Surface Force (SFE) and Force(F) in ANSY APDL

- June 29, 2020 at 9:39 am
  
  DESOJIB
  Subscriber
  
  Hi,
  
  I am apply load on a surface using APDL script. i want to know if i apply the same Force value using different Command SFE and F then does it makes any difference in my result?
  
  Greetings,
  
  Bhavin
- June 30, 2020 at 10:36 am
  
  Aniket
  Ansys Employee
  
  I hope you have checked the help already:
  
  https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v195/ans_cmd/Hlp_C_SFE.html
  
  https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v195/ans_cmd/Hlp_C_F.html
  
  SFE is applied on surface elements, while the F is applied on nodes. I would recommend using it on a simple taste cube and test to see the difference!
  
  -Aniket
  
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- June 30, 2020 at 10:50 am
  
  DESOJIB
  Subscriber
  
  Hi Aniket,
  
  Thanks for your reply. I checked Ansys Help and i came to know exactly what u mentioned that SFE applies on Element and F applies on nodes.
  
  i Have one more question i am doings Harmonics response solution and i have Force as a table in real and complex component as different frequency. can you please mention how can i do it using SFE command.?
  
  i created SURF156 elements on the surface where i want to apply the load but using SFE command i am geeting error. Please find Force table in Attachment
  
  Thank you
- July 1, 2020 at 3:35 pm
  
  Aniket
  Ansys Employee
  
  Ok and what is the error that you are getting here?
- July 2, 2020 at 7:29 am
  
  DESOJIB
  Subscriber
  
  Hi Aniket,
  
  Error i am getting is : there are no degrees of freedom active error ansys

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