Research on stability and sensitivity of the rotating machines with overhung rotors to lateral vibrations

• Autorzy: Szolc Tomasz , Konowrocki Robert

Identyfikatory

DOI

10.24425/bpasts.2021.137987

• Języki publikacji: EN

Abstrakty

EN

The rotating machines with overhung rotors form a broad class of devices used in many types of industry. For this kind of rotor machine in the paper, there is investigated an inf luence of dynamic and static unbalance of a rotor, parallel and angular misalignments of shafts, and inner anisotropy of rigid couplings on system dynamic responses. The considerations are performed through a hybrid structural model of the machine rotor-shaft system, consisting of continuous beam finite elements and discrete oscillators. Numerical calculations are carried out for parameters characterizing a heavy blower applied in the mining industry. The main goal of the research is to assess the sensitivity of the imperfections mentioned above on excitation severity of rotor-shaft lateral vibrations and motion stability of the machine in question.

Słowa kluczowe

EN

overhung rotor-shaft; lateral vibrations; stability analysis; sensitivity analysis; system imperfection

PL

wał wirnika; drgania boczne; analiza stabilności; analiza wrażliwości; niedoskonałość systemu

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2021
• Tom: Vol. 69, nr 6
• Strony: art. no. e137987
• Opis fizyczny: Bibliogr. 21 poz., il. fot., wykr.

Twórcy

autor

Szolc Tomasz

• Institute of Fundamental Technological Research of the Polish Academy of Sciences, ul. Pawińskiego 5B, 02-106 Warsaw, Poland

• https://orcid.org/0000-0002-2383-5073

autor

Konowrocki Robert

• Institute of Fundamental Technological Research of the Polish Academy of Sciences, ul. Pawińskiego 5B, 02-106 Warsaw, Poland

Bibliografia

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• [5] ISO 1940/1, ”Balance Quality Requirements of Rigid Rotors”, International Organization for Standardization, 2003.
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• [21] Ch. Fu, Y. Xu, Y. Yang, K. Lu, F. Gu, and A. Ball, “Response analysis of an accelerating unbalanced rotating system with both random and interval variables”, J. Sound Vib., vol. 466, p. 115047, 2020. https://doi.org/10.1016/j.jsv.2019.115047.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).