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Wyszukujesz frazę "amplitude of vibrations" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Nonlinear component of free vibration frequency of a partially tensioned system with consideration of rotational stiffness of support
    Autorzy:
    Uzny, Sebastian
    Osadnik, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/122407.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    slender nonlinear systems
    amplitude of vibrations
    Euler’s load
    układ smukły
    amplituda wibracji
    obciążenie Eulera
    Opis:
    The nonlinear vibrations of a slender system subjected to Euler’s load which is partially tensioned is discussed in this paper. The longitudinal displacement and rotation on both of the system ends are limited by the discrete elements in the form of translational and rotational springs. The results of numerical simulations concern the first vibration frequency (linear and non-linear components) in relation to the location and magnitude of external load application and different rotational spring stiffness. This nonlinear system is based on the screw drive used in the newly designed vertical platform lifts.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2019, 18, 3; 89-96
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The acoustic power radiated by a circular membrane excited for vibration both by means of the edge and by external surface load
    Autorzy:
    Szemela, K.
    Rdzanek, W. P.
    Rdzanek, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/176879.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    acoustic radiation power
    vibrations of a spherical membrane
    excitation produced by edge and surface loads
    amplitude-phase effects
    Opis:
    In this paper the acoustic power of the circular membrane, excited both by the edge and external exciting forces uniformly distributed over the whole surface, is examined. Some different amplitudes of exciting factors and some differences between the phases of excitations were considered. It has been assumed that the source of a sound is located in a flat, rigid and infinite baffle and is sourrounded by a lossless and homogeneous fluid medium. The vibrations are axisymmetric and time-harmonic. Employing the Cauchy's theorem of residues and asymptotic formulae for the Bessel functions, the asymptotes for active and reactive power consisting of elementary functions are obtained. The acoustic power radiated by the membrane was shown graphically in terms of the parameters describing both kinds of excitations.
    Źródło:
    Archives of Acoustics; 2005, 30, 1; 109-119
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mathematical model and method of determination of amplitude-frequency characteristics of corrugated cylindrical shells for geometrically nonlinear vibrations
    Autorzy:
    Marchuk, Mykhailo
    Goriachko, Taras
    Kindratskyy, Bohdan
    Pakosh, Vira
    Powiązania:
    https://bibliotekanauki.pl/articles/2146612.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Poznańska. Instytut Mechaniki Stosowanej
    Tematy:
    corrugated shell
    geometrically nonlinear vibrations
    mathematical model
    generalized method of perturbations
    amplitude-frequency characteristics
    powłoka falista
    drgania geometrycznie nieliniowe
    model matematyczny
    uogólniona metoda perturbacji
    charakterystyka amplitudowo-częstotliwościowa
    Opis:
    On the basis of spatial geometrically nonlinear theory of elasticity by using quadratic approximations for components of the vector of displacements along the normal coordinate to the median surface is developed a new mathematical model of nonlinear dynamics of cylindrical shells with corrugated configuration for median surface. The perturbation method for the solution of systems of nonlinear differential equations for problems of determination of amplitude-frequency characteristics is generalized. In a combination of finite element and generalized perturbations methods, a new methodology for solving problems of free geometrically nonlinear vibrations of shells with complex guide geometry was developed and verified. With its help the influence of geometrical parameters of corrugating at circular coordinate on the main frequency of the elongated cylindrical panel is investigated.
    Źródło:
    Vibrations in Physical Systems; 2020, 31, 3; art. no. 2020316
    0860-6897
    Pojawia się w:
    Vibrations in Physical Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Free vibrations of the partially tensioned geometrically non-linear system subjected to Euler’s load
    Autorzy:
    Uzny, S.
    Sokół, K.
    Osadnik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/127651.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Poznańska. Instytut Mechaniki Stosowanej
    Tematy:
    column
    Bernoulli-Euler's theory
    free vibration frequency
    nonlinear system
    characteristic curves
    amplitude of vibration
    nonlinear component of free vibrations frequency
    kolumna
    teoria Eulera-Bernoulliego
    częstotliwość drgań własnych
    układ nieliniowy
    krzywe charakterystyczne
    amplituda drgań
    nieliniowa składowa częstości drgań własnych
    Opis:
    In this study the fixed-fixed column subjected to axial Euler’s load has been investigated. The load is placed between the fixed ends of the structure and its location can be changed along column’s length. The boundary problem of free vibrations of the mentioned system has been formulated on the basis of Bernoulli – Euler theory and taking into account non-linear axial deformation relationship. Due to non-linear expressions the solution of the problem was done with small parameter method. In the paper the change of the first vibration frequency in relation to location and magnitude of the loading force was obtained. The relationship between natural vibration frequency and the amplitude is also discussed.
    Źródło:
    Vibrations in Physical Systems; 2016, 27; 399-406
    0860-6897
    Pojawia się w:
    Vibrations in Physical Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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