How to issue APDL commands in a particular solver phase for a multistep analysis?

Ayush Kumar

I am performing a ModalSuperposition (MSUP) Harmonic analysis, when solved there are three solve phases:

1. Modal Solve
2. MSUP Harmonic Solve
3. MSUP Expansion Solve

I want to add custom APDL commands only to the MSUP Harmonic Solve using an ACT load object.

Ayush Kumar

You can do it by using the <load> object callback getcommands with the location attribute solve.

The callback passes ISolverData object as a second function argument. This object has an attribute SolveType, with which you can check for the solve phase of your multistep analysis. For example:

XML:

<load name="DemoLoad" version="1" caption="DemoLoad" icon="tload" color="#00FFFF">
  <callbacks>
    <getcommands location="solve">add_apdl_solve_commands</getcommands>
  </callbacks>          
</load>

Python:

def add_apdl_solve_commands(load, solver_data, stream):
    if solver_data.SolveType.ToString() == "MSUPHarmonic":
        stream.Write("/COM, **************************************************" + "\n")
        stream.Write("/COM, These commands will only be added before MSUP Harmonic Solve" + "\n")

PS: SolveType attribute is a SolveTypeEnum and to list all the entries in this Enum, just do a dir(SolveTypeEnum) in Mechanical Scripting Console.