On the effect of dynamic feed on frequency characteristic of hydrastatic transmission

The paper describes a hydrastatic transmission in the process of control and the existence of dynamic feed (feed appearing due to the time variation of control parameter) whose action is equivalent to the use of correcting signal proportional to the derivative of instruction signal. It is established that the feed oscillation obligatory for existing compenents of hydrostatic transmission leads to occuring of four parewise conjugated sets of additional signals. The relations between frequencies of additional signals are determined.