Background: Hydraulic excavator as an important engineering
machinery, plays an extremely significant role in engineering construction.
Multi-way valve is the core element of hydraulic system of excavator, which
is used for controlling the flow of oil and the flow distribution of
actuators, its performance has important implications for the whole machine.
Objective: In order to guide the design and optimization of spools of main
valve of a medium hydraulic excavator quickly, a numerical simulation model
of hydraulic system of working device was built based on AMESim. But it is
impossible to simulate the ever-changing load accurately just with numerical
Methods: To make up the shortage, a real-time testing system for excavator
based on CompactRIO was built. Then the simulation model was embedded into
the testing system through interface modules to establish a semi-physical
simulation platform for hydraulic system. The platform was used to test and
simulate the hydraulic system of the excavator’s working device.
Results: It shows that the simulation results are in good agreement with the
measured data, which means the platform performs well.
Conclusion: The platform has great significance to accelerate the design and
development of main valves, and it also can provide strong support for
analysis and research of hydraulic system of excavator. It could be of great
significance both in designing multi-way valve and reducing the debugging
Keywords: AMESim, CompactRIO, excavator, hydraulic, LabVIEW, multi-way valve, semi-physical simulation
Rights & PermissionsPrintExport