Open AccessRegularities of deformation of the bending of elastic elements and the parameters of vibrations of a dynamic tillage operating part
Author(s) -
Нозим Исмоилович Джабборов,
A. Sergeev,
А. И. Захаров,
A.N. Perekopskiy
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1001/1/012048
Subject(s) - deflection (physics) , vibration , tillage , structural engineering , bending moment , deformation (meteorology) , amplitude , engineering , mechanics , geology , physics , acoustics , classical mechanics , optics , ecology , biology , oceanography
Revealing the regularities of bending deformation of elastic elements and vibration parameters of dynamic tillage operating parts is an urgent task, as it ensures the development of new innovative energy-efficient operating parts The aim of the study is to identify the patterns of deformation of elastic elements and oscillations of the wing of a dynamic tillage part of the operating part. The object of research is a dynamic arrow-shaped tillage operating part with a working width of 330 mm for surface tillage to a depth of 14 cm. The subject of research is the regularities of the bending deformation of elastic elements and the vibration parameters of dynamic tillage operating parts. The research was carried out using methods of mathematical modeling based on the study of physical laws that occur during soil cultivation; experimental studies on energy assessment of tillage operating part, analysis and generalization of experimental data. The scientific novelty of the work is represented by empirical dependencies for determining the value of the deflection of an elastic element, displacement of the extreme point of the wing and the amplitude of oscillations of the extreme point of the wing of a dynamic tillage operating part. The graphical and empirical dependences of the deflection value of the elastic element, the movement of the extreme point of the wing and the amplitude of its oscillations from the bending moment, the speed of movement and the load of the dynamic tillage operating part are given. It was found that within the range of bending moment variation from 36.2 to 95.35 N⋅m, the deflection of the elastic element ranges from 5.5 to 15.8 mm. At the same time, within the limits of the change in the speed of movement of the dynamic tillage worker from 1.94 to 3.61 m/s, the average value of the movement of the wing extreme point increases from 11.55 mm to 14.75 mm. The relationship of the parameters considered above on the bending moment, load and speed of movement of a dynamic tillage operating part is described by empirical dependencies with the coefficient of determination R 2 = 0.67 – 0.85. The error of the sample mean Sy of the investigated parameters of the dynamic operating part varied within 0.039 – 0.136.