Кафедра "Інформаційні технології і системи колісних та гусеничних машин ім. О. О. Морозова"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/1744

Офіційний сайт кафедри http://web.kpi.kharkov.ua/kgm

Від 2005 року кафедра має назву "Інформаційні технології та системи колісних і гусеничних машин ім. О. О. Морозова", первісна назва – кафедра "Колісні та гусеничні машини".

Кафедра "Колісні та гусеничні машини" створена 2 грудня 1972 року. Ініціатором заснування кафедри був один із творців легендарного танка Т-34, головний конструктор ряду серійних танків (Т-44, Т-54, Т-64) і їхніх модифікацій, доктор технічних наук Олександр Олександрович Морозов, першим завідувачем – доктор технічних наук, професор Віталій Прокопович Аврамов.

Кафедра входить до складу Навчально-наукового інституту механічної інженерії і транспорту Національного технічного університету "Харківський політехнічний інститут".

У складі науково-педагогічного колективу кафедри працюють: 2 доктора технічних наук, 4 кандидата технічних наук; 2 співробітника мають звання професора, 4 – доцента.

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2015 - 20194

Налаштування

Автор: search.filters.author.Volontsevich, Dmitriy Olegovich

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  • Ескіз
    Документ
    Analysis of the influence of the inter-wheel differentials design on the resistance of the car curved motion
    (Технологический центр, 2019) Volontsevich, Dmitriy Olegovich; Mormylo, Jakov; Veretennikov, Ievgenii
    The method and results of the analysis of the influence of the inter-wheel differentials design and the corresponding proportionality factors for the additional locking torque on the curved motion resistance of the four-wheel drive vehicle on paved roads are given. This allows choosing the most suitable designs for the parametric synthesis of the internally automated inter-wheel differential taking into account the results of studying the efficiency of different types of inter-wheel differentials under off-road conditions. Parametric optimization will allow synthesizing the internally automated inter-wheel differential, which would satisfy the requirements both to the vehicle cross-country ability and dynamics while not preventing the curved motion. In the process of modeling, the influence of the design and parameters of the inter-wheel differentials on power consumption in the motion with the given speed and trajectory, as well as on the actual turning radius of the vehicle, was estimated. According to the modeling results, it is concluded that it is possible to create a permanent internally automated inter-wheel differential based on differentials, in which locking degree depends on the squared difference in angular velocities of the semiaxles. For this, it is necessary to carry out optimization with respect to the proportionality factor of the locking torque, taking into account the limitations set forth in the work and using the described method of analyzing the influence of the inter-wheel differentials design on turning resistance. This will allow the effective operation of military and civil four-wheel drive vehicles both in difficult road conditions and on paved roads. In addition, the process of driving will not distract the driver to control the inter-wheel differentials, and the transmission will be performed without undue design complications.
  • Ескіз
    Документ
    A refined technique for the automated determination of friction losses in the toothing of multithreaded transmissions with differential mechanisms and planetary gears
    (2017) Volontsevich, Dmitriy Olegovich; Veretennikov, Ievgenii; Kostianyk, I.; Pasechnyi, S.
    Multithreaded transmissions, which using differential mechanisms for separating and summing up power flows, have been widely used in the transmissions of transport vehicles and special drives. The quality of such transmissions and the magnitude of frictional losses in the toothing significantly depend on the adopted kinematic scheme and the ratio of powers passing through the corresponding links of the differential mechanisms. With the existing automated analysis and synthesis of such transmissions, a matrix approach has recently been widely used. The proposed work provides a refined technique for the automated determination of friction losses in the toothing of multithreaded transmissions which containing differential mechanisms and planetary gears. It makes it possible to more accurately determine friction losses in the toothing and at the same time preserves the linear structure of the system of equations, which permit to continue using the matrix approach to analyze and synthesize such transmissions. Examples are given for the formation of equations systems describing the force interaction between the elements of the scheme for all variants of the links commutation of planetary rows operating as three-link differential mechanisms and planetary gears with one stopped link. The work is based on the analysis of existing methods for determining friction losses in the toothing and personal practical experience in the design and study of multithreaded stepped and stepless transmissions. The received results allow to apply the offered technique in the modern program complexes focused on the automated analysis and synthesis of multithread transmissions with use of the matrix approach. This makes it possible to significantly reduce the time to develop new multithreaded transmissions and increase their technical characteristics.
  • Ескіз
    Документ
    Evaluation of the efficiency of the vehicle with various inter-wheeled differentials for different clutch conditions on sides in acceleration regime
    (Scientific-technical union of mechanical engineering "Industry-4.0", 2019) Volontsevich, Dmitriy Olegovich; Veretennikov, Ievgenii; Mormylo, Jakov; Karpov, V.
    In this paper, the dynamics of acceleration and energy costs for cars with various types of inter-wheeled differentials are analyzed. The used dynamic models for drive with: a classical symmetric conical open differential, a fully locked differential, and limitedslip differentials for which the locking torque depends on the load or the relative speed of rotation are described. During the study, the ratios of the adhesion coefficients under the right and left sides were varied. As a result of the work, tasks are formulated for further more detailed analysis of limited-slip differentials.
  • Ескіз
    Документ
    Electromechanical turning mechanism creating for tracked vehicle as first step to hybrid transmission
    (M. Auezov South Kazakhstan State University, 2015) Volontsevich, Dmitriy Olegovich; Duong, Sy Hiep
    In the proposed work on the example of tracked multifunctional transporter-tractor MT-LB authors identified critical turning radius depending on the speed and nature of the soil under the criterion of partial and full skid. For obtained turning radius when driving on heavy soils with a coefficient of resistance to rotation =0.8 on each transmittal the transmission power values were obtained, which is necessary to bring to the turning mechanism for the implementation of the rotation with a given radius. Proposed combination Turning Drive, which would allow using lower gears mechanical drive with fixed turning radius and in the upper gears - drive with infinitely variable turning radius. In addition, the proposed technical solution allows you to use the drive mechanism for turning short-term increase in power modes rectilinear motion due to the power stored in batteries, which will significantly improve the mobility characteristics of the machine.