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optistruct error

*** 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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Rahul Rajan_21763

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

Altair Forum User

*** 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"?>I try to increase the constraints but the error still repeat.

Altair Forum User

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'>