simulating forcese acting on tillage tool and soil
 

hi guys

i have a problem with simulating vertical forces acting on tillage tool when connected to a bulck of soil

i sketched the tillage tool using unigraphics (UG) then imported the geometry to ansys

the probelm is that the result is reversible and looked unlogic, wish any one has some experience in this regard to help me doing this in a correct way, thanks to all