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Gnokrojam

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  1. Tommy, I appreciate the information. Thank you. Phil
  2. When importing a FEA input deck into Hypermesh the menu offers some options that are not explained. I have searched the Altair Documentation and the internet and cannot find any guidance. Perhaps some of you have figured it out. I could mess around a long time using trial and error to figure it out myself. What does "ID Rules" do? What are the rules? What does "FE Overwrite" do? It doesn't sound good. I imagine it depends on the situation. Thank you very much, good people. Phil Brown
  3. I have been using Inspire 2019.2. I checked and found that 2019.3.1 is available to me. I installed it and now I can select the features as your video shows. I can also now select features in my own geometry. I still have problems, but I think they are related to the bad geometry as you mention. In one instance I found a bushing that was at an angle to the hole it was in. It was off so much that there was an interference between the parts. Anyway, you have got me going again. Thank you again for your invaluable assistance. Best Regards, Phil
  4. I also just now tried reading the geometry straight from the TwoLinks.x_b file. It didn't change anything.
  5. Thank you for all the information. I exported the geometry you provided as a STEP file and read it into Inspire. I cannot select the surfaces in the holes. Or any surfaces for that matter. It's just point and click left mouse button, right? I've been doing other things with Inspire. If I use Autofind I can click on discovered joints and change their settings and activate them. I'm stumped. I don't know what setting would keep me from selecting surfaces. I appreciate your assistance. Phil Brown
  6. I think there is a way to create joints manually in Inspire Motion. I cannot find it though. Does anybody out there know how to create joints manually? Thank you.
  7. Some time ago I worked with a different FEA program and that company provided as part of the documentation a list of known errors. As bugs were fixed they were removed. As bugs were found they were added. It was a very useful tool to us users. We could quickly tell if a problem was something we were doing or a shortcoming of the software. Knowledge is power! Is a list of known bugs or known errors available for Optistruct? Thank you, Phil
  8. Aha! Never mind. You go into the Springs panel where you define spring elements and go into the update panel. There you can choose the orientation method and related information. Problem solved. Thank you for the help. Writing these helped me think it through. Phil
  9. There must be a way. I used a text editor and inserted a CID into field 9 and then read that input file into HM. When I edit that card the CID field shows up with the CID I entered. Phil
  10. The Optistruct manual says that when defining a CBUSH element with coincident GA and GB one must specify a CID. (Optistruct manual, CBUSH page, Comment 5) I do not see a way of specifying a CID in HM. Editing the element has the fields for X1, X2, X3, but the there is no field 9 for the CID. How can assigning a CID to a CBUSH be done? Thank you. Phil
  11. I found the problem. CBUSHs can also be defined in the SPRINGS panel. Those take two nodes. Problem solved. One of those things you apparently just have to know. Phil
  12. I have a spider of CBARs that I want to change into CBUSHs using Hypermesh. If I use the "config edit" panel it creates 1 noded CBUSHs, since CBUSHs are created under the "masses" panel. How can I make this change? Thank you. Phil Brown
  13. I found it! In the MotionView User's Guide, in the Tutorials, in the Contact Simulation tutorials. MV-1010: 3D Mesh to Mesh Contact Simulation It outlines the mesh requirements and has a link to best practices for contact modeling. The link takes you to: MotionSolve > User's Guide > Analysis Tips: Best Practices for Running 3D Contact Models in MotionSolve. Have fun with it colleagues! Phil
  14. I've looked in the manual for this without success. Just what is a properly meshed model? Must all geometry be meshed, or only that which comes into contact? Are shells allowed? Where does the manual tell us what the contact mesh needs to be? Thank you very much. Phil
  15. Your post about deleting settings files helped me to resolve my problem with the panel area sliding right and off of the screen. Thank you for the information.

    Unfortunately, yes, I lost all of my settings. That wasn't a surprise, but is there a way to backup settings so they can be read in again?

    For example, I use the favorite panel, Star, a lot. I lost my collection of favorite panels. Is there a way to keep these and restore them quickly in the future?

    Thank you very much.

    Phil Brown, John Deere Company, USA

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