Brett Ball

FORCE / TORQUE CALCULATIONS Hi, Not done this sort of things since college days. Some input would be much appreciated. Please refer to the attached .pdf. The diagram is a schematic drawing only. In order to determine the weld size, I need to calculate the force (N) at the diameter of the welds (888mm). The inner flange is driven by a 250 kW motor which has a rotational speed of 42 rpm. Given that motor power Kw=(T*rpm )/9552.4 where T=Torque (N m).  T=(kW*9552.4)/rpm  T=(250*9552.4)/42  T=56859.5 N m I calculate that the force at the weld diameter to be:- force at weld=56859.5*((888/2)/1000)  force at weld=128062 N I deduce that the welds will be in shear. Flange weld shear calc.pdf