Browsing 2021 by Title
Now showing items 1-20 of 68
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3D-Modeling for Life Cycle of the Structure
(БНТУ, 2021)Owners and construction management are in permanent search to increase competitiveness, reduce cost and time and maintain a high quality of products and services. In this objective project management tend to organize work execution by implementing comprehensive, linked and sequential processes, making full use of every work effort and limiting work duplication and rework. Since ...2021-02-04 -
Automated Tire Pressure Control System for Multi-Purpose Wheeled Vehicles
(БНТУ, 2021)The cross-country capability of multi-purpose wheeled vehicles is one of the most important operational properties of these technical objects. In many ways, it is determined by their traction characteristics. There are a number of ways to improve traction and coupling properties of multipurpose wheeled vehicles, the main ones are the use of various kinds of traction control ...2021-02-04 -
Automobile Absorption Conditioner
(БНТУ, 2021)The purpose of this study is to develop a circuit for an automobile air conditioner, which will reduce the consumption of power developed by the engine. This paper proposes the design of an automobile absorption air conditioner. A description of the principle of operation of an automobile absorption air conditioner operating on a cycle of a one-stage absorption refrigeration ...2021-10-08 -
Blending Control of Trolleybus Traction and Brake Drives to Enhance Braking Efficiency of Vehicle
(БНТУ, 2021)The widespread use of green public transport is a priority strategy to reduce a congestion and pollution from road traffic in many cities. The trolleybus is a type of urban public electric transport, which is considered as a promising tool for increasing the efficiency of public transport and achieving the goals of sustainable development and quality of life in the city. The ...2021-04-08 -
Cement-Based Materials Modified with Nanoscale Additives
(БНТУ, 2021)The most common and reliable material without which modern construction is indispensable is concrete. The deve- lopment of construction production is pushing for new solutions to improve the quality of concrete mix and concrete. The most demanded and significant indicators of a concrete mixture are the compressive strength and mobility of the concrete mixture. Every year, the ...2021-06-07 -
Control of Pneumatic Actuator for Automated Mechanical Transmission Dry Friction Clutch Base on the Pulse Width Modulation Signal
(БНТУ, 2021)To ensure quality of dry friction clutch engagement in automated mechanical transmission during vehicle starting-up and maneuvering the control range of clutch actuator has to be maximum wide. It depends on the consistency of the clutch actuator geometric parameters with the electrical characteristics of the used solenoid valves, the output stage of the controller and the PWM ...2021-02-04 -
Development of Technological Solutions for Sewer Rehabilitation Using Clinker Brick
(БНТУ, 2021)The aim of the work is to develop a technology for the restoration of damaged sections of sewer collectors using clinker bricks. A significant part of such collectors in the Ukraine has completely exhausted their depreciation resource. For their construction, concrete and reinforced concrete were used, which are subject to destruction as a result of the influence of many factors ...2021-12-02 -
Fuel Consumption of Wheeled Vehicle and Transportation Costs during Highway Construction/Reconstruction
(БНТУ, 2021)A method is proposed for determining the fuel consumption of a wheeled vehicle depending on its speed, road surface flatness and road slope in the longitudinal direction. The purpose of the research is to derive mathematical relationships for calculating the fuel consumption of vehicles, which is one of the transport cost factors during the construction/ reconstruction or overhaul ...2021-12-02 -
Improving the Energy Performance of Traction Electric Drive Vehicles in Solving Electric Braking
(БНТУ, 2021)The effectiveness of the electric braking system largely depends on how the braking is carried out, whether the braking characteristics that it forms are acceptable for a given vehicle, how simple and reliable the technical solutions embedded in the system are, and where the braking energy is used. With electric braking, it is possible not only to extinguish the electrical energy ...2021-02-04 -
Influence of the Cut Axial Depth on Surface Roughness at High-Speed Milling of Thin-Walled Workpieces
(БНТУ, 2021)The paper presents the results of research on the dynamics of end milling of thin-walled work-pieces having complex geometric shapes. Since the milling process with shallow depths of cut is characterized by high intermittent cutting, the proportion of regenerative vibrations decreases, and the effect of forced vibrations on the dynamics of the process, on the contrary, increases. ...2021-04-08 -
Innovative Urban Transport System – Autonomous and Locally Low-Emission
(БНТУ, 2021)In recent years, intensive research on urban transport has been observed. The search is about finding such solutions that will enable, among others: increasing the importance of public transport, matching transport for the needs of people with reduced mobility, increasing capacity, reducing emissions, energy efficiency (technical and organizational dimension through the organization ...2021-06-08 -
Organization of Six-Cylinder Tractor Diesel Working Process
(БНТУ, 2021)The purpose of the work is to consider the organization of the working process of six-cylinder diesel engines with a power of 116 and 156 kW and exhaust gas recirculation. The following systems and components were used in the experimental configurations of the engine: Common Rail BOSСH accumulator fuel injection system with an injection pressure of 140 MPa, equipped with ...2021-10-07 -
Simulation Model for Drivability Assessment and Optimization of Hybrid Drive Trains
(БНТУ, 2021)The growing electrification of vehicle drive trains is increasing their complexity significantly. The interactions between the different drive train components should not be noticed negatively by the occupants, which is considered as good drivability and thus contributes to increasing customer acceptance. Today’s development processes of hybrid- and electric driven cars consider ...2021-02-04 -
Thermodynamic Estimation of the Parameters for the C–H–O–N–Me-Systems as Operating Fluid Simulants for New Processes of Powder Thermal Spraying and Spheroidizing
(БНТУ, 2021)Over the past few years, a group of new processes was developed for high-temperature, including plasma electric arc spraying (at ambient pressure) and spheroidizing of some ceramic and metal powder materials with the use of gaseous hydrocarbons in the heat carriers as well as with feeding of organic additions into a high-temperature jet, in particular, polymeric ones, to control ...2021-10-06 -
Ways to Improve Road Safety Audit in the Republic of Kazakhstan
(БНТУ, 2021)There are two types of internationally recognized engineering approaches to addressing road safety issues – proactive and reactive. Predicted or proactive approach includes prevention of accidents and taking corrective measures before accidents can occur. One example of this approach is road safety audit, which is a relatively new tool in developing countries. The paper has ...2021-02-04 -
Алгоритм решения задачи проектирования региональной логистической инфраструктуры
(БНТУ, 2021)Рассмотрен алгоритм решения задачи поиска оптимальной дислокации ключевых объектов транспортной и складской инфраструктур в рамках методологического подхода проектирования логистической инфраструктуры на территории регионов стран. Методологический подход включает в себя три этапа. На первом этапе определяются районы, где целесообразно размещение ключевых объектов региональной ...2021-07-20 -
Анализ условий размещения на дорогах и характеристик железнодорожных переездов Республики Казахстан
(БНТУ, 2021)Дорожно-транспортные происшествия автомобилей с подвижным составом железных дорог приводят к наиболее тяжелым последствиям. Многие железнодорожные переезды являются местами длительных задержек транспортных средств как до, так и после дорожно-транспортного происшествия. Во многих случаях пересечения автомобильных дорог с железнодорожными путями резко ограничивают пропускную ...2021-06-08 -
Аналитический синтез управляющего ускорения беспилотного летательного аппарата
(БНТУ, 2021)Решается задача аналитического синтеза управляющего ускорения беспилотного летательного аппарата (БЛА) при его полете по сложной траектории, состоящей из последовательно расположенных участков горизонтального полета, находящихся на разной высоте относительно земной поверхности. Задача решается как аналитическое определение оптимального управления линейной нестационарной системой ...2021-07-20 -
Вакуумный пневмотранспорт для производственных и коммунально-бытовых компонентов
(БНТУ, 2021)Образование коммунально-бытовых компонентов жизнедеятельности человека и производственных предприятий неизбежно, уровень их использования в Беларуси в среднем увеличился до 23 %. В статье дана оценка существующих систем сбора и удаления отработанных твердых бытовых элементов исходя из технологических этапов (подготовка компонентов к погрузке в мусороуборочный транспорт; организация ...2021-04-08 -
Влияние карбонизации бетонных поверхностей на их сцепление со свежеуложенным бетоном
(БНТУ, 2021)В процессе эксплуатации бетонные и железобетонные конструкции подвержены воздействию агрессивной среды углекислого газа. При реконструкции и капитальном ремонте причальных сооружений прибрежной зоны морей Дальнего Востока установлена слабая прочность сцепления «старого» карбонизированного и «нового» ремонтного бетонов. Причиной, препятствующей надежному сцеплению бетонов, является ...2021-07-20