The form of the force characteristics of a hydraulic braking device is independent of the initial energy of the body being braked, which makes it possible to vary the striker energy not fearing deterioration of the braking device performance.
A braking device with a constant throttle cross section area is suboptimal in terms of loads experienced by its components.
A braking device with a rectangular brake characteristic (a constant-resistance brake) exhibits an essentially unstable form of the braking chracteristic. There is a danger not only in the wear and tear of the shaped element of the brake but also in leaks through constant cross section openings. In both situations there is a pressure overshoot at the end of the braking process, which is equivalent to a rigid collision of brake elements.
A brake with a linear relationship betwen the throttle cross section and the brake path exhibits the most stable brake characteristic of all the devices studied. The level of nonuniformity of this characteristic is well acceptable for practical purposes The form of the characteristic changes slightly as the shaped element of the brake is worn out. In addition, it is not too sensitive to a constant leak. Braking devices of this kind can be recommended for high-energy impact machines.