The present invention relates to a backacting
shovel hydraulic
excavator performance integration characterization method. On the basis of fully considering the nondeterminacy of the excavation resistance
system, the usual effect interval of the excavation resistance coefficients and the resistance moment coefficients is obtained, a linear inequality formed by the interval and the complete
machine restrictive condition is solved, the work voltages of three groups of hydraulic cylinders are inputted into a
hexahedron space to map
force output convex polyhedron space of the
tail end of a
shovel, and based on the polyhedron, a set of integration performance evaluation indexes configured to evaluate the
excavator excavation performances and the proportion of each restricted condition is provided to measure the reasonability of the design of the
excavator operating mechanism and matching relation of the operating mechanism and the
hydraulic cylinder applied force. The backacting
shovel hydraulic excavator performance integration characterization method is suitable for the quantitative analysis and the
visualization representation of the excavator excavation performance of the excavation resistance
system variable characteristics, provides a theoretical basis for the complete
machine performance analysis of the backacting shovel hydraulic excavator, the reasonability evaluation of the design of the operating mechanism and the optimization design and improves the performances of the produced excavators.