Displacement and rotation boundary conditions for rigid bodies

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  • NataCalc
    Member
    • Jan 2019
    • 87

    Displacement and rotation boundary conditions for rigid bodies

    Hello,

    I am trying to apply displacement (x,y,z) and rotation (Rx,Ry,Rz) to rigid body. I do this step by step: (1 step) - fix y,z,Rx,Ry,Rz and displace in x ; (2 step) - fix x,z,Rx,Ry,Rz and displace in y and etc, in total 6 steps. I consider time span between displacement and rotation be constant. This leads to linear load curves which I defined following manner: load curve 1= [00;11]; load curve 2=[10, 21]; load curve 3=[20;31]; load curve 4=[30;41]; load curve 5=[40; 51]. The problem arises with negative Jacobian and failed and ended at step 5 which corresponds to rotation in Ry direction. Step 4 for rotation in Rx direction is working. Do I have differently to determine load curves for rotatio

    I do use stepStruct.Control for each step.

    Cheers,
    Nat
    Last edited by NataCalc; 06-11-2019, 07:03 PM. Reason: the wrong place to post this thread
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