Why do we have to assign properties for RBE2?

alpha_21885
alpha_21885 Altair Community Member
edited October 2020 in Community Q&A

My models have many bolt-holes. I use RBE2 to make connection.

 

However, it is very inconvenient whenever I create new RBE2, I have to update Property (rigidbar, rb2) and I also have to add to my solution again.

In HyperMesh, I creat create RBE2/RBE3 and do not care about the properties of them?

 

May I know if there is any ways to create new created RBE2 without define properties and it can be update on current Solution automatically?

 

 

Thanks

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Answers

  • Elaine Muniz_22287
    Elaine Muniz_22287
    Altair Employee
    edited October 2020

    Hi! 

    Property needs to be assigned for RBE in SL because is where we can define the DOF of the RBE and the element type with respect to solver type. At HM we do this in the creation/update panel.

    If you do not create a property, SimLab will ask if it can create a default one to the components that do not have a predefined one. So, unless you want to edit something of the property, you can just allow SL create the default when update the model (run).


    Anyway, a tip: If you are creating too many bolts, I recommend to take a look at SimLab's automatic bolt creation. It's very easy and fast, and will create the properties for you too:
    Video: https://web.altair.com/altair-for-simlab-learning-center-trls > Bolts > 1D bolt creation 

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