[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5050/KSNVN.2003.13.8.598

Coupled Unbalance Response Analyses of a Geared Two-shaft Rotor-bearing System

이안성 (한국기계연구원)
하진웅 (㈜센추리 기술연구소)

Publication Information

Transactions of the Korean Society for Noise and Vibration Engineering / v.13, no.8, 2003 , pp. 598-604 More about this Journal

Abstract

In this paper a general solution method is presented to obtain the unbalance response orbit from the finite element based equations of motion of a gear-coupled two-shaft rotor-bearing system, whose shafts rotate at their different speeds from each other. Particularly, are proposed analytical solutions of the maximum and minimum radii of the orbit. The method has been applied to analyze the unbalance response of a 800 refrigeration-ton turbo-chiller rotor-bearing system having a bull-pinion speed increasing gear. Bumps in the unbalance response of the driven high speed compressor rotor system have been observed at the first torsional natural frequency due to the coupling effect of lateral and torsional dynamics. Further, the proposed analytical solutions have agreed well with those obtained by a full numerical approach. The proposed analytical solutions can be generally applied to obtain the maximum and minimum radii of the unbalance response orbits of dual-shaft rotor-bearing systems coupled by bearings as well.

Keywords

Coupled Unbalance Response Analyses; Geared Two-shaft Rotor-bearing System; Maximum and Minimum Radii of Orbit; FE Model; Dual-shaft Rotor-bearing System; Coupled by Bearing;

Citations & Related Records

Times Cited By KSCI : 3 (Citation Analysis)

Reference
Cited By KSCI

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KSCI

Coupled Unbalance Response Analyses of a Geared Two-shaft Rotor-bearing System 기어 전동 2축 로터-베어링 시스템의 연성 불균형 응답해석

Coupled Unbalance Response Analyses of a Geared Two-shaft Rotor-bearing System