Обґрунтування впровадження системи підресорювання кабіни колісного трактора
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Дата
2022
DOI
doi.org/10.20998/2078-6840.2022.1.09
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Національний технічний університет "Харківський політехнічний інститут"
Анотація
Проаналізовано вплив впровадження системи підресорювання кабіни колісного трактора на показники плавності ходу колісного трактора при русі по різноманітним дорожнім покриттям. Як результат отримано залежності зміни вертикальних прискорень на сидінні оператора-водія трактора ХТЗ-160У від швидкості руху (частоти зовнішнього впливу) по різноманітним покриттям. Практична значимість роботи полягає у наданні результатів оцінки впливу коливань на організм оператора-водія при експлуатації вітчизняного трактора шляхом впровадження системи підресорювання кабіни.
Today, there is a significant mechanization of agriculture, which is designed to facilitate the work of the driveroperator and prevent the driver-operators from getting health problems during the performance of agricultural work. Therefore, such processes become a priority, because the increase in the energy content of tractors, the increase in speed during the execution of technological and transport operations, the variety of machines and tools aggregated by the tractor – inevitably lead to an increase in the impact of vibrations on the body of the operator-driver. In order to create real competition, domestic manufacturers need to implement modern solutions, which is not possible without high-quality cooperation with scientists. Therefore, the material of this article aims to analyze the implementation of the suspension system of the cab of a wheeled tractor on the indicators of smoothness of the wheeled tractor (vertical accelerations on the seat) when moving on various road surfaces. When solving the set goal, a technique was used that involved the use of the Dalembert principle, i.e., in the calculation model of the system from the massive elements, all available bonds were conditionally broken, then the action of the discarded bonds was compensated by the reactions of the bonds. As a result, the dependence of the change in vertical accelerations on the seat of the driver-operator of the KhTZ-160U tractor on the speed of movement (frequency of external influence) when moving on surfaces was obtained. The practical significance of the work lies in the provision of positive evaluation results regarding the reduction of the impact of vibrations on the body of the operator-driver for the domestic tractor industry through the introduction of the cabin suspension system.
Today, there is a significant mechanization of agriculture, which is designed to facilitate the work of the driveroperator and prevent the driver-operators from getting health problems during the performance of agricultural work. Therefore, such processes become a priority, because the increase in the energy content of tractors, the increase in speed during the execution of technological and transport operations, the variety of machines and tools aggregated by the tractor – inevitably lead to an increase in the impact of vibrations on the body of the operator-driver. In order to create real competition, domestic manufacturers need to implement modern solutions, which is not possible without high-quality cooperation with scientists. Therefore, the material of this article aims to analyze the implementation of the suspension system of the cab of a wheeled tractor on the indicators of smoothness of the wheeled tractor (vertical accelerations on the seat) when moving on various road surfaces. When solving the set goal, a technique was used that involved the use of the Dalembert principle, i.e., in the calculation model of the system from the massive elements, all available bonds were conditionally broken, then the action of the discarded bonds was compensated by the reactions of the bonds. As a result, the dependence of the change in vertical accelerations on the seat of the driver-operator of the KhTZ-160U tractor on the speed of movement (frequency of external influence) when moving on surfaces was obtained. The practical significance of the work lies in the provision of positive evaluation results regarding the reduction of the impact of vibrations on the body of the operator-driver for the domestic tractor industry through the introduction of the cabin suspension system.
Опис
Ключові слова
колісний трактор, система підресорювання, коливання, кабіна, математична модель, пневматична опора, деформація, wheeled tractor, suspension system, oscillations, cab, mathematical model, pneumatic support, deformation
Бібліографічний опис
Обґрунтування впровадження системи підресорювання кабіни колісного трактора / А. П. Кожушко, Б. І. Кальченко, О. Г. Янчик, Г. О. Кобець // Вісник Національного технічного університету "ХПІ". Сер. : Автомобіле- та тракторобудування = Bulletin of the National Technical University "KhPI". Ser. : Automobile and Tractor Construction : зб. наук. пр. – Харків : НТУ "ХПІ", 2022. – № 1. – С. 73-83.