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Transport Problems

Silesian University of Technology

Subject: Economics , Transportation , Transportation Science & Technology

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ISSN: 1896-0596
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 14 , ISSUE 3 (September 2019) - List of articles

INVESTIGATION OF DYNAMIC PROCESSES IN A GEARBOX WITH DEFECTS

Paulius BOGDEVIČIUS/ Marijonas BOGDEVIČIUS/ Olegas PRENTKOVSKIS

The article presents theoretical research of a transmission system that allows examination of the dynamic processes evaluating different sizes of defects in gear tooth (0%, 20%, 50%, 80% of teeth width) and gaps between the connection of the gear teeth. The dynamics of the transmission is described using the finite element method and discreet elements. This paper presents and analyzes the results of mathematical experiments on this system.

DOI: 10.20858/tp.2019.14.3.1

Published Online: 04-November-2019

A MODEL OF TRANSIT FREIGHT DISTRIBUTION ON A RAILWAY  NETWORK

Dmytro KOZACHENKO/ Vladyslav SKALOZUB/ Bogdan GERA/ Yuliia HERMANIUK/ Ruslana KOROBIOVA/ Aleksandra GORBOVA

The peculiarity of the transit freight transportation by rail in international traffic is the fact that while performing transportation, the railway administrations are in competition among themselves. At the same time, the routes of cargo traffic volumes significantly depend on the conditions of transportation by railways of individual states. The mathematical model for the distribution of transit freight traffic volumes on the railway network, based on the methods of graph theory and game theo(..)

DOI: 10.20858/tp.2019.14.3.2

Published Online: 04-November-2019

EFFECTS OF RAIL-WHEEL PARAMETERS ON VERTICAL VIBRATIONS OF VEHICLES USING A VEHICLE–TRACK-COUPLED MODEL

Stasys STEIŠŪNAS/ Gintautas BUREIKA/ Mykola GORBUNOV

This paper presents an insight into mathematical analysis of dynamic models of the vehicle–track system. After identification of its advantages and disadvantages, an improved three-dimensional "vehicle–track" system of a mathematical model is presented. It not only assesses the influence of realistic track irregularities but also on all elements of the railway structure: rail, rail pads, sleepers, ballasts, and subballast parameters on the wagon’s movement smoothness. Based on the expanded mathe(..)

DOI: 10.20858/tp.2019.14.3.3

Published Online: 04-November-2019

CREATION OF PROMISING TRANSPORTATION DEVICES USING MECHANISMS BASED ON FLEXIBLE TUBULAR ELEMENTS

Olga BARYSHNIKOVA

This article presents the design of various mechanisms, the main working element of which is a flexible tubular element. The principle of operation and advantages of flexible elements allowing to create perspective devices and mechanisms are described. The problems of selection of the geometrical parameters of flexible tubular springs and evaluation of the strength characteristics are solved.

DOI: 10.20858/tp.2019.14.3.4

Published Online: 04-November-2019

DEVELOPMENT OF A LEVELING SYSTEM FOR CONSTRUCTION EQUIPMENT

Denis DEDOV/ Alexandr SIUKHIN/ Artem OBUKHOV

The quality of the roadway has a significant impact on the ability of drivers to drive their vehicles. Violation of the integrity of the coating, its geometrical parameters (shape), and the condition of the surface of the coating adversely affect the behavior of drivers, does not allow for correct driving of the vehicle, and leads to the occurrence of traffic accidents of varying severity. The current problem in the implementation of road construction works is to increase the level of automation(..)

DOI: 10.20858/tp.2019.14.3.5

Published Online: 04-November-2019

RESEARCH ON RELATIONSHIP BETWEEN FREIGHT TRANSPORT AND TRANSPORT INFRASTRUCTURE IN SELECTED EUROPEAN COUNTRIES

Jozef GNAP/ Pavol VARJAN/ Pavol ĎURANA/ Mariusz KOSTRZEWSKI

The article deals with research on the relationship between the performance of road and rail freight transport and transport infrastructure in EU countries. The authors of the article examined the relationship between transport performance and transport infrastructure by correlation and regression analyses. Verification of the statistical significance of the regression model was also performed. The main objective of the contribution is to find out what are the relationships and influences betwee(..)

DOI: 10.20858/tp.2019.14.3.6

Published Online: 04-November-2019

SELECTION PROCESS AS A KEY HUMAN ASPECT IN AIR TRAFFIC CONTROL

David LANGR/ Jindřich PLOCH/ Petr RUDOLF/ Stanislav SZABO/ Iveta VAJDOVÁ

The article deals with the characteristics of the provision of air traffic services (in member states of European Civil Aviation Conference (ECAC)), as one of the main subject supporting global tourism, as well as with the selection of suitable candidates for the air traffic controller profession and the means and methods that are being used for the selection of eligible candidates. The authors present an original elaboration of approaches to selection processes in the Czech Republic in the cont(..)

DOI: 10.20858/tp.2019.14.3.7

Published Online: 04-November-2019

ANALYSIS OF SHAFT WEAR IN TURBOCHARGES OF AUTOMOTIVE VEHICLES

Damian HADRYŚ/ Henryk BĄKOWSKI/ Zbigniew STANIK/ Andrzej KUBIK

The article presents the results of the investigations of turbocharger shaft bearing using different kinds of lubrication conditions (dry friction and lubrication with different kind of oils). In particular, the wear of the turbocharger shaft surface was evaluated. One of the most frequent failures is the seizure of the turbocharger shaft in the slide bearing, causing its rotation, which leads to destruction of the assembly and costly repairs. On the basis of the conducted tests, it was found th(..)

DOI: 10.20858/tp.2019.14.3.8

Published Online: 04-November-2019

THE IMPACT OF TRAILER CONDITIONS ON THE QUALITY OF REFRIGERATED FOOD TRANSPORT SERVICES – A CASE STUDY

Teresa GAJEWSKA/ Augustyn LORENC

The carriage of food products, in particular fresh products, is particularly sensitive to transport conditions. The aim of this paper is to examine the effect of trailer conditions on the quality of refrigerated food transport services. Six wireless measuring devices installed permanently in 3 trailers were used for the analysis. The built-in transmitter sensors have enabled the collection of data in the areas of temperature, humidity, pressure, shock and light intensity. Monitoring parameters v(..)

DOI: 10.20858/tp.2019.14.3.9

Published Online: 04-November-2019

STUDY OF THE USE OF ALTERNATIVE ENERGY SOURCES IN INLAND WATERWAY TRANSPORT

Velizara PENCHEVA/ Asen ASENOV/ Ivan BELOEV/ Valeri GEORGIEV

A study has been conducted on the use of alternative energy sources for propulsion of a vessel in inland waterway transport. It is clear that at this stage it is most appropriate to use a vessel designed for short-haul trips between two banks of a ferryboat for passengers and luggage or for recreation and entertainment. On this basis, research has been conducted on a newly designed and built vessel to carry up to 12 people. The drive is fully powered by 180-Ah batteries at 48 V. The batteries ar(..)

DOI: 10.20858/tp.2019.14.3.10

Published Online: 04-November-2019

CONTROLLING OF TRAIN’S INTERIOR HEATING SYSTEM FOR MAXIMUM ENERGY EFFICIENCY

Dāvis BUŠS/ Jānis EIDUKS

Heating systems in diesel multiple unit (DMU) trains often use additional mechanical and/or electrical auxiliary power, increasing fuel consumption, while waste heat is available from the diesel engine. Delivery of waste heat for heating of multiple carriages is analysed as realized in DR1 and D1 series trains, in light of the current standards of passenger comfort and in-depth testing of DR1B trains. A new hybrid hot air and electrical heating system and its control algorithm is reviewed for mo(..)

DOI: 10.20858/tp.2019.14.3.11

Published Online: 04-November-2019

THE APPLICATION OF THE PROGRESSIVE DECISION-MAKING METHODS IN THE ELECTRONIC PAYMENT SYSTEM IN PUBLIC TRANSPORT

Pawel DROŹDZIEL/ Iwona RYBICKA/ Eva BRUMERCIKOVA/ Bibiana BUKOVA

In 2018, there was an empirical research conducted in passengers' interest in innovative methods of passenger handling within passenger transport in the Slovak Republic. The research determined the knowledge of passengers regarding new methods, namely, NFC technologies, EMV technologies and ABT technologies. The article defines the methodology of choosing an electronic payment system within public transport, followed by partial results of research multicriteria evaluation of alternatives electro(..)

DOI: 10.20858/tp.2019.14.3.12

Published Online: 04-November-2019

EXPERIMENTAL VERIFICATION OF PSYCHOPHYSIOLOGICAL PERFORMANCE OF A SELECTED FLIGHT PERSONNEL AND SW: PRESURVEY FOR TRANSPORT SAFETY

Miroslav KELEMEN/ Matej ANTOŠKO/ Stanislav SZABO/ Luboš SOCHA/ Jaroslav JEVČÁK/ Ladislav CHOMA/ Alica TOBISOVÁ

Flight personnel have various factors that cause high psychological stress during the performance of flight tasks, thereby influencing their psycho-physiological experience, which may be a cause of a breach of air traffic safety. The paper presents the results of an experimental verification of task management under load, which allowed selection of probands from a sample of 100 participants in the presurvey. Overall, 70% of the probands achieved better results than the minimum level of success o(..)

DOI: 10.20858/tp.2019.14.3.13

Published Online: 04-November-2019

CONTROL OF THE BEGINNING OF ACCIDENTS IN RAILROAD OPERATION SAFETY SYSTEMS IN SEISMICALLY ACTIVE REGIONS USING THE NOISE TECHNOLOGY

Telman ALIEV/ Tofig BABAYEV/ Tahir ALIZADA/ Narmin RZAYEVA

On the railroads in seismically active regions, the impact of frequent weak earthquakes accelerates the initiation of defects such as wear and tear, cracks and deformation due to fatigue. An analysis of the types and stages of initiation and development of defects preceding accidents at technical facilities has shown that the registration of the beginning of the latent period of transition of objects to an emergency state based on the results of traditional technologies of analysis of measuremen(..)

DOI: 10.20858/tp.2019.14.3.14

Published Online: 04-November-2019

PARALLEL COMPUTATIONS AND CO-SIMULATION IN UNIVERSAL MECHANISM SOFTWARE. PART I: ALGORITHMS AND IMPLEMENTATION

Dmitry POGORELOV/ Alexander RODIKOV/ Roman KOVALEV

Parallel computations speed up simulation of multibody system dynamics, in particular, dynamics of railway vehicles and trains. It is important for reduction of required time at the stage of new railway vehicle design, for increase of complexity of studied problems and for real-time applications. We consider realization of parallel computations in Universal Mechanism software in three different areas: simulation of rail vehicle and train dynamics, evaluation of wheel profile wear and multi-varia(..)

DOI: 10.20858/tp.2019.14.3.15

Published Online: 04-November-2019

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