Comparative evaluation of dump trucks with rigid and articulated frame in conditions of road construction production

The article presents the analysis results of the design of dump trucks used in road construction field. The authors point out the tendency of expanding the use of dump trucks with articulated frames in the world practice. The necessity of evaluating the possibilities of domestic manufacturers to produce the machines of this type is justified. Comparative evaluation of samples was carried out by comparing generalized indicators of the vehicle quality determined by their technical level coefficients, as well as by directly comparing a number of specific indicators of their performance properties. Information search, statistical processing of information materials, expert research and mathematical modeling were used as scientific methods for obtaining the initial data for evaluation. The comparative qualimetric assessment of the operational capabilities of dump trucks of various designs gives grounds to recognize that the use of a machine with an articulated frame for direct filling of the road embankment will be preferable to machines of frame construction. This is due to the fact that the articulated dump truck has a higher cross-country ability and maneuverability, while having a certain reserve for increasing the load capacity and the similar cargo capacity of the body with the frame truck. The evaluation results confirm the feasibility of producing a domestic dump truck with an articulated frame.