Access vertices of linear bodies

[MagnusAAberg]

Hi

I am creating a number of line bodies that will later be used for a simplified bolt analysis in Mechanical.

I was wondering if there is a way to access the end and start point vertices, with the main goal to add a named selection for them.
I looked in the documentation but did not find it.

[RobPasMue]

Hi @MagnusAAberg - when you talk about line bodies, could you provide a sample code-snippet of the operations you are performing? Are they actual Body objects from PyAnsys Geometry?

Edges have access to vertices, and starting on 26R1 you will be able to create Named Selections including vertices, but with the current available installations it is not possible. Named Selections are only supported for components, bodies, faces, edges and design points currently.

[RobPasMue]

No problem at all! Enjoy the weekend and keep us posted! =)

[MagnusAAberg]

Hi @RobPasMue , I tried your fix and it does work :)

however now I seem to have a new problem

c_bolts = design.add_component("bolts")
start_point = Point3D([0, 0, 0], UNITS.m)
end_point = Point3D([0, 0, 1], UNITS.m)

b= c_bolts.create_beam(
            start=start_point,
            end=end_point,
            profile=prof
)

this works

design.create_named_selection(
    "bolts111", 
    bodies =None,
    faces = None,
    edges = None,
    beams=[b]
    )
    

but this gives

GeometryExitedError: Geometry service connection terminated: One or more objects are not valid in this context. Ensure that proper occurrences are being used
Parameter name: members

[MagnusAAberg]

Hi @RobPasMue , i think i might have another problem too.

If i generate the circular_beam_profile and attach it to beams in my design, I can not import it into mechanical because:

Failed to import assembly from Discovery. Could not get the internal beam assignment.

should the circular beam "m16" not appear under the physics tree in Discovery like it does with the "C10X20 " beam?

*I created the "C10X20" by hand in Discovery

[RobPasMue]

Hi @MagnusAAberg! Thanks for testing and verifying it works at least for beam creation. We now have to issues:

• Beam inclusion in named selections seems to not be working properly.
• Export to Mechanical not including beam

Regarding the first point I might need to set up a test to verify things and keep you posted. Regarding the second point, are you using PMDB as the export format to be consumed in Mechanical?

[MagnusAAberg]

Hi, I am using the .dsco format by sending and executing a Discovery script file to Discovery from pyansys mechanical.