Artykuły (WM)

Stały URI dla kolekcjihttp://hdl.handle.net/11652/206

Przeglądaj

Filtry

2007 - 20082

Ustawienia

Autorsearch.filters.applied.operator.equals: search.filters.author.Kozanecki, ZbigniewTematsearch.filters.applied.operator.equals: search.filters.subject.magnetic bearing

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Teraz wyświetlane 1 - 2 z 2
  • Pozycja
    Experimental identification of dynamic parameters for active magnetic bearings.
    (Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2008) Kozanecka, Dorota; Kozanecki, Zbigniew; Lech, Tomasz
    In the paper, an experimental identification procedure of dynamic parameters for active magnetic bearings is presented. In the proposed method, analysis of variable components of displacements of the rotor for an excitation with the rotating vector force of unbalance, is conducted. Proportionality of the bearing magnetic response force to the excitation force in the whole range of rotational frequency, is assumed. It allows for identification of equivalent dynamic coefficients of the bearing. The experimental investigations were carried out on test rigs with the shaft supported in active magnetic bearings.
  • Pozycja
    Application of active magnetic bearings for identification of the force generated in the labirynth seal.
    (Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2007) Kozanecka, Dorota; Kozanecki, Zbigniew; Lech, Tomasz; Kaczmarek, Andrzej
    A magnetic bearing system of a rotating shaft is characterized by a unique feature that consists in the possibility of monitoring static and dynamic loads (reactions) of each bearing under normaI operation of the machine. In the paper, an identification procedure of bearing response forces, which allows for simultaneous measurement of the journal position with respect to the bush and the controI currents that flow in magnetie bearing bush windings, is presented. The proposed procedure ensures effective protection of the rotating shaft supported in active magnetic bearings against too high loads and displacements that can occur in the rotating system. Experimental investigations were carried out on test rigs wit h the shaft supported in active magnetic bearings.