Does ADAMS user subroutines follow a specific order when solving GFORCE requests such as the GFORCE ID number in ascending order? If it does can GFORCE calculations of smaller IDs be used in calculations of GFORCE larger ID numbers using COMMON variables

0 Henrik.Skovbjerg over 4 years ago

You talk about requests and then forces ...

Requests are calculated after the solver simulation step is finished, hence all GFORCES will already have a value.

When having GFORCE subroutines (or any kind of force subroutine), you can get values from other elements in your model by using the SYSFNC and SYSARY calls. This will automatically setup a dependency, so that the called values are calculated properly before they deliver their result.
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0 MWilmer over 4 years ago

Thanks Henrik for your reply. I am sorry that I did not phrase the question clearly. Does the ADAMS solver calculate forces using a user subroutine in a specific order such as the GFORCE ID number? Please let me know.

Thanks again for your help.
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0 Jesper Slattengren over 4 years ago

No, as Henrik said, ADAMS determines the dependencies and calculates all elements according to that sequence.

So first TIME. Time does not depend on anything.

Then elements that are a function of time only.

Then elements that are only dependent on those.

And so on. Nothing is calculated before all it's dependencies are evaluated.

Sometime you will get a warning about circular dependencies, but they are usually relatively easy to handle.
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0 MWilmer over 4 years ago

Makes sense. Thank you for your help.
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