What type of beam is it (refers to whether it is simply supported, overhang, etc.), what type of supports, what specific conditions our beam under study has (eye is NOT referred to data), and if the equilibrium conditions in the beam are satisfied (referred to equations).

Diagram of Resulting Forces (DCL).

Shear force diagram, V(x).

That it is legible, with its minimum and maximum value Flecting moment diagram, M(x), That is readable, with its minimum and maximum value

How important are these values for us engineers?

A roll cutting line, where sheets are cut into strips or strips, consists of a shaft that supports the cutting blades on it, rubber rollers ensure that the sheets do not wrinkle. In these cutting lines, the shafts supporting the cutting blades are highly stressed and are important components. For this purpose, a diagram of the acting forces of one of these axes is presented in the figure for a short cutting line, where a single sheet is placed in the center of the axis, the motor drives the shaft through a pulley on the far right.

500 lbf 180 lbf 540 lbf Cojinete Cojinete A B r =6 ple 10 plg 10 plg 5 plg Polea O