| Summary: | The article deals with some questions about
the influence of drive parameters on the characteristics
of hydraulic shock devices, noted during the analysis of
the results of mathematical modeling. Using mathematical modeling, numerical experiments were performed
and diagrams of the characteristics of a hydraulic shock
system were obtained that characterize the dynamics of
its operation with various types of drive engines, such as
an electric motor, an internal combustion engine, and
an "ideal" engine. The parameters of the hydraulic
shock device and the setting of the pressure- relive valve
remained unchanged. As a result of numerical experiments obtain graphs of displacement and velocity of the
piston, displacement of the control valve, pressure in the
chambers of working and return stroke, the position of
the piston of the accumulator, the pump flow rate in
time. A comparison is given of the types of hydraulic
shock devices that are currently most widely used in
road construction vehicles (equivalent in power to an
electric engine and an internal combustion diesel engine). Special attention is paid to the relationship between the parameters of the hydraulic shock device and its drive. The conclusions are made based on the dependencies obtained as a result of computational experiments. The studies show that there are significant influence parameters of the drive on the characteristics of
hydraulic impact devices (hammers, breaker), and, accordingly, the need to consider drive parameters by designing and operating it.
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