Determination of parameters for a design of the stable electro-dynamic passive magnetic support of a high-speed flexible rotor

• Autorzy: Szolc T. , Falkowski F. , Henzel M. , Kurnyta-Mazurek P.

Identyfikatory

DOI

10.24425/bpas.2018.125719

• Języki publikacji: EN

Abstrakty

EN

Electro-dynamic passive magnetic bearings are now viewed as a feasible option when looking for support for high-speed rotors. Nevertheless, because of the skew-symmetrical visco-elastic properties of such bearings, they are prone to operational instability. In order to avoid this, the paper proposes the addition of external damping into the newly designed vibrating laboratory rotor-shaft system. This may be achieved by means of using simple passive dampers that would be found among the components of the electro-dynamic bearing housings along with magnetic dampers, which satisfy the operational principles of active magnetic bearings. Theoretical investigations are going to be conducted by means of a structural computer model of the rotor-shaft under construction, which will take into consideration its actual dimensions and material properties. The additional damping magnitudes required to stabilize the most sensitive lateral eigenmodes of the object under consideration have been determined by means of the Routh-Hurwitz stability criterion.

Słowa kluczowe

EN

rotor dynamics; electrodynamic passive magnetic bearings; active magnetic damper; stability analysis; rotor- shaft system

PL

dynamika rotora; wirnik; amortyzator magnetyczny; analiza stabilności; pasywne łożysko magnetyczne

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2019
• Tom: Vol. 67, nr 1
• Strony: 91--105
• Opis fizyczny: Bibliogr. 20 poz., wykr., rys., tab.

Twórcy

autor

Szolc T.

• Institute of Fundamental Technological Research of the Polish Academy of Sciences, Warsaw, Poland

autor

Falkowski F.

• Institute of Fundamental Technological Research of the Polish Academy of Sciences, Warsaw, Poland

autor

Henzel M.

• Faculty of Mechatronics and Aerospace of the Military University of Technology, Warsaw, Poland

autor

Kurnyta-Mazurek P.

• Faculty of Mechatronics and Aerospace of the Military University of Technology, Warsaw, Poland

Bibliografia

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Uwagi

EN

The investigations were supported by the Polish National Centre for Research and Development, Research Project PBS1/B6/7/2012.

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).