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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Vibration Analysis of Rotating Blades with the Cross Section Taper Considering the Pre-twist Angle and the Setting Angle

초기 비틀림각 및 장착 각의 영향을 고려한 단면 테이퍼진 회전 블레이드의 진동해석

  • 이준희 (한양대학교 대학원 기계공학과) ;
  • 유홍희 (한양대학교 기계공학부)
  • Published : 2010.01.20
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Abstract

Equations of chordwise and flapwise bending motions for the vibration analysis of rotating pre-twisted blades having tapered cross section and setting angle are derived by using hybrid deformation variable modeling. The two motions are couples to each other due to the pre-twisted angle of the beam cross section. The derived equations are transformed into dimensionless forms in which dimensionless parameters are identified. The effects of the dimensionless parameters on the modal characteristics of rotating pre-twisted blades having tapered cross section and orientation angle are investigated. The eigenvalue loci veering phenomena are also investigated and discussed in this work.

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References

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Cited by

  1. Vibration Analysis of Rotating Pre-twisted Inward Beams with a Concentrated Mass vol.25, pp.6, 2015, https://doi.org/10.5050/KSNVE.2015.25.6.384