How to formulate boundary conditions in an input file

[optimus2007]

I want to put a force in x-direction with 10N.
And there is just a reference point given.
How can I write it in the inp-file?
What about the measurement?
there are dload,cload and dsload.But I do not know which of them to use.

 

[barney75]

Hi optimus,
from the brief description u gave, i think u should use *cload command in this way.
Let 999 be the number of the reference point u mentioned:

*cload
999, 1, 10

if your model has been implented with consistent units (N, m, etc) u are applying a force along the global axis 1 (i.e. x) equal to 10N. To measure the force u are applying u can either look at reaction force along x axis at the reference point or multiply the step time increment by 10N.

I hope this can help

bye