Reason for Large Rotations in Analysis

Rahul_P1
Rahul_P1
Altair Employee
edited October 2020 in Community Q&A

Large Rotations in Analysis

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  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited November 2014

    Hello,

    in postprocessing, you might find a behaviour, where your model seems to be rotating very heavily and is deformed in the results view.
    Drehlager.jpg
    The reason might be that you need to apply Non-linear geometry analysis, when having high deformations or rotations. The linear geometry assumption is only valid for small deflections, where the error is negligible. For an example as shown above, please use NLGEOM as a subcase type. See the description in the online help and below.

    Jan

    cq28y-Drehlager.jpg
    6f904-Clipboard05.jpg

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