МЕТОДОЛОГІЯ ОЦІНЮВАННЯ ФУНКЦІОНАЛЬНОЇ ТОЧНОСТІ КОМБІНОВАНИХ СІЛЬСЬКОГОСПОДАРСЬКИХ АГРЕГАТІВ

Abstract

The study aims to substantiate the methodology for assessing the functional accuracy of combined agricultural units and their main elements during testing and operation. Methods. The methodological basis of the work is the generalization and analysis of known scientific results regarding combined agricultural units during power selection. Analytical methods and comparative analysis were used to formulate the scientific problem, determine the goal, and set research objectives. Results. When evaluating the functional accuracy of a combined agricultural unit, the process of the unit’s performance of specified functions aimed at achieving the set goal, characterized by certain values of its parameters (initial, primary, secondary), was considered. The condition for the effective operation of the traction-drive combined MTA with active working bodies of aggregated agricultural machines is formulated, which is achieved when the pushing force of the active working bodies and the sum of the rolling resistances of the tractor and the machine are equal. Conclusions. The methodology for assessing the functional accuracy of the combined agricultural unit involves comparing its parameters obtained during control, taking into account the non-identity of the control conditions, with the nominal values determined by regulatory and technical documentation. This analysis allows us to formulate the condition for the effective operation of the traction-drive MTA: the optimal traction and energy parameters of the MTA with active working bodies are achieved when the pushing force of the active working bodies and the sum of the rolling resistances of the tractor and the machine are equal. Keywords: combined agricultural unit, traction-drive MTA, unit elements, overall efficiency, functional, accuracy, workability, work efficiency.