How to add force on Nodal boundary condition

Numerical methods and mathematical models of Elmer
Post Reply
shawn
Posts: 1
Joined: 15 Sep 2009, 06:41

How to add force on Nodal boundary condition

Post by shawn »

Hi,

I want add force on a single node. When I set as below it shows "Solution trivially zero!".

Boundary Condition 2
Target Nodes(1) = 31
Force 1 = 2000
End

I search the mailing list, and changed as below. It shows error when reading "displacement 1 load". So how can I add the force to the single node?

Boundary Condition 2
Target Nodes(1) = 31
Displacement 1 Load = 2000
end
raback
Site Admin
Posts: 4843
Joined: 22 Aug 2009, 11:57
Antispam: Yes
Location: Espoo, Finland
Contact:

Re: How to add force on Nodal boundary condition

Post by raback »

Hi Shawn

Your syntax has at least the problem that you should decleare the type of the condition i.e.

Code: Select all

Boundary Condition 2
  Target Nodes(1) = 31
  Displacement 1 Load = Real 2000.0
End
The reason for this is that even though 'Displacement 1' is a known keyword all the derived keywords are not defined in the SOLVER.KEYWORDS file. It would be impossible to list all combinations. You can still use unlisted keywords but you must define their type (Real, Integer, Logical,...).

BR, Peter
Post Reply