Publications

Share / Export Citation / Email / Print / Text size:

Transport Problems

Silesian University of Technology

Subject: Economics , Transportation , Transportation Science & Technology

GET ALERTS

eISSN: 2300-861X

DESCRIPTION

FEATURED ARTICLES

SIMULATION OF THE ROUTE NETWORK AND FERRY TRAFFIC INTENSITY BASED ON THE PROCESS OF DISCRETIZATION AND CIRCOS PLOT INTENSITY DIAGRAM
DEVELOPMENT AND IMPLEMENTATION OF RETRO-REFLECTIVE ELEMENTS FOR AUTOMATIC ACCESSORIES AND PLACES OF PLANNED POINTS
ADAPTATION OF THE SERVQUAL METHOD FOR TESTING THE QUALITY OF PASSENGER AIR SERVICES
A Study of the Dynamic Parameters Influence over the Behavior of the Two-Section Articulated Vehicle during the Lane Change Manoeuvre

VOLUME 13 , ISSUE 3 (September 2018) - List of articles

MODEL OF THE MAINTENANCE AND REPAIR SYSTEM IN SERVICE MAINTENANCE MANAGEMENT

Dmitry BANNIKOV/ Nina SIRINA/ Alexander SMOLYANINOV

The model of service maintenance and repair of passenger rolling stock is considered as a multi-channel system. The presented model is implemented on the queuing model basis. The service maintenance and passenger rolling stock system stipulates not only for the transition to a new level of the maintenance system as a type of activity but as a means boosting up the economic growth rate and living standards. As a result, we managed to resolve the problem of the optimum design for the service maint(..)

DOI: 10.20858/tp.2018.13.3.1

IMPROVEMENT OF SUBURBAN RAILWAY SERVICES BY INFRASTRUCTURE AND TIMETABLE MODIFICATIONS BASED ON SIMULATION MODELLING

Hrvoje HARAMINA/ Ivan TALAN/ Branko MIHALJEVIĆ

As part of this research, a computer model of the existing bidirectional single-track railway line section between Zagreb Glavni and Turopolje railway stations has been developed, and it has been modified with the aim of developing a new model of the double-track line on this line section, and which in relation to the existing conditions also includes additionally the new stop Donja Lomnica. The purpose of developing the new model of the double-track line is to study the possibility of introduci(..)

DOI: 10.20858/tp.2018.13.3.2

THERMODYNAMIC ANALYSIS OF THE CONROD-FREE ENGINE

Tatiana KOLESNIKOVA/ Olha SAKNO/ Natalia VELMAGINA/ Olaksandr LYSYI

The paper considers the problems related with the thermodynamic analysis of the conrod-free engine. A mathematical model of the intake system of the conrod-free engine is proposed, which takes into account the kinematics of the slider-crank mechanism. The computational model of the intake system of the engine with the slidercrank mechanism is presented. The model allowed determining dependencies of the mixture temperature in the intake pipeline on the rotation frequency of crankshaft and on the (..)

DOI: 10.20858/tp.2018.13.3.3

EFFECT OF THE LOAD FACTOR ON THE TICKET PRICE

Stanislav SZABO/ Sebastián MAKÓ/ Alica TOBISOVÁ/ Peter HANÁK/ Marek PILÁT

The factor of the aircraft load or sometimes simply called the load factor is the rate of capacity of the airline. It is also known as the efficiency measure and is therefore the most commonly used estimate to describe the performance of the airline. Achieving high load factor is considerably important for the profitability of the airline, and it is interesting to identify factors that could influence the factors of the aircraft load. To describe the problem of load factor and airfare, we chose (..)

DOI: 10.20858/tp.2018.13.3.4

CURRENT SITUATION AND OPTIMIZATION OF INLAND WATERWAY INFRASTRUCTURE FINANCING

Svetlana MILOSLAVSKAYA/ Elena PLOTNIKOVA

This paper explores and summarizes the experience of financing water transport infrastructure of a number of countries with developed network of inland waterways, namely the USA, Russia and Germany. The purpose of the work is to generalize current situation and find ways of optimization of inland waterway transport infrastructure financing. The first part of the paper analyses the state of inland waterways infrastructure. The next part describes the existing financing systems. The last part exam(..)

DOI: 10.20858/tp.2018.13.3.5

WAYS TO ADDRESS THE CHALLENGES IN PASSENGER TRAFFIC WITHIN THE URBAN TRANSPORT SYSTEMS

Tamaz MORCHADZE/ Nunu RUSADZE

The paper dwells on developing the measures required for the effective functioning of urban bus routes, which are of great practical importance. As the analysis shows that in order to effectively organize urban passenger traffic and determine their optimal number on the routes, it is necessary to determine the pattern of changes in passenger flows, and on this basis, to distribute the number of buses in accordance with day–night hours. Based on this, an analysis of factors has been carried out a(..)

DOI: 10.20858/tp.2018.13.3.6

ELECTROCHEMICAL CYCLE FOR THE CONVERSION OF THE WASTE HEAT INTO ELECTRICAL ENERGY: THE POSSIBILITY OF USING IN WATER TRANSPORT

Sergei VASSEL/ Natalia VASSEL

We developed a concept and calculated an efficiency of the electrochemical cycle of converting low-grade heat (temperature difference 10-80°C) into electricity. The cycle could be divided into two stages: creating a concentration difference by a solution distilled in a temperature gradient and electricity generation in concentration galvanic cell. The calculation shows that the efficiency of converting heat into electricity could reach 40-55% of Carnot efficiency in a temperature range of 0-100°(..)

DOI: 10.20858/tp.2018.13.3.7

Published Online: 03-October-2018

INVESTIGATION OF CHARACTERISTICS AND THERMAL LOADING OF LED BULBS FOR AUTOMOTIVE HEADLIGHTS 

Petko MASHKOV/ Berkant GYOCH/ Rosen IVANOV

The aim of the study is related to obtain real data for the LEDs’ thermal load and characteristics of several LED lamps types H4 and H7 for automotive headlights with different cooling system. Power consumption, temperature regimes of the LEDs’ operation, lamps’ radiation spectral distribution, and luminous flux of lamps for automobile headlights with active and passive cooling system at different ambient temperatures have been investigated. The obtained data under real conditions of operation i(..)

DOI: 10.20858/tp.2018.13.3.8

Published Online: 03-October-2018

SOME GUIDANCE IN THE DESIGNING OF A ROLLER FOR THE AUTOMOTIVE TESTERS

Yulian ANGELOV/ Ivo DRAGANOV

This work presents some aspects related to the designing of a roller for stands that are intended to determine the parameters of the transmission of a vehicle, such as braking force, wheel revolutions, etc. The computational scheme of simply supported beam is used to create an analytical mechanical-mathematical model through which a multicriteria optimization problem has been solved. A finite element macro and submodel of the roller has been created, and by using the R1MS technique, the fatigue (..)

DOI: 10.20858/tp.2018.13.3.9

Published Online: 03-October-2018

ANALYSIS AND ASSESSMENT OF THE REGULARITY OF MASS URBAN PASSENGER TRANSPORT IN THE CONDITIONS OF THE CITY OF RUSE

Velizara PENCHEVA/ Aleksandar TSEKOV/ Ivan GEORGIEV/ Svilen KOSTADINOV

One of the quality indicators of the transport service in passenger transport is the regularity of the movement of vehicles. Apart from the planned traffic intervals, it depends on a number of factors related to the traffic conditions of the public transport in the locality (intensity and composition of the traffic flow, passenger traffic structure, traffic lights regime, atmospheric conditions, etc.). The paper assesses the regularity of mass urban passenger transport traffic in the conditions (..)

DOI: 10.20858/tp.2018.13.3.10

Published Online: 03-October-2018

INCREASING THE RESOURCE OF MILLING CUTTERS USED TO PROCESS THE LOCOMOTIVE WHEELSETS. PART 1: DETERMINATION OF CUTTING FORCES

Aleksander SKŁADKOWSKI/ Yuriy PROYDAK/ Vladislav RUBAN

The purpose of this work is to increase the service life of milling cutters for wheel-milling machines KJ20, and to improve the processing quality of the working surface of wheelsets of railway vehicles. Questions of operation of cylindrical cutting tools are considered, force characteristics are determined, and also analyzed their stressed state.

DOI: 10.20858/tp.2018.13.3.11

Published Online: 03-October-2018

STRENGTH ANALYSIS OF EXPERIMENTAL CRANE, USING PROLIFTOR 250 ROPE WINCH AS AN EXCITATION OF A GIRDER

Tomasz HANISZEWSKI

The article presents the research carried out on the experimental construction of a crane, where a hoist with an AC motor without a motor control system was used as an excitation signal for the girder. The purpose of the described research is to determine the relationship between the values of the dynamic surplus factor when lifting the load with the loose rope in the initial phase of lifting and the distance of the hoist from the supporting structure. The data was obtained based on the force te(..)

DOI: 10.20858/tp.2018.13.3.12

Published Online: 03-October-2018

THE CASE STUDY OF THE CARGOBEAMER SYSTEM USE IN RAIL TRANSPORT IN SLOVAKIA

Henryk KOMSTA/ Iwona RYBICKA/ Bibiana BUKOVA/ Eva BRUMERCIKOVA

The railway transport of goods was in past the most used type of transport. After the collapse of the Soviet Union, the performance of this mode of transport was reduced. At present, international trade is expanding in the direction of Asia–Europe. For economic and, above all, ecological reasons, it is appropriate to move the transport operations back to rail transport. The article focuses on progressive systems of railway transport of freight in the East–West direction, namely the use of the Ca(..)

DOI: 10.20858/tp.2018.13.3.13

Published Online: 03-October-2018

ENERGY CHARACTERISTICS OF CITROEN BERLINGO CONVERTED TO ELECTRIC VEHICLE

Rosen IVANOV/ Milen SAPUNDZHIEV/ Georgi KADIKYANOV/ Gergana STANEVA

This report introduces the study results of a Citroen Berlingo converted into an electric car. It presents the energy properties of road and laboratory tests. Initially the structure of the converted car is described, and characteristics of the main car elements are given. Then, the power and energy characteristics of the converted car are obtained and analyzed. On the road, energy consumption at different constant speeds is registered. In addition, at laboratory, the energy consumption during t(..)

DOI: 10.20858/tp.2018.13.3.14

No Record Found..
Page Actions