For our analysis, we use the built-in hydraulic motor and pump models in the Wolfram Hydraulic library
. The pump model is set to have a fixed displacement and to operate at a constant speed. The displacement of the motor is varied and its speed is measured.
The hydraulic motor used in a simple hydraulic system to illustrate the effect of displacement size on the rotational speed.
Steady-state and transient behavior of the pump-motor system.
Motor speed as a function of time and displacement. At 5 seconds, all simulations have reached a steady state and the different speeds are extracted to generate the plot to the right.
Steady-state motor speed as a function of displacement. As can be seen, the speed is inversely proportional to the displacement.
Varying the displacement of the motor also affects the initial dynamics of the system.