Resonant Vibration of a Rotor with Magnetic

• Autorzy: Dziedzic K. , Kurnik W.
• Języki publikacji: EN

Abstrakty

EN

The paper is concerned with the dissipative effect of the magnetic hysteresis in transverse dynamics of a rigid rotor supported in hydrodynamic bearings with magnetic actuation. Attention is focused on the influence of magnetic damping induced in the ferromagnetic core of a single magnetic actuator on the stability domain and the resonant behaviour of a rotor under constant gravity load and harmonic excitation. The dynamic relation between the magnetic field and magnetic induction in the core is described in form of a differential equation based on the hypothesis of magneto-rheologic analogy. Nonlinear magnetization curve reflecting magnetic saturation is included.

Słowa kluczowe

EN

resonant vibration; rotor damping; magnetic damping

PL

częstotliwość rezonansowa; tłumienie drgań wirnika; tłumienie magnetyczne

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2007
• Tom: Vol. 31, No. 1
• Strony: 43--52
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Dziedzic K.

autor

Kurnik W.

• Warsaw University of Technology,

Bibliografia

• Bertotti, G., 1998, Hysteresis in Magnetism, Academic Press, San Diego.
• Dziedzic, K., 2005, Dynamics of rotors with active magnetic damping in bearings (original title in Polish: Dynamika wirników z aktywnym tłuimieniem magnetycznym w łożyskach) Ph. D. Thesis, Warsaw Unversity of Technology.
• Dziedzic, K., Kurnik, W., 2002, Stability of a Rotor with Hybrid Magneto-Hydrodynamic Support, Machine Dynamics Problems, 26, No 4, 33-433.
• Kurnik, W., 1994, Magnetic stabilization of a rotor with hydrodynamic bearings, Machine Dynamics Problems, 7, 117-133.
• Kurnik, W., 1995, Active magnetic antiwhirl control of a rigid rotor supported on hydrodynamic bearings, Machine Dynamics Problems, 10, 21-36.
• Muszyńska, A., Wesley, D.F., Bently, D. E., 1987, Rotor active ,,anti-swirl” control, Proceedings of 11-th ASME Conference on Mechanical Vibrations and Noise, Boston, 215-222.
• Newkirk, B.L., Taylor, H.D., 1925, Shaft Whipping due to Oil Action, General Electric Review, 559-568.
• Osinski, Z., (Ed.), 2000, Damping of Vibration, AA Balkema.