Abstract: The soil dynamic test is fundamental for the study on the interaction characteristic between machines and soil. In order to study the fracture and agglomerate movement of soil under external mechanical action, a mini-soil bin test device is developed. The reciprocating linear action of cutting tools fixed on the nut of ball screw is realized by controlling the electromotor positive inversion with the pulse sent from the programmable logic controller (PLC) to the driver of electromotor which connects with the electromotor. Based on the resistance strain gage method and pressure transducer principle, two sets of completely independent schemes, i.e. weighing transducer and artificial bridge SMD, are adopted to dynamically collect in real time the data of horizontal forward and side soil resistance. The soil cutting tools and original soil bed form can be changed according to experiment demands. In order to verify the accuracy and stability of the mini-soil bin device and compare the data results of the two schemes, soil dynamic cutting tests are carried out by taking bulldozer blade, triquetrous wedge and moldboard plow models as three different cutting tools. The test results show that the two sets of data are in good agreement.

Key words: Bulldozer, Develop, Experimental device, Mini-soil bin, Moldboard plow, Soil dynamics, Triquetrous wedge, flexible job-shop scheduling discrete bat algorithm clock algorithm the priority assignment rules optimization algorithm