Problems of Tribology = Проблеми трибології - 2023 рік

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https://elar.khmnu.edu.ua/handle/123456789/13602

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Перегляд Problems of Tribology = Проблеми трибології - 2023 рік за Ключові слова "garbage truck"

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  • Ескіз
    Документ
    Dependence of the wear rate on the microhardness of the coating of the auger hehydration in a garbage truck for municipal solid waste
    (Хмельницький національний університет, 2023) Bereziuk, O.V.; Savulyak, V.І.; Kharzhevskyi, V.О.; Vishtak, І.V.; Березюк, О.В.; Савуляк, В.І.; Харжевський, В.О.; Віштак, І.В.
    The article is dedicated to the study of the influence of the microhardness of the auger coating on its wear resistance during the dehydration of municipal solid waste in a garbage truck. The use of mathematical tools and appropriate regression analysis software allowed to determine the dependence between the auger wear rate and the microhardness of the coating. A graphical representation of the change in auger wear rate based on the microhardness of the coating was made up, confirming a significant convergence with the obtained dependence. The graphs illustrating the impact of the microhardness of the screw coating on its wear rate demonstrate the feasibility of increasing it. It was found that after operating and wearing out over a distance of s = 56850 m during the dehydrating of solid municipal waste in a garbage truck, increasing the microhardness of the coating from 2.7 GPa to 33.2 GPa leads to a decrease in energy consumption by 19 kWh/tons or 12% and reduces the cost of the dehydrating process. The feasibility of conducting additional research to determine further ways to increase the wear resistance of the auger was established.
  • Ескіз
    Документ
    Determination of the dependencies of the wear influence of the cylindrical brush on the operational characteristics of the garbage truck’s mounted sweeping equipment
    (Хмельницький національний університет, 2023) Bereziuk, O.V.; Savulyak, V.І.; Kharzhevskyi, V.О.; Harbuz, Ye.S.
    The article is dedicated to the establishment of dependencies of the influence of the wear of the cylindrical brush on the operational characteristics of the mounted sweeping equipment of the garbage truck. By using the planning of the second-order experiment with the first-order interaction effects, using the Box-Wilson method, the adequate dependencies of the influence of the wear of the cylindrical brush on the performance characteristics of the mounted sweeping equipment of the garbage truck were determined. It was established that, according to the Student's criterion, among the investigated factors of influence, the wear of the cylindrical brush has the greatest effect on the deformation of the cylindrical brush, and the width of the contact spot has the least influence. The required pressing force of the cylindrical brush is most affected by the width of the contact spot, and the least by the wear of the cylindrical brush. The response surfaces of the target functions are shown – the amount of deformation and the required pressing force of the cylindrical brush and their two-dimensional cross-sections in the planes of influence parameters, which make it possible to visually illustrate the specified dependences of target function data on individual influence parameters. It was established that the wear of the cylindrical brush of 50% of cases leads to an increase in the deformation of the cylindrical brush by 1.3 times, and the necessary force of pressing of the cylindrical brush – by 3.1...3.6 times, depending on the width of the contact spot. It is shown the expediency of conducting further researches of the effect of antifriction materials on the wear of the friction pairs of the mounted sweeping equipment of the garbage truck.
  • Ескіз
    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.