In the mechanical system of excavator working device, the main force is acted on the working device by the hydraulic system through the oil cylinder. The main force of the working device refers to the hydraulic pressure in the hydraulic system. At the same time, the pressure and flow of the hydraulic system are related to the speed, displacement and other dynamic parameters of the mechanical system. Therefore, in order to carry out the dynamic simulation of hydraulic system and mechanical system, in the modeling process, it is necessary to integrate the mechanical system and hydraulic system, transfer and reference the above-mentioned relevant state parameters to each other, and generate the organic correlation between the two systems in the similar actual working device.
Aiming at the typical working conditions of excavator, such as fixed walking device, bucket cutting and loading, boom lifting after bucket filling, turntable turning to unloading position, turntable turning and restoring after unloading, the mechanical and hydraulic coupling simulation model of excavator working device is established by AMESim simulation software.
