Body rested on rigid plane

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

If there are tires which are rested on the ground. To simulate this, I was thinking of considering ground as a rigid plane over which wheels are placed. What type of connection should be considered for line contact between tires and ground? Wheather a tie contact can be considered?

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Answers

  • Simon Križnik
    Simon Križnik Altair Community Member
    edited July 2018

    Hi dragon,

     

    tires in contact with the ground under gravity would result in a contact patch over an area.

    There are two approaches to model such behaviour:

     

    1. infinite rigid wal (Analysis>>Rigid walls)

    2. Type 7 –  ( General Purpose Interface )

     

    a.       Multi-usage impact interface, modeling contact between a master surface and a group of slave nodes.

    b.       General purpose interface and can simulate all types of impact between a set of nodes and a master surface.

     

    A tied contact Type 2 – ( Tied Interface ) would not model the contact the most accurately.

     

    a.       Tied Contacts define an interface that kinematically connects a set of slave nodes to a master surface.

    b.        This interface is used mainly for the connections.

    c.        It can be used to connect coarse and fine meshes, model spot-welds, rivets, etc

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2018

    HI,

     

    I think, to start with use RIGID wall with the tire which defines contact between the rigid and tire. 

     

    Yeah, as Ivan said, type 2 contact is not suitable. 

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