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
