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    Wyświetlanie 1-8 z 8
    Tytuł:
    New crane bumper design with an energy absorption device system
    Autorzy:
    Haniszewski, Tomasz
    Margielewicz, Jerzy
    Gąska, Damian
    Opasiak, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2203900.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    simulation
    Matlab
    crane
    dynamics
    spring pendulum
    symulacja
    dźwig
    dynamika
    wahadło sprężynowe
    Opis:
    This article presents research carried out using physical data from the experimental construction of an overhead crane. This article aims to determine the dynamic behaviour of the cart-pendulum system when the hoisting mechanism hits the new bumper design at the end of the girder support structure with selected speed and bumper material to the length of the wire rope. This research shows the influence of the horizontal speed of the hoisting mechanism on the bumper force during a collision with a standard buffer and its modifications. The presented model can be the basis for modelling more complex cases, and its assumed role (i.e. the ability to determine the angle of deflection of the rope during an impact) has been confirmed and is possible to use in a specific case of an overhead crane on an industrial scale. Preliminary analysis of the construction of the bumper considered reveals its positive features, aiming, among other goals, to reduce the acceleration and force acting on the crane cart in emergency situations.
    Źródło:
    Transport Problems; 2022, 17, 3; 5--16
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Strength analysis of experimental crane, using proliftor 250 rope winch as an excitation of a girder
    Autorzy:
    Haniszewski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/374181.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    simulation
    crane
    dynamics
    FE analysis
    symulacja
    dźwig
    dynamika
    analiza elementów skończonych
    Opis:
    The article presents the research carried out on the experimental construction of a crane, where a hoist with an AC motor without a motor control system was used as an excitation signal for the girder. The purpose of the described research is to determine the relationship between the values of the dynamic surplus factor when lifting the load with the loose rope in the initial phase of lifting and the distance of the hoist from the supporting structure. The data was obtained based on the force tests in a steel wire rope and subsequent determination of the values of stresses and deflections accompanying the selected test cases for different positions of the vibration inductor using the FE method.
    Źródło:
    Transport Problems; 2018, 13, 3; 131-142
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary modelling studies of an experimental test stand of a crane, for investigation of its dynamic phenomena of lifting and driving mechanism
    Autorzy:
    Haniszewski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/375331.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    crane
    dynamics
    modeling
    simulation
    vibration
    rope
    dźwignica
    dynamika
    modelowanie
    symulacja
    drgania
    lina
    Opis:
    In the article, the problem of designing and preliminary tests on experimental test bench was taken into account. Proposed test stand allows us to carry out a series of studies concerning the dynamic phenomena accompanying the lifting of the load. Presented test bench allows, among other things, measurements of data such as the acceleration of selected points of the girder and also of cargo, displacement of cargo and centre of the girder, along with measurement of stress in selected locations and the coefficient of dynamic surplus. The electronic part of the test bench was made using the PHIDGET and the Arduino platform. Owing to the full miniaturization and implementation of control and measurement systems from the application level, test stand allows testing new mechanisms for implementing control algorithms and studying the influence of control parameters on the values of dynamic coefficients characterizing the selected dynamic mechanisms. Such an approach provides the possibility, among other things, of full control of the systems using a computer, and thus an immediate analysis of the data, which is extremely important in process of verification in the phenomenological model creation of the analyzed crane mechanisms. The proposed approach enables the development of existing ones and testing new design solutions in scale (experimental) and pure software solutions (analytical).
    Źródło:
    Transport Problems; 2017, T. 12, z. spec.; 115-126
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of trucks braking dynamics with ABS
    Modelovanie tormoznoj dinamiki gryzovogo avtomobila s ABS
    Autorzy:
    Dyachuk, M
    Powiązania:
    https://bibliotekanauki.pl/articles/374214.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    vehicle dynamics
    ABS simulation
    ABS logical block
    dynamika pojazdu
    symulacja ABS
    ABS bloku logicznego
    Opis:
    In the article some questions of ABS simulation on the basis of plane vehicle's dynamics and automatic modeling are considered. The author's algorithm of ABS modulators control is presented.
    В статье рассматриваются вопросы имитационного моделирования системы АБС на основе автоматического моделирования плоской динамики транспортных средств. Представлен авторский алгоритм управления модуляторами АБС.
    Źródło:
    Transport Problems; 2014, 9, 3; 21-30
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of primary suspension stiffness of 2-axle bogie of MKIII passenger car on its dynamical behaviour
    Autorzy:
    Zboiński, K.
    Golofit-Stawińska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/961421.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    numerical simulation
    non-linear dynamics
    self-excited vibration
    symulacja numeryczna
    dynamika nieliniowa
    samowzbudne wibracje
    Opis:
    This article presents results of the study on the impact of stiffness in vehicle primary suspension for lateral direction kzy and longitudinal direction kzx. The study was carried out for 2-axle bogie of MKIII passenger car. The problem was solved by numerical tests performed with the simulation software for dynamics of vehicle-track system. Performed study consisted in varying both stiffness types through change of their values from 0.001 to 1000 times as compared to nominal value.
    Źródło:
    Transport Problems; 2018, 13, 1; 135-146
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parallel computations and co-simulation in universal mechanism software. Part 2: Examples
    Autorzy:
    Pogorelov, Dmitry
    Rodikov, Alexander
    Kovalev, Roman
    Powiązania:
    https://bibliotekanauki.pl/articles/374377.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    multibody dynamics
    parallel computations
    co-simulation
    railway research
    dynamika układów wieloczłonowych
    obliczenia równoległe
    symulacja współbieżna
    badanie kolejowe
    Opis:
    The second part of the paper continues a discussion on the topic of paralel computations in railway dynamics. The algorithms described in the first part of the paper are applied to parallel simulation on computers with multicore processors of six different models of rail vehicles and trains with the number of degrees of freedom from about one hundred to more than 20 thousands. A considerable simulation speedup is reported. In addition, an example of evaluation of wheel profile wear on multicore processors and comparison of different approaches to multi-variant computations are considered.
    Źródło:
    Transport Problems; 2019, 14, 4; 31-38
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of dynamics of a metro vehicle model with differential wheelsets
    Autorzy:
    Melnik, R.
    Sowiński, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/374579.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    rail vehicle
    differential gear
    running gear
    dynamics
    wear
    simulation
    pojazd szynowy
    mechanizm różnicowy
    podwozie
    dynamika
    zużycie
    symulacja
    Opis:
    The operating conditions of light rail vehicles (trams, metro vehicles) are predominantly different compared with those of passenger or freight trains. The increased number of low-radii curves has a negative effect on wheel–rail interaction. The general design of light rail vehicle running gear is inherited from passenger trains and adapted to different loads. However, conventional solutions of a running gear may not provide smooth low-radius curve negotiation in all circumstances. In addition, a two-point contact is likely to occur, which, in turn, leads to accelerated wear of not only the wheels’ tread but also their flanges. One of the proposals to deal with problems associated with the wheel–rail interaction in tight curves is implementing an automotive solution: a differential gear. The aim of the study is to investigate the dynamic behavior of a metro vehicle model equipped with differentials at each wheelset. The differentials were tested in two main variants: open and with internal friction torque. Internal friction torque value was set, consecutively, up to 2000 Nm. The results have shown that on tight curves a differential may improve rail vehicle wheel–rail interaction.
    Źródło:
    Transport Problems; 2017, 12, 3; 93-102
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parallel computations and co-simulation in universal mechanism software. Part 1: Algorithms and implementation
    Autorzy:
    Pogorelov, Dmitry
    Rodikov, Alexander
    Kovalev, Roman
    Powiązania:
    https://bibliotekanauki.pl/articles/375228.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    multibody dynamics
    parallel computations
    co-simulation
    railway research
    dynamika układów wieloczłonowych
    obliczenia równoległe
    symulacja współbieżna
    badanie kolejowe
    Opis:
    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 paralel computations in Universal Mechanism software in three different areas: simulation of rail vehicle and train dynamics, evaluation of wheel profile wear and multi-variant computations. The use of clusters for parallel running of multi-variant computations is illustrated. Co-simulation based on the interface between Universal Mechanism and Matlab/Simulink and other software tools is discussed.
    Źródło:
    Transport Problems; 2019, 14, 3; 163-175
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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