Original scientific paper

https://doi.org/10.31803/tg-20220920172008

Unbalance Response Analysis of a Rotor Kit with Two Identical Discs Located Between Bearings

Marko Katinić ; Mechanical Engineering Faculty, University of Slavonski Brod, Trg I. B. Mažuranić 2, 35000 Slavonski Brod, Croatia
Josip Kolar ; Mechanical Engineering Faculty, University of Slavonski Brod, Trg I. B. Mažuranić 2, 35000 Slavonski Brod, Croatia
Pejo Konjatić orcid.org/0000-0002-1516-3027 ; Mechanical Engineering Faculty, University of Slavonski Brod, Trg I. B. Mažuranić 2, 35000 Slavonski Brod, Croatia
Mladen Bošnjaković orcid.org/0000-0001-9882-585X ; Technical Department, University of Slavonski Brod, Trg I. B. Mažuranić 2, 35000 Slavonski Brod, Croatia

Abstract

In this paper, the dynamic behavior of a rotor kit with two identical disks located between the plain bearings was analyzed. Modal and harmonic analysis of this rotor kit configuration were performed in the Ansys software package. To calibrate the bearing parameters (stiffness and damping) in the numerical model, experimental measurements of the rotor kit with a disc mounted at the midspan of the shaft were performed. As a result of modal analysis, natural frequencies and models were obtained. Using the Campbell’s diagram, the critical speeds and the influence of the gyroscopic effects on the natural frequencies were determined. The responses of the rotor kit to different unbalance distributions were considered by harmonic analysis.

Keywords

Campbell diagram; critical speed; harmonic analysis; modal analysis; rotor kit; unbalance

Hrčak ID:

306111

URI

https://hrcak.srce.hr/306111

Publication date:

15.9.2023.

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