I am trying to apply moving load representing a smart inspection pig moving through the pipe as some speed on top of operating pressure. And I also want to add this moving load to a load combination. How to model in AutoPIPE?
Fluid transient isn't any use for a pig only FTH (Force Time History). Model this as a single slug flow wave and add Slug flow load case to your combinations.
Bentley has a training for Slug Flow that people could attend. Suggest checking the Learn Server for when the next training class will become available.
Modeling Approaches in AutoPIPE