What is producing this mesh connection error?

- February 10, 2021 at 7:07 pm
  
  Bendeavour
  Subscriber
  
  Hello,
  I'm currently trying to perform structural analysis on the pictured aircraft wing model consisting of rib webs, spar webs, and a skin meshed with shell elements, and rib caps, spar caps, and stringers, meshed with beam elements.
- February 11, 2021 at 11:23 am
  
  Aniket
  Ansys Employee
  
  I think that error is because it is not able to merge line body and surface body nodes. Try Mesh connections only between the surface bodies and connect line bodies to resulting connected surface bodies using contacts. Makes sure you use similar mesh size on line bodies and surface bodies.nAnd yes, the failed mesh is a problem so is the red lightning bolt in the tree in front of the Mesh connections.n-AniketnHow to access Ansys help linksnGuidelines for Posting on Ansys Learning Forumn
- February 11, 2021 at 10:06 pm
  
  Bendeavour
  Subscriber
  
  Thank you for your assistance. Removing the beams from the mesh connection group seems to have rectified the failed mesh error. nMay I check with yourself that I should be using contacts located in connections in the outline tree to connect the surface bodies to the beams? I inserted a connection group, set Face/Edge in auto detection in the details window to yes, and then created automatic connections, but I was unable to successfully produce a solution, resulting in the error messages I have attached. nn
- February 12, 2021 at 10:06 am
  
  Aniket
  Ansys Employee
  
  Ok before starting a static analysis do a Modal analysis first and see if there are any rigid body modes. It may be possible that you will need to reverse some contact faces.n-AniketnHow to access Ansys help linksnGuidelines for Posting on Ansys Learning Forumn
- February 15, 2021 at 6:25 pm
  
  Bendeavour
  Subscriber
  
  I was still having issues so I started again, this time assigning the contacts to named selections and auto-generating them this way instead of using all bodies and I was able to successfully run the analysis.nThank you very much for your help, you've been a life-saver!n
- February 18, 2021 at 12:17 pm
  
  Aniket
  Ansys Employee
  
  Happy to help!n-AniketnHow to access Ansys help linksnGuidelines for Posting on Ansys Learning Forumn

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