With the continuous progress of social science and the continuous development of technology, people constantly put forward higher requirements for the energy saving of process equipment products, in order to achieve the purpose of reducing resource consumption. Therefore, all countries in the world focus on the energy saving of hydraulic excavators. In order to improve the energy saving of hydraulic excavator, it is necessary to carry out a comprehensive, systematic analysis and Research on the working device and its hydraulic system of hydraulic excavator, so as to improve the existing design level and improve the structural design level of hydraulic excavator.
The dynamic characteristic of hydraulic system refers to the process of the control system from the initial state to the final state after receiving the input signal. The main causes of dynamic process are external disturbance and process change of the system. In the dynamic response process of the system, with the change of time, the parameters of the system will change accordingly, and the quality of the dynamic characteristics of the system is reflected by the stability of the performance. To solve the dynamic characteristics of the hydraulic system, it is necessary to establish the dynamic model of the system through the state equation or a group of differential equations, take the time as an independent variable, and use the computer to solve the model.
