MATHEMATICAL MODELS SHOWING RELATION BETWEEN THE VIBRATION OF A DYNAMIC SOIL-TILLING TOOL AND ITS TRAVELLING SPEED
To determine the vibration parameters of dynamic soil-tilling tools depending on their travelling speed as a part of a soil-tilling unit in the experiment is a complex and time-consuming process. The amplitude, period, frequency, quantity and wavelength of traction resistance were considered as vibration parameters of a dynamic tillage tool. Mathematical modeling allows, with the least effort, to establish a relation between the variations of traction resistance parameters of the tillage tools and their travelling speed. The study aim was to create the relevant mathematical models. The study target was the practice of ploughless surface soil tillage. The study focus was the regularities in variation of traction resistance parameters of soil-tilling tools. In the study the mathematical modeling methods, based on the study of physical regularities occurring during the tillage process, were applied. The experiments on energy assessment of the tillage tools with the experimental data analysis and synthesis were conducted. The scientific novelty of the work was the created mathematic models, which allow establishing the relationship between the variations of the traction resistance of the tillage tools and their travelling speed. They also provide a fact-based analysis and forecast of their planned performance.