Facet Joints model drivers

Main Forum
1

Hi,

I would like to include the arms in the Facet Joint model, but if I activate them and try to run a simulation the ‘initial condition’ operation fails because the model is kinematically indeterminate. I understand the two arms need to be driven by the drivers, but I don’t know how to do it. Is it possible to activate pre-defined drivers for the arms?

Thank you,

Michele

2

Hi Michele,

You can either switch on default drivers looking at how it is done in other examples, or copy arm drivers from another model.

I copied the arm driver files from the StandingModel into Model subfolder, and included them like this:

    AnyFolder ModelEnvironmentConnection = {
      #include "Model/JointsAndDriversSimple.any"
      #include "Model/RightArmDrivers.any"
      #include "Model/LeftArmDrivers.any"
    }; // ModelEnvironmentConnection

I had to adjust a couple of references in the files because the model structure was a little bit different. But the content is completely the same as in StandingModel. Please find these files attached.

Kind regards, Pavel

3

Thank you Pavel, that worked perfectly.

Best,

Michele