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Wyszukujesz frazę "flexible rotor" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Rationale for mu-synthesis control of flexible rotor-magnetic bearing systems
Autorzy:
Sawicki, J. T.
Powiązania:
https://bibliotekanauki.pl/articles/387247.pdf
Data publikacji:
2008
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
sterowanie odporne
niepewność pomiaru
robust control
flexible rotor
mu-synthesis
uncertainties
Opis:
The emergence of sophisticated formal control synthesis tools provokes important questions for any prospective user: why learn to use these new tools, what will they offer me? In synthesis of magnetic bearing controllers, it turns out that the range of stabilizing controllers is often quite narrow so that the difference between a poor controller and an “optimal” one may be small. Hence, the product of formal control synthesis tools often looks and performs much like what a reasonably clever control engineer would produce by hand. This paper demonstrates that the real value of these tools lies in a) generation of a performance benchmark which can be used to firmly establish the best performance relative to a specification and b) change of design parameter space to one which is relatively easy to maintain and represents a durable investment from an engineering process view.
Źródło:
Acta Mechanica et Automatica; 2008, 2, 2; 67-74
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robust control and modal analysis of flexible rotor magnetic bearings system
Autorzy:
Mystkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/229827.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
active magnetic bearings (AMB)
uncertainty design
flexible rotor model
bending modes
synthesis control
rotor vibrations control
Źródło:
Archives of Control Sciences; 2010, 20, 2; 151-163
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The visualization of shaft vibration using the algorithm of phase-amplitude data interpolation
Autorzy:
Piątkowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/123025.pdf
Data publikacji:
2016
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
machine diagnostics
vibration condition monitoring
data interpolation
flexible rotor
diagnostyka maszyn
interpolacja danych
wirnik elastyczny
Opis:
In many cases of observations of phenomena and physical processes we use data measured in multidimensional spaces. However, in practice, for the economic or technical reasons, we cannot obtain equally numerous data sets for all dimensions. In this case we can say that we are trying to assess or classify this process by using a few parts of its projection. For processing and computing of an input data a different solutions of interpolation and/or approximation are often used. But data, which have phase-amplitude nature, should be treated in a specific way. The lack of proper interpretation of phase shifts in many cases can result in obtaining the significant distortions of an analyzed process image. In this paper the algorithm of phase-amplitude interpolation is presented. This algorithm has been used for creating the contours charts, as projections of rotating shaft vibrations, in transient operating conditions of the machine.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2016, 15, 1; 137-148
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model-based initial residual unbalance identification for rotating machines in one and two planes using an iterative inverse approach
Autorzy:
Bastakoti, Satish
Choudhury, Tuhin
Viitala, Risto
Kurvinen, Emil
Sopanen, Jussi
Powiązania:
https://bibliotekanauki.pl/articles/2090689.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
flexible rotor
inverse approach
onsite-balancing
residual unbalance
single plane
double plane
wirnik elastyczny
metoda odwrotna
płaszczyzna pojedyńcza
płaszczyzna podwójna
Opis:
To achieve acceptable dynamical behavior for large rotating machines operating at subcritical speeds, the balancing quality check at the planned service speed in the installation location is often demanded for machines such as turbo-generators or high-speed machines. While most studies investigate the balancing quality at critical speeds, only a few studies have investigated this aspect using numerical methods at operational speed. This study proposes a novel, model-based method for inversely estimating initial residual unbalance in one and two planes after initial grade balancing for large flexible rotors operating at the service speeds. The method utilizes vibration measurements from two planes in any single direction, combined with a finite element model of the rotor to inversely determine the residual unbalance in one and two planes. This method can be practically used to determine the initial and residual unbalance after the balancing process, and further it can be used for condition-based monitoring of the unbalance state of the rotor.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 6; e139790, 1--12
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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