Task id16445

Using a hydraulic press having a piston area ratio of s/S = 1/50 and efficiency. h = 75%, it is required to compress a load of mass m = 80 t within t = 0.5 min so that the maximum pressure force of the load on the upper platform of the press reaches F = 1 MN. In this case, the load is compressed by dh = 30 cm. Find the work done by the engine, assuming that the vertical deformation of the load is proportional to the compressive force. Find the average and maximum engine power, as well as the number of strokes of the small piston, if in one stroke the small piston drops to a distance of H = 10 cm.