I am trying to formulate expression for the applied torque of motors for a multi link system. If i do not use any friction, then my analytical model considering lagrangian energy approach to formulate torque is exactly matching to torque calculate by solidworks. But with friction it is not matching. So, can anyone tell me what is the analytical model for friction is uded by solidworks to calculate the torque value.

Hi Ashish,

I think I may be having trouble understanding what you are asking. Would you be kind enough to provide a few pictures, the hand calculations you're using and perhaps a simplified SolidWorks model to show the concepts to us a little bit better?

If it helps, here is a link to the help file on friction in motion.

All the best,

Nick LuysterGosimulation.comOnline SolidWorks Simulation Training