optistruct error

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

*** ERROR # 312 ***
  In static load case 1
  the compliance is negative or large -750756.
  Optimization/buckling analysis cannot be performed.
  due to possible rigid body mode.
  INFEASIBLE DESIGN (AT LEAST ONE CONSTRAINT VIOLATED).

 

can help me solve the error I am new in this software. Thanks

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited August 2016

    Hope you would be checking same as mentioned in below post.

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2016

    *** ERROR # 312 ***
     In static load case 1 
     the compliance is negative or large -6.93956e+007.
     Optimization/buckling analysis cannot be performed.
     due to possible rigid body mode.         
     INFEASIBLE DESIGN (AT LEAST ONE CONSTRAINT VIOLATED).    <?xml version="1.0" encoding="UTF-8"?>Capture.PNGI try to increase the constraints but the error still repeat.                                                           

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited September 2016

    Hi,

     

    Looks like the model is not constrained properly.

     

    Please cross check the model setup, constraints, check if there are any free nodes, and check for connections between different components/elements.

     

    If you still face the problem, I need the files to check what is going wrong :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>

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