Hello and have a nice week!!

Due to a postgraduate programm in which I am attending to I have a coursework over a simulation study.I decided to make a static analysis of a dumper truck frame.Since I am novice on simulation I came up to many problems during the procedure.After designing the frame(I am also not an expert in design) I want to make a static analysis of the frame due to the weight of the truck cabin and its trailer(I am allowed not to use no more components on  the structure such as gear box,engine etc).After designing the cabin and the trailer and having a look to the mass properties of each one of the components the overall force of the components which are applied on the frame when it's still is 226983 N.The software meshed and ran the analysis and the results regarding the stress and strain(hopefully)pass the criteria,but I wonder about the displacement of the frame which came up with a result of approximately 11mm..I am also wondering about the implementation of the force to the frame,meaning that the Truck Cabin weights approximately 15000Kg and i would like to implement the specific force(147.150 N) at the right position(non uniform) on the frame in which the cabin will be placed on and so on.

I would really  need your advices/opinions about anything that could be helpful

Thank you in advance for any help!

Apostolos