Abstract
A comprehensive mathematical model of the hydraulic inlet and outlet throttle speed-regulating system was established that included most components’ dynamic characteristics such as the hydraulic cylinder, the throttle valve, the hydraulic pump, the relief valve. The simulink of matlab was used to emulate the equations. The system parameters for example throttle opening area, oil bulk modulus were analyzed how to influence the dynamic characteristics of throttle speed control system. How to correctly select circuit under working condition and how to improve equipment performance in the hydraulic system design are indicated through comparing the dynamic characteristics of inlet and outlet speed-regulating circuit.
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