Python

Get nodal stresses while incorporating power/full graphics
Hello, I'm currently attempting to retrieve nodal stresses from a model utilizing PyMAPDL. My approach involves employing both mapdl.result.nodal_stress and mapdl.post_processing.nodal_component_stress commands. While these commands successfully fetch stress values at the nodes, I aim to integrate the options 'power…
How to export all reaction forces and moments in a file ?
Hi, Here is my problem : I would like to : (i) create in Mechanical all the reaction forces and moments ; (ii) export all these data in a file (.csv for example). For the first point, I have writen a Python script, and I get a folder containing subfoler with reaction forces and moments for my boundary conditions, joints,…
mapping.on_coordinates operator on tetrahedrons mesh
Hello, I have a question regarding the "mapping.on_coordinates" operator. To test my code I use a simple ANSYS model consisting of a beam, meshed with volume elements, fixed on one side and loaded with a lateral force on the other side. My aim is to determine the stresses along the outside-surface node normals. I have the…
How to get plate thickness based on element id?
Hi everyone, I have a plate model with several plates of different thicknesses. In postprocessing I'd like to know the thickness of an element based on its id. Does anybody know how to calculate/retrieve it? from ansys.dpf import postsimulation = post.load_simulation('file.rst')elemental_stress =…
How do I convert LS-Dyna results to USD format?
How do I convert LS-Dyna results to USD format?
ERP calculation using dpf-core
Hi, I am trying to calculate the Equivalent Radiated Power of a given surface, based on a named selection. I have performed a harmonic analysis using MSUP, and have created a named selection called "LARGE". The code has a number of blocks: 1) Time Here the time scoping is obtained 2) NS Here a mesh scoping is obtained from…
Getting "MapdlConnectionError" often when runnung PyMAPDL
Hi Team, We have developed a PyMAPDL script. When we run the script we get frequently the following error: " Error using mapdl_grpc>_multi_connect Python Error: MapdlConnectionError: Unable to connect to MAPDL gRPC instance at 127.0.0.1:50053. Reached either maximum amount of connection attempts (5) or timeout (45 s).The…
Is there a way to set up a virtual Environment for VSCode ?
Hello Developers, I just started working with ACT Scripting in Mechanical. I have been doing all my programming projects with Microsoft VSCode for years now, thus I am searching for a workflow that would allow me to use the full potential of VSCode like Syntax Checking and Intellisense. Since VSCode does not know anything…
problem while importing forces from Ansys Maxwell to harmonic response.
First, I had a problem while importing forces from Ansys Maxwell to harmonic response. Then, I read an article on customer support portal which instructed me to download a python script an then run it, which will generate an excel sheet containing all the moments and…
How to run a function up on activating (Clicking on ) a python result file. for instance OnActivate
I have written a code that updates the tabular data of a python result. The tabular data are populated from the information in the properties section of the python result file so I need it to execute after the properties are loaded. At the moment I have a property that on_property_change, performs the task. Is there a way…
How to get stresses from cut mesh
Hi All, I would like to cut up the mesh of a large ANSYS model into more manageable parts. To do that, I’m using the “mesh_plan_clip” mesh operator to cut the main-mesh at the location of a plane. To test my code, I use a simple beam model that is fixed on one side and is loaded with a lateral force on the other side. In…
Scripting surfaces in SpaceClaim 2023 R2 getting slow
Hello, I wrote a script for creating a geometry of beams and surfaces in space claim 2021 R1. Now I'm testing it in 2023 R2 and I am getting several problems: -The script is 10x slower and it seems that the surfaces are the problem. -sometimes lines are not solidified and are not converted into beams, it seems to happen…
ANSYS workbench and python integration
I currently have a few scripts which automate the generation of a performance plot in CFX. These scripts automate the creation of design point parameters inside of workbench. Currently, I initialize the automation scripts via the GUI or windows command line. I was wondering how I could interact with workbench from an…
How to select active object ?
Hi, I have a script for the creation of an APDL command on object : joint_33 = DataModel.GetObjectById(33) command_snippet_37 = joint_33.AddCommandSnippet() command_snippet_37.Input = r"""toto""" I would like my script to be more robust and change the first command line. Is there a way to select the object not by the ID…
In Mechanical how to rename analysis based on names in Workbench ?
Hi, In Workbench, I renamed my analysis. In Mechanical, I have to rename all the analysis. Is there a way with a Python script (or other) to automaticly rename analysis in Mechanical, based on names in Workbench ? Thanks, Jean
How to create a named selection of nodes which have equivalent stress above a certain limit?
I have an equivalent stress result in Mechanical. I want to create a nodal named selection which has nodes corresponding to equivalent stress above a certain value
Discovery Pull Helix revolve creates wrong height
Hi all, I have taken scripting of the Pull with helix revolve tool and want to parameterise. For some reason, the "height" of Pull is not being respected, e.g. creating a height of 34mm instead of the requested 31.9mm. This seems random, as for other dimensions the too works properly. Dscript file also attached. Can you…
How to export results (SMISC - axial forces and moments) for all the beam connections in Mechanical?
I have lots of beam connections in the model. I want to export the data in the below format into a csv. beam element type id, Beam name in Mechanical, Fx, My_i, My_j, Mz_i , Mz_j
PyMAPDL exits intermittently when run in a loop
Hi, I'm currently running a PyMAPDL script in a for loop. During each iteration, the script makes slight modifications to the mesh and performs a pre-stressed modal analysis. However, I'm encountering an intermittent issue where PyMAPDL exits with the following error message after few iterations: CRITICAL - pymapdl_global…
Contour Plots on Changed Mesh (NLAD) using Python Result object (DPF) in Mechanical
How could I generate contour plots of custom results on a changed mesh (NLAD) during the solution in Mechanical?
Tabular load implemented from Python scripting
Hello everyone I am working in Ansys Workbench 2022R2 in a coupled field module. I am adding loads from scripting. With a single value works easily, but I want to use tabular data for the load. Can i read tabular data for a load from scripting? Can i set the step end time in analysis settings with input from csv?
PyMAPDL exits intermittently while running in a loop when mapdl.input() command is used
Hello, I'm encountering an issue while running a PyMAPDL script in a for-loop for a large number of iterations (approximately 8000). In each iteration, I modify the node locations using an input file and then solve the problem. To change the node locations, I utilize the "mapdl.input(update_nodes.inp)" command, which…
PyMAPDL exits intermittently while running in a loop when mapdl.input() command is used
Hello, I'm encountering an issue while running a PyMAPDL script in a for-loop for a large number of iterations (approximately 8000). In each iteration, I modify the node locations using an input file and then solve the problem. To change the node locations, I utilize the "mapdl.input(update_nodes.inp)" command, which…
Modify multiple node positions in PyMAPDL
Hi, I need to modify multiple node positions for a particular model. For this currently, I'm using the command mapdl.n() (also tried mapdl.ngen()) in a loop. This works fine but takes a longer time appx. 70 seconds (since the number of nodes to be modified is large). Whereas when I perform the same task through…
Rename reaction forces base on definition
Hello everyone, I encounter a problem while creating a script to extract the Force reactions Fx, Fy and Fz at all boundary conditions. The thing I want to do is to extract them and then rename them base on their definitions to be able to quickly see which reaction forces correspond to which boundary conditions. Therefore,…
Modify multiple node positions in PyMAPDL
Hi, I need to modify multiple node positions for a particular model. For this currently, I'm using the command mapdl.n() (also tried mapdl.ngen()) in a loop. This works fine but takes a longer time appx. 70 seconds (since the number of nodes to be modified is large). Whereas when I perform the same task through…

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