Hello everyone, I want to run a multi-step analysis in ANSYS Mechanical APDL. I have 83 load cases. The force is located at the same elements, the force direction is the same, the boundary conditions are the same, the only thing that changes is the value of the force. It is quite difficult to create 83 different files. If there is a way to run such an analysis, please let me know. Thank you.
Yes, you can automate the process of running the 83 load cases in ANSYS Mechanical APDL using a macro. A macro is a set of commands that can be executed in sequence in ANSYS Mechanical APDL to automate a series of tasks.
Here is a general approach you can follow:
Here is an example of what the macro could look like:
Define parameter
*DIM,F,PARAM,83,1
! Set values for F
F(1)=100
F(2)=200
F(3)=300
... (and so on for all 83 values)
! Loop over load cases
*DO,i,1,83
! Set up analysis
... (commands to set up analysis)
! Apply boundary conditions
... (commands to apply boundary conditions)
! Define force
FVAL = F(i)
... (commands to define force using FVAL)
! Solve
... (command to solve) *ENDDO
In this example, the *DIM command defines the parameter F with 83 values. The loop *DO,i,1,83 runs the commands within it for each value of i from 1 to 83. The command FVAL = F(i) assigns the current value of F to a variable called FVAL, which is used to define the force in the analysis.
You can modify this example to include the specific commands required for your analysis. Once you have created the macro, you can run it using the /INPUT command in ANSYS Mechanical APDL.
I hope this helps! Let me know if you have any further questions.
I had once developed a script to automate Time History... maybe i can modify it to remove time stamps and give it to you... need to ransack my backups
You can find the "as-is" program here:
https://rahulleslie.blogspot.com/p/time-history-input-file-generator-for.html
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