This model illustrates the operational principles of a hydraulic machine, which is used primarily for lifting freights and other applications that require a significant force (such as press operations). The concept of a hydraulic machine is based on the principle that pressure values are equal throughout the entirety of liquid in a given vessel, as long as the difference in elevation of the liquid throughout the vessel is insignificant. (Hydrostatic pressure difference between any two points in the liquid must be much less than the pressure values of these points in order to apply the hydraulic principle.) The same pressure is applied to both the large piston and the small piston in a hydraulic machine. While applying an insignificant force on the small piston, we are simultaneously applying a considerable force on the large piston. In this way, the hydraulic machine functions as a kind of a lever. |
Note that the large piston and the small piston produce the same amount of work, since a considerable relocation of the small piston results in a far less significant relocation of the large piston.
Cross-section areas of the pistons on both sides are (S1 and S2), and can be modified. The masses of loads (m1 and m2) can be modified as well.
Using this simulation, establish the piston area/force ratio for a hydraulic machine.