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Adams General Forum ADAMS/Simulink Cosimulation: How to deactivate a motion or joint in ADAMS during a cosimulation?

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ADAMS/Simulink Cosimulation: How to deactivate a motion or joint in ADAMS during a cosimulation?

jsph_inc over 4 years ago

Hello,

I'm running an ADAMS/Simulink Cosimulation and would like to deactivate a motion or joint after a set time.

Typically I do this in ADAMS through the simulation script "deactivate" command but can't find a way to do this during a cosimulation.

Any suggestions would be a great help.

joseph.

0 Jesper Slattengren over 4 years ago

Replace the joint with one or more GCON. There are documentation on which equations are needed to replicate each joint.

Then you have to add a turn-off signal to the equation. For example:

fun=IF(VARVAL(turn_off):1,1,0)*(std_equation)

Now this joint will be active as long as the solver variable turn_off is negative or zero and will deactivate when the variable is positive.

Now you just have to define the right function for turn_off. For example

-10+time

will turn off the joint when time is greater than 10.
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0 jsph_inc over 4 years ago

Thanks for the help JSlat! I will try it.

Was hoping to have access to the deactivate command during cosimulation but seems like it's not the case since it's driven in the Simulink environment.

thanks again.

joe.
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