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    Wyświetlanie 1-12 z 12
    Tytuł:
    Maintenance system of semi-trailer and risk priority number
    Autorzy:
    Gallikova, Jana
    Barta, Dalibor
    Caban, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/263110.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    maintenance
    FMEA
    risk priority number
    reliability
    Opis:
    The new maintenance system of semi-trailer combination as a most used road freight transport means is the subject of interest in this article. The real experiences from practice and creation of the FMEA analysis of the system using software support are the basis of wear and damage analysis of air brake system components used on the semi-trailer combination. The desire to improve market position of the company, customer satisfaction, but also the product specifications, government regulatory requirements, agency recommendations, and legal implications are the grounds for continuous improvement of the product quality, reliability and safety. These reasons push the product manufacturers to perform risk analyses, which helps them identify and minimize system failures during the life cycle of product. One of the risk analysis techniques recommended by international standards to identify possible failure causes is the FMEA methodology. It helps to locate the failures and reduce their consequences, so that the intended function of the machine is fulfilled. In this paper was presented the wear and damage analysis of individual components of air brake system and creating of the FMECA analysis for semi-trailer combination. Base on them, new methods to detect failures of components of air systems, preventive measures and set up of a new planned preventive maintenance system for air brakes was designed. The cost of the proposed maintenance system is 2.2 times higher than the cost of the current maintenance system, but it minimizes the failures and their consequences (traffic accidents).
    Źródło:
    Archiwum Motoryzacji; 2019, 86, 4; 101-109
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Proposal of a Mechanism for Car Seat Movement
    Autorzy:
    Pavelčík, Vladimír
    Barta, Dalibor
    Sapieta, Milan
    Powiązania:
    https://bibliotekanauki.pl/articles/102309.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    car seat
    height adjustment
    design of kinematics
    schematic design
    fotelik samochodowy
    regulacja wysokości
    projekt kinematyki
    projekt schematyczny
    Opis:
    This article is focused on the height adjustment of a front car seat. The goal was to design seat movement in pure vertical direction. The article begins with a theoretical introduction, in which the functions and parts of car seats were described. The next part contains possible schematic designs of a mechanism, as well as the reasons for possible changes of the contemporary mechanisms. Afterwards, some functional parameters of the chosen schematically-designed mechanism were calculated, the results could then be used for further calculations needed for the creation of a three-dimensional model of the mechanism. The article deals mainly with the theoretical principles, and there are many further possibilities for development within the subject.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 1; 50-57
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research of composite materials used in the construction of vehicle bodywork
    Autorzy:
    Gardyński, Leszek
    Caban, Jacek
    Barta, Dalibor
    Powiązania:
    https://bibliotekanauki.pl/articles/102854.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    vehicle bodywork
    composite
    strength
    nadwozie pojazdu
    kompozyt
    siła
    Opis:
    Contemporary vehicles have an increasing number of bodywork elements made of composites. Their advantages are undoubtedly weight reduction and increased corrosion resistance. On the other hand, accidental repairs are becoming difficult, however, in case of minor deformation there is often no permanent deformation. The authors researched the issue of the strength of composite bodyworks varies over time and in case of minor accidental damage, qualifying the element for further use. The paper presents the results of research on the structure and strength of composite body elements of selected vehicles. Undamaged components and plating parts that were damaged in collisions were examined.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 3; 181-187
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    FMECA analysis of thermal deburring machine EXTRUDE HONE TEM P-350
    Autorzy:
    Galliková, Jana
    Grenčík, Juraj
    Barta, Dalibor
    Barlok, Matej
    Powiązania:
    https://bibliotekanauki.pl/articles/1819184.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    FMECA
    thermal deburring process
    failure mode analysis
    maintenance systems
    preventive and detection actions
    Opis:
    This study investigates FMECA analysis and its potential use in improving the reliability and maintenance of the thermal deburring machine in a manufacturing company located in Slovakia. In the beginning, an overview of the FMEA/FMECA methods and their utilization for increased reliability are discussed. As a practical solution, the deburring machine EXTRUDE HONE TEM P-350 was chosen. Functions of its systems and components, thermal deburring process, its characteristics and in practice application are described. Maintenance policy in the company and the current state of maintenance of the machine are also presented. In addition, the study includes failure analysis which evaluates the riskiest systems of the machine. One element, hydraulic unit, is a subject for the FMECA analysis which envisions the assessment of the current failure modes using risk priority number (RPN) and proposals of prevention and detection action reducing the level of RPN. The final section focuses on influencing and improving maintenance and summarizing the potential benefits of FMECA Analysis for company and machine operation.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2020, 63 (135); 9-16
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    FEM analysis of main parts of a manipulator for mountig a compressor to a car equipped with a pneumatic suspension system
    Autorzy:
    Blatnický, Miroslav
    Dižo, Ján
    Barta, Dalibor
    Droździel, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/328780.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    engineering devices
    FEM simulation
    pneumatic mechanism
    vehicle
    pojazd
    mechanizm pneumatyczny
    symulacje MES
    Opis:
    The article deals with a FEM analysis of main parts of an engineering design of a pneumatically controlled manipulator, which will serve for mounting a compressor to a PO536 car chassis. This car chassis belongs to SUV cars and it is equipped with a pneumatic suspension system. It is the chassis of a Porsche Cayenne car produced in the Slovak Republic. The designed manipulator will be located on the assembly line of this vehicle. Except of FEM analyses of designed important parts of the manipulator, which are necessary for verification of safety of the design in order to obtain distribution of stresses and deformations in a structure, the it contains also the design of a pneumatic circuit of the manipulator together with pneumatic logic and it individual components. Based on three-dimensional model, there will be possible to generate drawings of the manipulator for manufacturing of the device and its application to the real operation.
    Źródło:
    Diagnostyka; 2020, 21, 2; 87-94
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Engineering design of a manipulator for mounting an air suspension compressor to a car chassis
    Autorzy:
    Blatnický, Miroslav
    Dižo, Jan
    Barta, Dalibor
    Rybicka, Iwona
    Powiązania:
    https://bibliotekanauki.pl/articles/2091144.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    compressor
    air suspension system
    chassis
    engineering design
    manipulation
    kompresor
    system zawieszenia pneumatycznego
    podwozie
    projekt inżynieryjny
    manipulacja
    Opis:
    This article is aimed at the engineering design of a manipulator, which is pneumatically controlled. It will serve for mounting the compressor of an air suspension system to the chassis of a sport utility vehicle (SUV) produced in the Slovak Republic. The manipulator will be used on an assembly line, on which SUVs are assembled. The designed device belongs to a group of dedicated devices, which are not produced within a serial production, however, it is the only functional prototype. Together with the manipulator structure, a pneumatic part of the assembly line including individual components, schemes and the pneumatic system will be proposed. Within the project process, all necessary customer demands, technical and safety standards have to be met. Moreover, ergonomic requirements for handling the device and other acts on the workplace have to be considered.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 109; 5--16
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design of a metro door system and determination of main loads
    Autorzy:
    Blatnický, Miroslav
    Dižo, Ján
    Barta, Dalibor
    Droździel, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/197054.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    constructional design
    door
    metro
    parametric model
    calculation
    projekt konstrukcyjny
    drzwi
    model parametryczny
    obliczenie
    Opis:
    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.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2019, 105; 49-64
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of simulation computations in investigation of vibration properties of a tricycle
    Autorzy:
    Dižo, Ján
    Blatnický, Miroslav
    Barta, Dalibor
    Melnik, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/328688.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    tricycle
    multibody model
    comfort for passengers
    driving safety
    pojazd trójkołowy
    bezpieczeństwo jazdy
    komfort jazdy
    Opis:
    Vibration properties of road vehicles can be in principles evaluated using two ways, i. e. by simulation computations using a virtual model of a vehicle and by measuring on a real vehicle prototype, whereby, their dynamical properties are usually assessed in compliance with to two criterions, namely from the ride comfort for passengers point of view and from the driving safety point of view. The topic of this article is focused on evaluation of passenger’s ride comfort of a tricycle. In this regard, vertical movements of a vehicle are most important. In respect of ride comfort for passengers, accelerations in vertical direction are critical. Accelerations are usually detected on a seat. In regard of driving safety, value of the contact force between a wheel and a road are decisive. In our research we present process of investigation of level of ride comfort for passengers and level of driving safety of a tricycle based on simulation computations using the tricycle multibody model.
    Źródło:
    Diagnostyka; 2019, 20, 3; 97-104
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New teoretical cycle for active combustion chamber engine
    Autorzy:
    Głogowski, Michal Piotr
    Kubiak, Przemysław
    Šarić, Željko
    Barta, Dalibor
    Powiązania:
    https://bibliotekanauki.pl/articles/263752.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    theoretical cycle
    combustion engine
    compression ratio
    additional volume
    active combustion chamber
    Opis:
    This paper presents calculations of the theoretical cycle of engines with an active combustion chamber depending on energy delivery and dissipation. In the case of ACC engines, a different calculation approach is required to account for the possibility of additional volume change, independent of the piston-crank system. The introduction presents a schematic diagram of volume change, accomplished by two independent piston-crank systems and an active combustion chamber, as proposed by the authors. Moreover, the diagram, which is the basis for analysis in this paper, illustrates characteristic points of the cycle. In existing theoretical cycles of combustion, this issue does not present any difficulties, since the solution is exact and based on known equations. In the case of theoretical ACC engines, however, the situation is different, since this engine can perform not only in typical cycles, but also in new ones. To explain the challenges of these new cycles, authors present a few of the most probable calculation variants, taking into account the new kinematic capabilities of ACC engines. Each comment justifying the choice of a certain calculation variant is illustrated with a theoretical cycle figure and closest approximation of induced pressure course of the ACC engine. At the same time, however, the authors show that this problem can have many interpretations. It has been concluded that the solution depends on the assumptions made about the active combustion chamber, namely its principle of operation.
    Źródło:
    Archiwum Motoryzacji; 2019, 83, 1; 23-42
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Possibility of increasing vehicle energy balance using coasting
    Autorzy:
    Barta, Dalibor
    Mruzek, Martin
    Labuda, Robert
    Skrucany, Tomas
    Gardynski, Leszek
    Powiązania:
    https://bibliotekanauki.pl/articles/102696.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    coasting
    coast down
    driving style
    wybieg
    styl jazdy
    zużycie paliwa
    Opis:
    The paper deals with coasting as an option of using the vehicle kinetic energy. It highlights the need for changes in the legislation in conjunction with the use of new trends in the management of motor vehicles with regard to safety. The article describes the use of the vehicle is coasting as a part of the driving mode, which leads to the reduction in fuel consumption and in exhaust emission. This solution takes into account all the running resistances and creates a basis for designing appropriate control strategies. These options were analyzed with respect to various drive strategies and kinds of transport.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 1; 228-235
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improved method of processing the output parameters of the diesel locomotive engine for more efficient maintenance
    Autorzy:
    Zvolenský, Peter
    Barta, Dalibor
    Grenčík, Juraj
    Droździel, Pawel
    Kašiar, Ľubomír
    Powiązania:
    https://bibliotekanauki.pl/articles/1841741.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    maintenance
    locomotive
    diesel engine
    control parameters
    Opis:
    Modernization of aged rolling stock is one of the possibilities to adapt it to the current requirements for better environmental friendliness and economy of railway transport. However, some vehicle upgrades lead to new failures that were not observed in the original vehicles. The cause is the so-called “hybrid design”, built on a combination of original and selected new components. The aim of the work was to improve the situation with frequent failures and unavailability that occur on the modernized locomotive where a new diesel engine and new electronic control system was installed. Within the work, a simplified methodology for evaluating the outputs of diagnostic equipment was developped based on and applied to specific locomotive type and its diesel engine. The methodology resulted in a significant reduction of the time for assessing the condition of the vehicle’s diesel engine and more effective maintenance. The paper also presents other possibilities in the analysis of big data in the maintenance of rolling stock e.g. using fuzzy logic.
    Źródło:
    Eksploatacja i Niezawodność; 2021, 23, 2; 315-323
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of possibilities to improve environmental operating parameters of modern compression – ignition engines
    Autorzy:
    Osipowicz, Tomasz
    Abramek, Karol Franciszek
    Barta, Dalibor
    Droździel, Paweł
    Lisowski, Maciej
    Powiązania:
    https://bibliotekanauki.pl/articles/957973.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    fuel injector
    compression-ignition engine
    diesel fuel
    dehydrogenation of hydrocarbons
    wtrysk paliwa
    silnik wysokoprężny
    olej napędowy
    odwodornienie węglowodorów
    Opis:
    The aim of this study was to analyse the possibilities of improving the ecological parameters of compression – ignition CI engines. During the analysis of exhaust gas, attention was mainly paid to the emission of nitrogen oxides and carbon black soot. A method was proposed to reduce the above chemical elements in CI – engine exhaust fumes by using the annular channels on the non-working part of the fuel injector needle and applying a platinum catalyst on them. The task of these annular channels is to mix and agitate the fuel before injection to the combustion chamber and to enlarge the contact surface area of catalyst. The task of catalytic coating is to initiate the reaction of dehydrogenation of paraffinic hydrocarbons to olefinic ones with a free hydrogen molecule. Hydrogen, owing to its properties, can shorten the period of delay of spontaneous ignition of combustible mixture in the engine combustion chamber, which affects the entire combustion process and improves the ecological parameters of a CI engine.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 2; 206-213
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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