force in just the y direction, but I can't get it for multi component forces.

 

Anything I'm missing or doing wrong?

 

The model file is attached.

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    Hi @lgr

     

    Constraints are not modeled correctly. Please constrain in all 6Dof and try again. 

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