Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Three-dimensional Rotordynamic Analysis Considering Bearing Support Effects

베어링 지지 효과를 고려한 3차원 로터동역학 해석

  • 박효근 (경상대학교 기계항공공학부 및 항공기부품기술연구소) ;
  • 김동만 (경상대학교 대학원 기계항공공학부) ;
  • 김유성 (경상대학교 대학원 기계항공공학부) ;
  • 김명국 (삼성테크윈(주) 파워시스템연구소) ;
  • 전승배 (삼성테크윈(주) 파워시스템연구소) ;
  • 김동현 (경상대학교 기계항공공학부 및 항공기부품기술연구소)
  • Published : 2007.02.20
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Abstract

In this study, three-dimensional rotordynamic analyses have been conducted using equivalent beam, hybrid and full three-dimensional models. The present computational method is based on the general finite element method with rotating gyroscopic effects of the rotor system. General purpose commercial finite element code, SAMCEF which includes practical rotordynamics module with various types of rotor analysis tools and bearing elements is applied. For the purpose of numerical verification, comparison study for a benchmark rotor model with support bearings is performed first. Detailed finite element models based on three different modeling concepts are constructed and then computational analyses are conducted for the realistic and complex three-dimensional rotor system. The results for rotor stability and mass unbalance response are presented and compared with the experimental vibration test data conducted herein.

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References

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