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impossible displacement and no von mises strain

User: "mirko088"
Altair Community Member
Updated by mirko088

Hi, I have a problem with my model . This is my first analysis with optistruct. 
By displaying the results of the analysis I get an off-scale shift, also I don't get the results in Von Mises. In the skin it gives me a value of zero while in the solid it gives me no value. What are the problems? I have attached a model and some images. The constraint is an interlocking while the forces are: gravity, centrifugal force, drag and lift. 

<?xml version="1.0" encoding="UTF-8"?>Annotazione 2020-05-25 195253.png

<?xml version="1.0" encoding="UTF-8"?>Annotazione 2020-05-25 195253s.png

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    User: "QuyNguyenDai"
    Altair Community Member
    Updated by QuyNguyenDai

    Make a simple test with ONLY gravity load?

     

    User: "mirko088"
    Altair Community Member
    OP
    Updated by mirko088


    Hi thank you for the interest, I made the mesh again because I had connectivity errors, the problem is that I get too high displacements. I am considering the centrifugal force through the Rforce card and then I would have a lift force along Z. If I run the analysis with only the Rforce load I get a displacement of 44 mm while as soon as I also insert the lift I get a displacement of 8 meters. Where am I wrong?