January 8, 2023 at 11:41 pmSneh PatelSubscriber
So I have a spiral design. Previously, I was getting a solver error which with the help of an Ansys employee, I was able to solve by changing the mesh sizing. Now, I have a different spiral design and I am getting this error(Picture 1). I would really appreciate your help with this error.
Picture 1: Shows the geometry with the error
Picture 2: Shows the geometry mesh and mesh size (element size =0.01)
January 9, 2023 at 7:39 amErik KostsonAnsys Employee
As it says, this means that this very small structure is deforming too much under that load.
The warning/error tells that it could be due to supports, a too large force (e.g., try and solve with ~ 1 microNewton instead) and or material properties.
All the best
January 11, 2023 at 4:30 pmSneh PatelSubscriber
I tried using a smaller force like 1micronewton and it worked. I was wondering can I use shell elements instead of a solid body since the thickness of my structure is 1 micrometer. and would it be possible to save the deformed shell element and perform further analysis in HFSS?
January 11, 2023 at 4:45 pmErik KostsonAnsys Employee
Shells are for thin structures - not sure how you can use that in hfss though (if they come out as shells).
One can also use solsh190 (solid-shells) which you can get as shown here.
January 11, 2023 at 5:50 pmSneh PatelSubscriber
I got the deformed geometry from static structural by exporting 1) as STP file format and 2) as pmdb format.
1)STP format: I imported STP format file in new geometry module and bridged it to HFSS in the workbench. However, the geometry gets distorted in both Design modular and HFSS. I have attached pictures below.
2)PMDB format: I imported PMDB format file in new geometry and bridged it to HFSS in the workbench. However, I get an error when opening the HFSS design geometry.
Erik, I would really appreciate it if you can help me get this deformed geometry in HFSS as I have tried multiple approaches. Can I send you my files?
Picture 1: Imported deformed geometry(0.1mm nodal displacement) in new Design Modular -PMDB format
Picture 2: Imported deformed geometry(0.1mm nodal displacement) in new Design Modular -STEP format
Similar distorted geometry in HFSS with STEP format.
Picture 3: Error when opening HFSS geometry with PMDB file format.
January 12, 2023 at 7:43 amErik KostsonAnsys Employee
What is the point of the static structural analysis (is it to get deformed geometry)?
If it too much deformed set the results scale to something smaller.
Then export to pmdb as that looks the best, and export it out from design modeler as a .sat file.
Try to import that to hfss (you can do that inside hfss via Modeler->Import->.
All the best
January 12, 2023 at 6:26 pmSneh PatelSubscriber
Yes, the point of static structural analysis is to get deformed geometry and use it in HFSS.
Okay, I will try to make the result scale smaller than what it is now. I will try this out and update you.
Thank you, Erik,
January 13, 2023 at 3:53 pm
January 13, 2023 at 3:57 pmErik KostsonAnsys Employee
You can do that from Spaceclaim instead (.sat export).
Then open HFSS, and go to the main menus, and Modeler - > Import and choose the sat file.
January 13, 2023 at 4:17 pm
January 13, 2023 at 4:21 pmErik KostsonAnsys Employee
You need to convert from stl to solid body - see this forum and the interent on how to do that. ALl the best
January 18, 2023 at 8:00 pmSneh PatelSubscriber
I tried looking at information on the internet to convert the stl to a solid body, however, had no luck. Can you give me to convert the STL to a solid body?
- You must be logged in to reply to this topic.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- Saving & sharing of Working project files in .wbpz format
- An Unknown error occurred during solution. Check the Solver Output…..
- Understanding Force Convergence Solution Output
- Solver Pivot Warning in Beam Element Model
- Colors and Mesh Display
- How to calculate the residual stress on a coating by Vickers indentation?
- whether have the difference between using contact and target bodies
- What is the difference between bonded contact region and fixed joint
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- User manual
© 2023 Copyright ANSYS, Inc. All rights reserved.