Methodology for experimental study of soil microrelief on ruts in bridge farming

The study of issues related to the study of the state of the soil on the surface of the most constant technological track is relevant, since the movement of the running wheels along narrow tracks determines the traction and coupling properties of machine-tractor units, their vibrations, the stability of movement and the controllability of movement. The рurpose of this study was to increase the efficiency of the process of profiling microroughnesses of the soil surface located in areas that form a track along which the running wheels of machine-tractor units will move, by substantiating a new scheme of an automated profilograph and developing methods for its use. For this study, modern methods of experimental research based on IT technologies were used. In particular, an automated complex has been developed for measuring and evaluating the microprofile of soil surface irregularities on the very track of the tramline. The results of the experimental studies in this matter showed that the standard deviation of the soil surface irregularities reaches ±0.84 cm. This gives reason to consider the harmonic components of these functions as damped, having normalized correlation functions. The graphs constructed using PC showed that most of the dispersions of soil surface irregularities on the ruts themselves are concentrated in the range of 0…0.3 sm-1. It was established that the generator of the formation of irregularities in the longitudinal profile of traces of a permanent technological track is the parameters of the treads of the wheels of the machines moving along it. The obtained results of the study can be used in the selection of protectors of pneumatic tires of the running wheels of machine-tractor units moving on two tracks