Scientific Journal of Silesian University of Technology. Series Transport

7

Authors: Hangardas ASKEROV, Igor VAKULENKO, Nikolaji GRISCHENKO

The systematization results of microstructure studies of carbon steel has made it possible to explain the mechanism of formation of certain damages to the rolling surface of railway wheels during operation. The evaluation ability of metal to strain hardening was used to explain the nature of the influence compactly located non-deformable dispersed particles on the strength properties steel during cold plastic deformation. In the process of the interaction of a railway wheel with a rail, successively occurring heterogeneities in the distribution of the plastic flow metal are one of the main reasons for the formation of defects on the rolling surface of the wheel.

10

Authors: Marta KAŁUŻA, Grzegorz SIERPIŃSKI

The article is an attempt to review the requirements and procedures which an investor who intends to build and commission an electric car charging station must follow. What has been highlighted is the conditions and restrictions associated with the siting of such facilities, the relevant safety requirements and the technical inspection procedures prior to the commissioning of a charging station

11

Authors: Ivaylo ANGELOV

The European Union is focusing on military capabilities and the fight against terrorism, but to a lesser extent on employment opportunities for immigrant integration, human rights and peace-building and the sustainability of countries and societies in Europe and around it. The European Union has always been proud of its soft power and will continue to do so in the area of security and defence. On the other hand, the idea of Europe as an extremely “civilian power” does not correspond to the changing reality. In this regard, the EU will need to deepen its transatlantic relationship and its partnership with NATO.

11

Authors: Robert KONOWROCKI

In this paper, the influence of electromechanical interaction in an electric motor on the railway vehicle driving system dynamics was investigated. This is the train driven by DC. In particular, there is considered influence of electromagnetic field between a rotor and stator on excitation of resonant torsional vibrations of the drive system. Conclusions drawn from the computational results can be very useful during the design phase of these devices as well as helpful for their users during regular maintenance.

11

Authors: Aleksandra ŚLIWIŃSKA

Improvement and increase of safeguarding civil aviation against acts of unlawful interference can be achieved at airports and on board aircraft, through the implementation of appropriate systems and devices. In addition to improving safeguarding civil aviation against such acts, solutions described as operational may be used; these usually are directly aimed at ensuring the safety and security of civil aviation. This research focuses on operational solutions that are used for safeguarding civil aviation against acts of unlawful interference. As a clue, safeguarding civil aviation is understood to be the whole organisational and legal, as well as operational and technical framework, undertaken to prevent acts of unlawful interference endangering the safety and security of civil aviation. The purpose of this study was to characterise operational solutions affecting the provision of civil aviation safeguarding against acts of unlawful interference. The research question was defined thus: What are the existing and potential operational solutions implemented at airports, and on board aircraft; do they improve and increase safeguarding civil aviation against acts of unlawful interference? As a hypothesis, it was assumed that there are many solutions, devices, activities, etc. used to safeguard civil aviation against acts of unlawful interference. All of them may be implemented within airports, on board aircraft, as well as can be taken in the forms of the operational solutions. Operational solutions are implemented through the provision and use of personal, organisational and procedural forces and resources and through the establishment of appropriate services. The existence and mutual correlations of these elements have an impact on improving the safeguarding of civil aviation against acts of unlawful interference.

13

Authors: Olimpia KUNERT

Know-how belongs to the intangible assets of enterprises. They are defined as information consisting of verified in practice technical knowledge and skills in goods trade (which are not covered by patents) allowing the entrepreneur to achieve a competitive advantage. Intangible assets are currently the key resource of enterprises, within which innovative competencies are included. They are not visible in the balance sheets of companies, they do not grow in proportion to property investments and do not yield to ownership. They have a spatial dimension of a special character, and they create the intellectual capital of the organisation, which along with the acquired knowledge, using active growth factors, can gain the ability to process innovations and act towards the development of the organisation. However, this is not always the case, hence, the attempt to answer the question of how not to lose valuable know-how in an industry. The conducted surveys among enterprises providing services for the industry have shown that they have innovative potential. This means that not only the industry and its development may affect the service sector and its performance, but the reverse - the service sector may influence the demand of the industrial sector. The article presents the potential for innovation growth with the employees’ own knowledge.

14

Authors: Ryszard HAĆ

The proper preparation of personnel of civil airports is justified in terms of safety and security of flight operations, airport capacity, which in turn affects the timeliness of air traffic. For airports, which have been created from scratch, in a social environment in which there are no aviation traditions, with the formal tightening of qualification rules for airport services personnel by the EASA, the selection of candidates for training, the formation of service teams, their training and cohesion constitutes a real challenge. At the discretion of airport management, the definition of minimum requirements with regard to competence, ways of training, gaining and developing professional competence, determining remit (important in terms of insurance) and specification of the manner of storing data about the competence and remit, also their resumption, extension, suspension, cancellation as well as time and duration of the refreshment. This practice, being an attribute of airport management, is commonly defined as "Under supervision of Airport Authority". For each airport function, individual training programmers are juxtaposed, using the themes listed for the first stage, second stage and for the practical course. The phase of continuous improvement focuses on the selected functions in the organisational structure of the airport. One of the elements determining the safety and efficiency of the operation of an airport is the proper selection of candidates for work, including the personalprofessional profile. Psychological studies, using available research tools, are used for this purpose. This article includes the results of studies conducted among work candidates in a newly created airport, in accordance with the following criteria: temperament, sense of control placement, coping with stress, intelligence and mental health abilities, attention, resilience, social competences, emotional intelligence. The study findings would be helpful in the management of the selection of employees and developing individual training programmes, preparing for work in specific positions at the airport.

16

Authors: Miroslav BLATNICKÝ, Ján DIŽO, Dalibor BARTA, Paweł DROŹDZIEL

This article discussed the determination of a metro vehicle’s door forces acting on its coarse structure. With previous articles addressing this issue, a definition of a specific reference vehicle was provided together with the collection of the normative requirements for metro vehicles. These form a basis for addressing the issue. The main objective hereof was to design a technical solution of a door system for the reference vehicle and create a parametric model of the door's forces acting on the vehicle’s rough structure. This model would serve to approximate and operatively quantify these force effects of the door to the vehicle’s structure by modifying the various input parameters. Therefore, it was necessary to create a mathematical model of the equilibrium conditions of the proposed door system and to quantify them using a developed software. Subsequently, these results served as inputs for the FEM analysis of the load-bearing components between the door and the vehicle’s structure.

18

Authors: Elżbieta MACIOSZEK, Agata KUREK

This paper is a case study, which among other things includes the analysis of the three roundabouts entry capacity: a turbo- and two spiralroundabouts. These intersections are located in one of the main road localised in Sosnowiec city (Poland). Before reconstruction, this road was characterised by unfavourable road and traffic conditions, insufficient capacity and low traffic safety level. The traffic congestion decreased significantly, traffic and road conditions, as well as the level of road traffic safety, were improved after the rebuilding of this route and the designing of three roundabouts on it. Results obtained from field measurements enabled comparative analysis of theoretical and empirical capacity values: lanes on the entry of turbo-roundabout and entries of the spiral-roundabout. This paper presents also characteristics of turbo- and spiralroundabouts with methods, which are dedicated to entry capacity calculation.