RBE3 elements and boundary conditions

JJJ
JJJ Altair Community Member
edited October 2020 in Community Q&A

Good afternoon,

 

I am simulating a chassis structure, and I want to simulate the posibility that extreme supports can rotate (there is no restriction from wheels, as I send attached the picture. I am thinking into define a node, connect it with the two supports from my chassis, and restrict the dof of the node (X and Y displacements and X and Y rotations in one side, and Y displacements and X and Y rotations on the other side). How can I do that in Simlab? Thanks in advance.

Note: X and Y are included on the plane of the drawing.

<?xml version="1.0" encoding="UTF-8"?>chassis.jpg

<?xml version="1.0" encoding="UTF-8"?>chassis.jpg

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Answers

  • Nantha
    Nantha New Altair Community Member
    edited March 2020

    Hello JJJ

     

    You can connect the supports in the chassis to the defined node using RBE from Analysis > Loads & Constraints > Connectors > Manual RBE

     

    image.png.2d3de7e5e87f687e56a9507216748925.png                                    image.png.aa61f92ee893333e4ad5840d8d3008f0.png    

     

     

    image.png.faf52a7f33225ce9c21cd1c5a12886ca.png

     

     

    For restricting the DOF's of the Independent node of the created RBE's, apply Property from Analysis > Property. 

     

    Select the RBE's from the Model browser. Set the Entity as RigidBar & Type as Rbe2. Set the DOF of the Independent node in the DOF tab.

     

     

     

     image.png.fac3d4ab2f442b6081480ac9a770e393.png                image.png.42386ab1259a35eca4451ccdc504baa2.png

     

    Kindly let us know if you have any doubts.

     

    Thanks & Regards

    Nantha Kumar N

     

     

     

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