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Wyszukujesz frazę "dynamic stability" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    The Asymptotical Stability of a Dynamic System With Structural Damping
    Autorzy:
    Hou, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/908219.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    matematyka
    dynamic systems
    evolution equation
    asymptotic stability
    Opis:
    A dynamic system with structural damping described by partial differential equations is investigated. The system is first converted to an abstract evolution equation in an appropriate Hilbert space, and the spectral and semigroup properties of the system operator are discussed. Finally, the well-posedness and the asymptotical stability of the system are obtained by means of a semigroup of linear operators.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2003, 13, 2; 131-138
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Static and dynamics of a pump impeller with a balancing device. Part II: dynamic analysis
    Autorzy:
    Martsinkovsky, V. A.
    Zhulyov, A.
    Kundera, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/955212.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    pompa wirowa
    wirnik
    analiza dynamiczna
    dynamic analysis
    pump impeller
    balance device
    stability condition
    Opis:
    This paper presents the theoretical study of the system comprising an impeller and a balancing device. It deals with the dynamic analysis of the system, i.e., the axial vibrations of the impeller, and the system stability. The dynamic analysis took into account linearized hydrodynamic forces and moments generated in the longitudinal clearances of the seals of the impeller. The theoretical analysis was supplemented with a numerical example with characteristics determined for a real single-stage centrifugal pump.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2014, 19, 3; 621-631
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A nonlinear dynamic inversion-based neurocontroller for unmanned combat aerial vehicles during aerial refuelling
    Autorzy:
    Pedro, J. O.
    Panday, A.
    Dala, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/330328.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    trim analysis
    stability analysis
    neurocontroller
    UCAV
    aerial refuelling
    nonlinear dynamic inversion
    analiza stateczności
    inwersja dynamiczna
    Opis:
    The paper presents the development of modelling and control strategies for a six-degree-of-freedom, unmanned combat aerial vehicle with the inclusion of the centre of gravity position travel during the straight-leg part of an in-flight refuelling manoeuvre. The centre of gravity position travel is found to have a parabolic variation with an increasing mass of aircraft. A nonlinear dynamic inversion-based neurocontroller is designed for the process under investigation. Three radial basis function neural networks are exploited in order to invert the dynamics of the system, one for each control channel. Modal and time-domain analysis results show that the dynamic properties of the aircraft are strongly influenced during aerial refuelling. The effectiveness of the proposed control law is demonstrated through the use of simulation results for an F-16 aircraft. The longitudinal neurocontroller provided interesting results, and performed better than a baseline nonlinear dynamic inversion controller without neural network. On the other hand, the lateral-directional nonlinear dynamic inversion-based neurocontroller did not perform well as the longitudinal controller. It was concluded that the nonlinear dynamic inversion-based neurocontroller could be applied to control an unmanned combat aerial vehicle during aerial refuelling.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2013, 23, 1; 75-90
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of Pendolino high-speed rail on the structure of buildings located in the proximity of railway tracks
    Autorzy:
    Grębowski, K.
    Ulman, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/264853.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    pociąg dużych prędkości
    analiza dynamiczna
    tory kolejowe
    uszkodzenie konstrukcji
    high-speed trains
    FEM
    dynamic analysis
    railway tracks subgrade stability
    structural damage
    Opis:
    The following research focuses on the dynamic analysis of impact of the high-speed train induced vibrations on the structures located near railway tracks. The office complex chosen as the subject of calculations is located in the northern part of Poland, in Gdańsk, in the proximity of Pendolino, the high speed train route. The high speed trains are the response for the growing needs for a more efficient railway system. However, with a higher speed of the train, the railway induced vibrations might cause more harmful resonance in the structures of the nearby buildings. The damage severity depends on many factors such as the duration of said resonance and the presence of additional loads. The studies and analyses helped to determinate the method of evaluating the impact of railway induced vibrations on any building structure. The dynamic analysis presented in the research is an example of a method which allows an effective calculation of the impact of vibrations via SOFISTIK program.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 1; 231-238
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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