DSpace Angular :: Browsing Выпуск 38 by Дата публікації

Документ

INDUCTION HEATING OF NON-MAGNETIC SHEET METALS IN THE FIELD OF A FLAT CIRCULAR MULTITURN SOLENOID

(Харьковский национальный автомобильно-дорожный университет, 2016) Batygin, Y.; Gnatov, A.; Argun, Sch.; Sabokar, O.; Батыгин, Ю. В.; Гнатов, А. В.; Аргун, Щ. В.; Сабокарь, О. С.; Батигін, Ю. В.

The theoretical analysis of electromagnetic processes in the system for induction heating presented by a flat circular multiturn solenoid positioned above a plane of thin sheet non-magnetic metal has been conducted. The calculated dependences for the current induced in a metal sheet blank and ratio of transformation determined have been obtained. The maximal value of the transformation ratio with regard to spreading the eddy-currents over the whole area of the sheet metal has been determined.

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ТЕОРЕТИЧНІ ДОСЛІДЖЕННЯ РОБОЧОГО ЦИКЛУ БІОДИЗЕЛЬНОГО ДВИГУНА

(Харьковский национальный автомобильно-дорожный университет, 2016) Лєвтєров, А. М.; Авраменко, А. Н.; Савицький, В. Д.; Левтеров, А. М.; Савицкий, В. Д.; Lyevtyerov, А.; Avramenko, A.; Savyts’kyy, V.

Наведено результати порівняльного аналізу розрахункових індикаторних показників робочого циклу дизеля за використання мінерального і сумішевого біодизельного палива. Визначено причини зниження термодинамічної ефективності циклу та покращення екологічних характеристик біодизельного двигуна порівняно з дизелем, що працює на традиційному паливі.

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USING SUSTAINABLE DEVELOPMENT PRINCIPLES TO ASSESS THE EFFICIENCY OF TRANSPORT INTERCHANGES FUNCTIONING

(Харьковский национальный автомобильно-дорожный университет, 2016) Samchuk, G.; Самчук, А. А.; Самчук, Г. О.

The expediency of using the sustainable development principles for assessing the efficiency of public transport interchange functioning is shown. The passenger waiting time, the probable number of accidents in the area of transport interchanges, the queuing delay, and the amount of total emissions as CO2 equivalent were chosen as indicators that the efficiency criterion includes.

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REGULARITIES OF THE FLOW OF SINGLE FREIGHTAGES FOR THE INTERCITY FREIGHT TRANSPORTATION

(Харьковский национальный автомобильно-дорожный университет, 2016) Mospan, N.; Мосьпан, Н. В.

It was experimentally proved that a number of single intercity freightages in Ukraine is dis-tributed by the Poisson law. And a single freightage flow in conditions of its occurrence corre-sponds to the simplest flow and is actually the simplest one. Due to the fact this flow is the result of a big number of different shippers’ activityies, formation of an single intercity freightage is a rare event for each of them.

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THE PECULIARITIES OF HEAT LOSSES SIMULATION OF AUTOMOTIVE GASOLINE ENGINE IN OPERATIONAL CONDITIONS

(Харьковский национальный автомобильно-дорожный университет, 2016) Tsiuman, M.; Artemenko, R.; Цюман, М. П.; Артеменко, Р. В.

The heat balance of gasoline engine is analyzed and the losses of received energy from fuel are simulated. It's based on the using the experimental diagram of engine operating cycle. The power balance of automotive engine for the appropriate modes of the moving vehicle is evaluated. The driving cycleis used in accordance with the UNECE Regulations № 83-05.

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THE PROGRAM OF NON-RIGID PAVEMENT COMPUTER-AIDED CALCULATION УКРРДО 15

(Харьковский национальный автомобильно-дорожный университет, 2016) Musiienko, I.; Мусиенко, И. В.; Мусієнко, І. В.

A program for computer-aided calculation of non-rigid road coating UKRRDO 15 is considered in the given article. The program interface, a set of input data and the results of calculations are considered in detail. Calculations are performed for three strength criteria: permissible elastic deflection, shear strength of subsoil and monolithic layers resistance of tensile bending.

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RISK ASSESSMENT OF THE HIGHWAY EQUIPPED WITH PROTECTIVE ENGINEERING STRUCTURES

(Харьковский национальный автомобильно-дорожный университет, 2016) Khvorost, M.; Danova, K.; Malysheva, V.; Хворост, Н. В.; Данова, К. В.; Малышева, В. В.; Хворост, М. В.; Малишева, В. В.

The problem of risk assessment of a highway section, which is equipped with protective en-gineering structures to reduce the ingredient-parametric pollution in the dwelling zone is considered, and the methodology of risk assessment «Failure Mode and Effects Analysis» (FMEA) is used to estimate the priority areas of increasing the level of safety in exploitation of the highway equipped with the protective screen.

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ЗАГАЛЬНІ ВІДОМОСТІ ПРО ЖУРНАЛ

(Харьковский национальный автомобильно-дорожный университет, 2016)

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FUTURE ENGINEER TRAINING: MOTIVATING TECHNIQUES

(Харьковский национальный автомобильно-дорожный университет, 2016) Novikova, Ye.; Новикова, Е. Б.; Новікова, Є. Б.

The motivating techniques for training future engineer are proposed. Intrinsic and extrinsic motivations in professional training have been analyzed. The peculiarities of the formation process of students’ motivation in learning language at non-language universities have been systematized. Heuristic training technology based on students’ motivation to cognitive research has been implemented.

Документ

MULTINOMINAL LOGIT MODEL OF BICYCLIST ROUTE CHOICE

(Харьковский национальный автомобильно-дорожный университет, 2016) Chernyshova, O.; Чернышёва, Е. С.; Чернишова, О. С.

The paper presents the multinominal logit discrete choice model that allows determining pa-rameters coefficients of the cyclists’ route. The basic model includes six parameters, however, only a number of signalized intersections, speed of motorized traffic and total physical work re-quired from cyclist prove to be significant factors. The model provides a better understanding about cyclist traffic assignment.

Документ

NONLINEAR DYNAMICS OF A ROTOR WITH CANTILEVERED DISK RESTING ON ANGULAR CONTACT BALL BEARINGS

(Харьковский национальный автомобильно-дорожный университет, 2016) Filipkovskyi, S.; Филипковский, С. В.; Філіпковський, С. В.

The mathematical model of nonlinear oscillations of the rotor resting on angular contact ball bearings is developed. The disc is fixed on the console end of the shaft. The deflection of the shaft, and the elastic deformation of the bearings have the same order. Analysis of free oscillations is carried out, using nonlinear normal modes. The modes and backbone curves of rotor nonlinear oscillations are calculated. The system has soft characteristics.

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FORMATION OF INDICATORS THE PROCESSES OF PREHEATING AND HEATING AFTER THE VEHICULAR ENGINE START BY USING COMPLEX HEATING SYSTEM WITH PHASE-TRANSITIONAL THERMAL ACCUMULATOR

(Харьковский национальный автомобильно-дорожный университет, 2016) Volkov, V.; Grytsuk, I.; Волков, В. П.; Грицук, И. В.; Грицук, І. В.

The article deals with the features of applying a vehicular engine complex heating system with phase-transitional thermal accumulator. The results of experimental studies of heating the vehic-ular engine are shown. Using a phase-transitional thermal accumulator in the engine coolant heater system allows to considerably reduce the time for heating.

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SUBSTANTIATION OF RULES FOR SETTING OF RETAINING PROTECTIVE BUILDINGS AGAINST LANDSLIDE ON HIGHWAYS IN MOUNTAINOUS AREAS

(Харьковский национальный автомобильно-дорожный университет, 2016) Тymchenko, О.; Тимченко, О. Н.

The grounding of choice of necessary construction of retaining protective buildings and their location on landslide areas is carried out. It has been noted that the efficiency of protective measures is provided on condition of landslide process development studying, the geological structure of the sliding dangerous territory, the form and conditions of the glide surface and studying of the water-bearing horizons.

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SOME ASPECTS OF TRAINING SOCIALLY RESPONSIBLE ENGINEERS ABROAD

(Харьковский национальный автомобильно-дорожный университет, 2016) Sayenko, N.; Sozykina, G.; Саенко, Н. В.; Созыкина, А. С.; Саєнко, Н. В.; Созикіна, Г. С.

The article gives an overview of various concepts of social responsibility abroad. It is under-lined that Ukrainian technical universities should borrow the best practices of ethical education from foreign countries. Analysis of social responsibility content and structural components as well as some ways of its development abroad is given.

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USE OF WET CONCRETE SPRAYING IN BUILDING TECHNOLOGY OF REIN-FORCED-CONCRETE FIBER SLABS ACCORDING TO «MONOFANT» SYSTEM

(Харьковский национальный автомобильно-дорожный университет, 2016) Bugayevskiy, S.; Бугаевский, С. А,; Бугаєвський, С. О.

Technology of cementation of reinforced-concrete slabs with non-extractable-liners for the «Monofant» system, using wet concrete spraying is implemented. A compression test for obtained columns made of fiber concrete is carried out.

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COMPARATIVE ANALYSIS OF PERFORMANCE CHARACTERISTICS OF JET VORTEX TYPE SUPERCHAGES

(Харьковский национальный автомобильно-дорожный университет, 2016) Rogovyi, A.; Voronova, Ye.; Роговой, А. С.; Воронова, Е. М.; Роговий, А. С.; Воронова, Є. М.

On the basis of mathematical modeling there was carried out a comparative analysis of characteristics of jet vortex type superchargers. Dependences of the energy performance of vortex ejector on the geometry parameters and the largest values in terms of efficiency as well as the coefficient of ejection are analyzed. There were built combined characteristics of vortex chamber pumps and vortex ejectors. Vortex chamber pump has advantage pressure in an exit channel over the vortex ejector, consequently there is a more effective power transmission from a working medium, besides the withdrawal of pumping medium in a tangential channel allows to avoid energy losses owing to rotation of a stream in an exit channel.

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OBJECT-ORIENTED APPROACH TO FORWARDING SERVICE PROCESS SIMULATION

(Харьковский национальный автомобильно-дорожный университет, 2016) Naumov, V.; Kopytkov, D.; Наумов, В. С.; Копытков, Д. М.; Копитков, Д. М.

The basic structure of simulation model of the forwarding service process for motor transport has been given. Base classes and interfaces of the simulation model have been presented in order to develop suitable decision-making support software. It has been demonstrated that at the moment the simulation is the most acceptable option in forecasting the demand for freight forwarding services and interaction between agents at the transport service market.

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METHOD OF PRESSURE SENSOR DYNAMICS DETERMINATION USING REDUNDANT MEASUREMENTS

(Харьковский национальный автомобильно-дорожный университет, 2016) Brovko, Ya.; Бровко, Я. С.

The method of determining the dynamic characteristics of linear inertial pressure sensors based on one known sensor with redundant measurements usage is proposed. A method based on the approximate system of solving measurement inverse problems is offered. The proposed method ensures a lower relative measurement error as compared with any other existing method.

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HYBRID VEHICLE CONTROL SYSTEM

(Харьковский национальный автомобильно-дорожный университет, 2016) Dvadnenko, V.; Двадненко, В. Я.

The hybrid vehicle control system includes a start–stop system for an internal combustion en-gine. The system works in a hybrid mode and normal vehicle operation. To simplify the start–stop system, there were user new possibilities of a hybrid car, which appeared after the conversion. Results of the circuit design of the proposed system of basic blocks are analyzed.

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VISCOELASTIC STRUCTURAL MODEL OF ASPHALT CONCRETE

(Харьковский национальный автомобильно-дорожный университет, 2016) Bogomolov, V.; Zhdanyuk, V.; Tsynka, A.; Богомолов, В. А.; Жданюк, В. К.; Цинка, А. А.; Богомолов, В. О.; Цинка, А. О.

The viscoelastic rheological model of asphalt concrete based on the generalized Kelvin model is offered. The mathematical model of asphalt concrete viscoelastic behavior that can be used for calculation of asphalt concrete upper layers of non-rigid pavements for strength and rutting has been developed. It has been proved that the structural model of Burgers does not fully meet all the requirements of the asphalt-concrete.

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