Перегляд за Автор "Yavorskyi, V.Ye."
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Документ Analytical study of a hydraulic drive model for a municipal waste container overturning mechanism in a garbage truck considering the wear of friction pairs(Хмельницький національний університет, 2025) Bereziuk, O.V.; Savulyak, V.I.; Kharzhevskyi, V.O.; Ivanov, S.Cv.; Yavorskyi, V.Ye.The article is dedicated to the analytical study of the improved mathematical model of the hydraulic drive of the mechanism for overturning a container with municipal solid waste into a garbage truck, taking into account the wear of friction pairs. As a result of the analysis of the performed numerical studies of the nonlinear improved mathematical model of the hydraulic drive of the mechanism for overturning a container with municipal solid waste into a garbage truck, taking into account the wear of friction pairs, a linearized version of this model was developed in the form of a system of ordinary linear differential equations of the 2nd order. To carry out design calculations of new garbage truck designs, approximate analytical dependencies were obtained for the pressure in the hydraulic cylinder pressure line, the angular velocity and the angle of container overturning on time were obtained based on the proposed linearized mathematical model of the hydraulic drive of the container overturning mechanism in the technological operation of loading municipal solid waste into the garbage truck during the 1st phase – overturning the container to the equilibrium position, taking into account the wear of friction pairs. A regression equation was obtained, which allows to approximately determine the duration of the 1st phase – the rotation of the container to the equilibrium position during its overturning in the technological operation of loading municipal solid waste into a garbage truck, taking into account the wear of friction pairs, which can be used during design calculations of new garbage truck designs taking into account the wear of working bodies without the need to study the nonlinear mathematical model of the drive, as well as during optimization of the main parameters of the hydraulic drive. It was established that the analytical study of the linearized improved mathematical model of the hydraulic drive of the mechanism for loading municipal solid waste into a garbage truck, taking into account the wear of friction pairs during the 2nd phase – pouring waste from the container into the body of the garbage truck requires further research.Документ Dependence of wear of friction pairs of the mechanism for loading solid household waste into a garbage truck on the characteristics of antifriction materials(Хмельницький національний університет, 2024) Bereziuk, O.V.; Savulyak, V.I.; Kharzhevskyi, V.O.; Serdiuk, O.V.; Yavorskyi, V.Ye.The article is dedicated to the establishment a regression dependence of wear of friction units of the mechanism of loading a garbage truck on the properties of antifriction materials. By using a first-order planning of experiment with first-order interaction effects using the Box-Wilson method, an appropriate regularity of wear of friction units of the garbage truck loading mechanism on the properties of antifriction materials has been determined. It is established that, according to the Student's criterion, among the studied factors of influence, the wear of friction units of the garbage truck loading mechanism is most influenced by the pressure in the friction zone, and the least – by the Brinell hardness of the antifriction material. The response surfaces of the objective function – wear of friction units of the garbage truck loading mechanism and their two-dimensional cross-sections in the planes of the influence parameters are shown, which allow to clearly illustrate the specified dependence of this objective function on individual influence parameters. It has been established that an increase in the pressure in the friction zone and sliding speed by 60% leads to an increase in the wear of friction units of the garbage truck loading mechanism during reverse motion by 6.3...34%, depending on the properties of antifriction materials. The expediency of conducting further research to determine ways to further improve the wear resistance of friction units of the mechanism for loading solid household waste into a garbage truck has been shown.Документ Improved algorithm for engineering calculations of the parameters of a container tipping mechanism in a garbage truck taking into account the wear of friction pairs(Хмельницький національний університет, 2026) Bereziuk, O.V.; Savulyak, V.I.; Kharzhevskyi, V.O.; Ivanov, S.Cv.; Yavorskyi, V.Ye.The article is dedicated to the development of the scientifically grounded improved method, based on the analysis of scientific literature sources, for the design calculation of the parameters of a mechanism for tipping a container with municipal solid waste into a garbage truck, taking into account friction wear, in order to determine its main geometric, force, and speed parameters. The drive of the working parts of the mechanism for tipping a container with municipal solid waste into a garbage truck is hydraulic, with a power source from the garbage truck’s pump station. The usage of the proposed improved methodology for the engineering calculation of the parameters of the mechanism for tipping a container with municipal solid waste into a garbage truck, taking into account the wear of friction pairs, allows significant reduction in design time and avoids unnecessary costs for labor-intensive experimental and theoretical research. Using the proposed scientifically based improved method of design calculation of the parameters of the mechanism for tipping a container with municipal solid waste into a garbage truck, taking into account the wear of friction pairs, its main geometric, force, and speed parameters have been determined. It has been established that the development of an improved methodology for the design calculation of the parameters of the mechanism for rotating the manipulator lever during the loading of municipal solid waste into a garbage truck, taking into account the wear of friction pairs, requires further research.Документ The influence of hinges wear on the dynamic load of the articulated boom of a garbage truck’s manipulator(Хмельницький національний університет, 2023) Bereziuk, O.V.; Savulyak, V.І.; Kharzhevskyi, V.О.; Yavorskyi, V.Ye.The article is dedicated to establishing the relationship between the maximum impact dynamic stresses in the most loaded section of the garbage truck manipulator boom and the wear of the manipulator's hinge and its load level. By utilizing a first-order experimental design with first-order interaction effects using the Box-Wilson method, an adequate dependence of maximum impact dynamic stresses in the most loaded section of the manipulator boom on the wear of the manipulator’s hinge and its load level was determined. It has been found that, according to the Student’s criterion, among the investigated influencing factors, hinge wear has the most significant impact on the maximum impact dynamic stresses in the most loaded section of the manipulator boom, while its load level has the least impact. The response surface of the objective function is shown – the maximum impact dynamic stresses in the most loaded section of the manipulator boom and their two-dimensional sections in the planes of the impact parameters, which allows to visually illustrate the specified dependence of this objective function on individual impact parameters. It was established that the wear of the hinge by 1000 μm leads to an increase in the maximum impact dynamic stresses in the most loaded cross-section of the boom of the garbage truck manipulator by 2.6...4 times, depending on the level of its load. The expediency of conducting further studies of the effect of antifriction materials on the wear of the friction pairs of the mechanism for loading municipal solid waste into the garbage truck is shown.