• TRANSPORT TECHNICS. INVESTIGATION OF ELEMENTS. RELIABILITY

    Structure of the Model of Hybrid Electric Vehicle Energy Efficiency

    Trans Motauto World, Vol. 6 (2021), Issue 3, pg(s) 76-79

    The hybrid electric vehicles (HEV) are promising vehicles with low exhaust emissions and increased autonomy of movement including internal combustion engine (ICE) and electric motor (EM) which is powered by the battery (B) . The main advantage of HEV over classic cars is the reduced fuel consumption, especially in urban traffic [1]. This is a prerequisite for good energy efficiency of HEV, which is determined by the fuel consumption and consumption, respectively the regeneration of electricity of HEV. These values depend on many factors such as speed, mileage, acceleration, mass, drag, climatic conditions and more. The modelling of the energy efficiency of HEV is related to the study and structuring of the factors that determine the fuel consumption and electricity consumption and the dependencies between them and their connection and construction in a model. The model of energy efficiency of HEV gives a quantitative assessment of the fuel consumption and the consumption (regeneration) of electricity of HEV, according to the main influencing parameters. In addition, the HEV energy efficiency model indicates the influencing parameters and their analytical or experimental determination. The correct modelling of energy efficiency is related to the correct determination of energy parameters and their logical connection in a selected model. The optimal model of energy efficiency of HEV is built from these factors that can be directly measured or calculated, which increases the accuracy and reliability of the results. This article discusses building an energy efficiency model of a hybrid electric vehicle.

  • NATIONAL AND INTERNATIONAL SECURITY

    The new old challenges to NATO in the Balkans

    Security & Future, Vol. 5 (2021), Issue 1, pg(s) 21-23

    NATO is facing an array of challenges in the Balkans – both ‘old’ and conventional, and ‘new’ and asymmetric. This paper seeks to offer an overview and provide an analysis of the risks emanating from Russia’s strategic interests in the peninsula and possible complications as an example of ‘traditional’ threat. Additionally, the author will strive to a nalyze them in the context of ‘modern’ security challenges in the region, such as the risks stemming from the migration from the Middle East and North Africa, and the challenges, particularly in the Western Balkans, of radicalization and returning foreign fighters. NATO’s role in the region is particularly important as no single country in the region has the capabilities to address such transnational threats and challenges unilatera lly. The hypothesis is that the Alliance needs to significantly enhance its soft power capabilities, intensify cooperation between stakeholders in the region, and adapt to more contemporary and asymmetric threats.

  • TECHNOLOGICAL BASIS OF “INDUSTRY 4.0”

    GENETIC MODELING AND STRUCTURAL SYNTHESIS OF CNC MULTI-SPINDLE AUTOMATIC MACHINES OF NEW GENERATION

    Industry 4.0, Vol. 3 (2018), Issue 3, pg(s) 115-119

    Global trends on the key technical and economic indicators in development of multiple-spindle automatic machines (MSAMs) with various control systems and the hybrid MSAMs with consecutive reduction and complete elimination of mechanical kinematic chains, developed with the use of electromechanical structures (EM-structures) in I. Sikorsky KPI, are given in this paper. Genetic synthesis of MSAM EM-structures by the defined search function using genetic synthesis models and genetic operators of crossing, replication and a mutation have been made here.