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Abstract

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 influence 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.
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Bibliography

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Authors and Affiliations

Tomasz Szolc
1
ORCID: ORCID
Robert Konowrocki
1
ORCID: ORCID

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

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