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http://dx.doi.org/10.5293/KFMA.2009.12.3.026

Critical Speed Analysis of a Small Gas Turbine Rotor  

Kim, Young-Cheol (한국기계연구원)
Ha, Jin-Woong ((주)두산중공업)
Myung, Ji-Ho ((주)두산중공업)
Publication Information
The KSFM Journal of Fluid Machinery / v.12, no.3, 2009 , pp. 26-30 More about this Journal
Abstract
This paper predicts the critical speeds of a 5MW industrial gas turbine by using commercial rotordynamic tool, DYNAMICS 4.3. The gas turbine is operated at 12,975 rpm on squeeze film dampers. The stiffness of the squeeze film dampers are estimated. The critical speeds of the gas turbine rotor are calculated to have a sufficient separation margin (2%) from the 1st bending mode and pass over 2 rigid body modes below 4,000 cpm. This paper discussed the coupling effects on the dynamic response of the gas turbine.
Keywords
Gas turbine; Rotordynamics; Critical speed;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김영철, 이동환, 심재호, 2006, '가스터빈엔진(GTE)의 동적설계기술현황,' 유체기계저널, 9권 5호, pp. 60～63   과학기술학회마을   DOI