Learning Forum

[Leandro Chaves Fonseca]

Hello everyone,

Resumed problem: after updating all design points, I decided that I needed more information, so I extracted more data from the solution by adding another User Defined Result under the Solution outline. After doing this in the mechanical interface, the workbench parameters tab show that all others (except current) Design Points become invalidated.

 

Full Problem: Ansys 2023-R2. Student License (problem also happens at the university's Ansys with Enterprise license)

I started a Explicit Dynamics study of ballistic impact of a single projectile against a plate (only one analysis system). Geometry was built with DesignModeler. Input parameters are yaw angle (Part Transform Rotate Y) and striking velocity (Initial Conditions). There are additional input parameters in the geometry (projectile diameter, projectile length and plate thickness), however, they are kept constant and equal for all Design Points. Output parameters are Average VX, Average VY and Average VZ. All Design Points have retained data checked.

After running for more than 200 Design Points, and with some preliminar results, I concluded that I would need to extract additional information from the retained data, such as directional LOC_DEF and accelerations. When I proceed to create new User Defined Results under the solution outline, I managed to extract information only for the current design, and when I go back to Workbench Parameters' Table Pane, all other design points become invalidate (yellow lightning symbol).

Is there any work around for this problem? So far, the only possible solution is to manually extract the results from the current design point, reload the file without save, change current design point, rinse and repeat. But that is not viable for such large amount of design points.

 

Thanks in advance,

Leandro Fonseca

[Aniket]

Hi Leonardo, The workbench treats the analysis system as changed even if a post-level item is added to the project.

This is known behavior and is this way to avoid any changes that may cause any changes to the project. The workaround you found can be automated using python possibly and the task can be automated instead of manually doing it. Or other workaround can be solving all design points again (which can be time consuming)

-Aniket

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[mjmiddle]

You could right click on a design point to "Export Selected Design Points." It writes a new project only containing that design point. Then you can open it in a different workbench session if you have a second available license.

This amounts to a similar thing to your workaround but in a different order. At least it doesn't alter the current workbench project, so you don't have to worry about oversaving without the results.