Table of Contents


    • Investigation of the thermostatic system of high-voltage components of an electric vehicle in real time during the XIL experiment

      pg(s) 75-78

      The automotive industry is facing new challenges in the electric vehicle segment. It is relevant to conduct joint research of various vehicle systems in a common virtual physical environment, which will allow combining a large number of test rigs located in different parts of the world. A common virtual physical environment, called X-in-the-loop, was developed, as a part of these studies. The work involves the joint connection and use of test rig for various purposes, software simulators, driving simulators, etc., to conduct a comprehensive study of the components and systems of electric vehicles in real time. The development of the thermostating system for highvoltage components is an urgent and important task when creating modern electric vehicles. A test rig was created at FSUE NAMI to study the operation of the thermostating system for high-voltage components of an electric vehicle’s traction drive. The test rig includes a physical simulation of high-voltage components of the traction drive of an electric vehicle from the point of view of temperature and hydraulic conditions of the components studied at other test rigs included in the XIL experiments. The scientific article presents the concept of a developed test rig. The article also describes the test modes that were necessary to conduct research on various components and systems of electric vehicles in various conditions. The article describes a method for controlling the actuators of the thermostating system and devices designed to reproduce the thermal and hydraulic characteristics of cooled objects (motor-wheels and inverters) in real time. A test rig for the study of the thermostating system of high-voltage components, modelling, prototyping and testing were carried out in the process of developing.

    • Adhesive technology in the automotive industry

      pg(s) 79-82

      The paper presents the results of the research focused on the determination of the quality of adhesive joints of cold rolled sheets in the automotive industry. DC05 galvanized sheet was used for joints. A progressive type of adhesive used in the automotive industry was chosen. The shear and peel strength of the adhesive joints according to Winter were determined. The strength of the joints was determined depending on the cure temperature of the adhesive. After tests, the character of fracture surfaces of adhesive joints was evaluated.

    • Application of regression analysis on some thickness measurement data collected for inner bottom plates of aging bulk carriers

      pg(s) 83-87

      In this article we analyzed real thickness measurement data collected on aged bulk carrier. Totally 25 aging bulk carriers were investigate under the 38 special ships surveys. As it is most important part of bulk carriers are fuel oil tanks, which can be located in different areas, in this article we analyze fuel oil tanks located in double bottom tanks. During exploitation life of ships there are lot of influenced factor as it is cargo operation, maintains, type of cargo, transport route and etc., which can accelerate corrosion and lead to different steal damage. From that reason it is important to analyze corrosion data in order to describe the expected corrosion. The aim of this article is to analysis totally 3136 thickness measurement data and find some correlation between the measured values and the time. It is clearly seen that the number of measurements increases with the time which can affect the results of the statistical analysis. Obtained statistical and graphical results show that the linear regression between statistical value and the Year parameter would be well appropriate to describe estimation model for inner bottom plates of bulk carriers.

    • Determining the forces for a plate – spring at a pull clutch on the supporting straps

      pg(s) 88-89

      The development of vehicles and the expected higher demand those face-up requires lighter assemblies of the installation. The achievements in clutch design during recent years led to the so-called pull clutches. Their main features are higher compressive strength, lower shutdown power, cumulative design, calmer reception and torque transfer from the engine to other transmission. In this paper are shown the features of plate springs as a part of a pull clutch, the factors affecting the characteristics of plate-springs and the calculations of the forces for a clutch on the supporting straps. The results will show why that plate springs are increasingly used in motor vehicle clutches.


    • Fresh drinking water as the necessary component of freight base of container line

      pg(s) 90-92

      Existence of reliable/safe freight or transportation base is a requirement for establishing maritime transportation company. Therefore, Georgia has to search for internal freight base necessary for container transportation which is highly and permanently demanded on a global market. Pure drinking water represents such product for Georgia.
      According to UN, the world demand on the fresh water is increasing rapidly. The accessibility of it is decreasing day by day on our planet. It’s proved by the macroeconomic researches that Georgia possesses the resources of the world importance in the form of the fresh drinking water.
      The paper presents the methods of the transportation of fresh drinking water, calculation of the potential income received from the export and its role in the development of Georgian economy.

    • Reliability, safety and efficiency – challenges for transport infrastructures

      pg(s) 93-97

      Transport infrastructure brings together conventional groundwork and innovative technologies in order to improve various aspects of transport system management and control. It enables anticipatory maintenance, planning and scheduling, resource management and aims to improve reliability and safety, increased capacity and asset utilization, better energy efficiency and lower emissions, higher customer service levels and increased economic feasibility. Transport infrastructures have long service life and great costs of building, manning, operating and maintaining throughout their life. Innovation and technology shifts proved to be important factors determining great changes in infrastructure potential and even determine its obsolescence. It is regarded as a concern throughout infrastructure’s entire life cycle and reflects changes in expectation regarding performances in functioning, safety and environmental effects.
      Performance and failure are illustrated conceptually and represented in a simplified form considering the evolution of technology, the influence of innovation breeding new generation rail infrastructure, all the way through infrastructure’s service life.
      According to the identified particularities, recommendations are to be made in order to insure a best practice in lifecycle management and transport infrastructure renewal in the context of improved reliability, safety and efficiency.

    • Certain issues to minimize the human factor impact in transportation security

      pg(s) 98-100

      Aviation security as a topical area of scientific research is marked contrast to other application tasks of security sector. The specific nature aims at dealing with research objects that differ in considerable uncertainty of identification and description. In such a case, the requirements for aviation security systems are constantly becoming more complex, and the methodology of scientific research on security issues lags far behind the common trend of civil aviation development.
      In the last few years, the trend to improve aviation security management systems in transportation industry has become a transition from classical schemes of regulatory management to schemes of computer-assisted management using procedures with the challenge of reducing the human factor. In fact, the human factor is not the only criterion for management in such systems. We can identify a number of factors that reduce the effectiveness of security management in the current system, and their impact is not fully investigated. A system analysis of these factors shows that each of them is not only related to the human factor, but the parameters of these factors’ influence on the management efficiency are largely determined by the human component. In this case, the human factor becomes the main criterion for optimal aviation security management. There is a problem of minimizing the negative impact of the human factor on aviation security management procedures. The authors of this work offer and study an original approach to solving this problem.

    • Processes of Ukraine’s integration into the common aviation area

      pg(s) 101-104

      Aviation integration is seen as a process of rapprochement and unification in the air transport industry. Conducting a study of the common aviation area of the European Union. Today there is a common transport policy in the EU. Its goal is to provide market conditions and a competitive basis for airlines. The analysis of competition in the market of air transportation of Ukraine is carried out. The main flights passing through Ukraine are singled out. The shortcomings of Ukrainian airlines in the international market have been identified. It is concluded that the air transport industry in Ukraine is still underdeveloped. Ukraine’s accession to the Free Sky of Europe has advantages. Strategic directions of development of the air transportation market of Ukraine are determined


    • Alternative fuels for public transport vehicles – actual trends

      pg(s) 105-107

      Strategies for sustainable transport, and consequently sustainable mobility, require the use of cleaner vehicles without harmful emissions. The use of alternative fuels contributes to realization of set strategies and different types of alternative fuels are increasingly present in the transport sector. There is great potential in the use of alternative fuels in public transport systems, since this mode of transport plays a very important role in sustainable mobility. The aim is to replace the conventional bus fleets with vehicles with newer and cleaner technologies. Within this paper, alternative types of fuels used in public bus transport will be presented, as well as practical examples of the application of these modes of transport.

    • Initial design of an internal combustion engine for a range extender unit for electric vehicles

      pg(s) 108-111

      The present paper is focusing on a basic research for an initial design of an internal combustion engine for use in a range extender unit for an electric vehicle. The paper introduces a short description of the power train concept as well some interesting points, problems and challenges during the design process of the internal combustion engine. Some of them are connected with a proper selection of the engine configuration (number of the cylinders, their configuration, etc.), a determination of the engine main parameters (bore and stroke) and how they affect the engine operation and performance. Different parametric models are used and some output results are presented.