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 Control of Pretwisted Composite Thin-walled Rotating Beam with Non-uniform Cross Section

초기 비틀림각을 갖는 비균일 박판보 블레이드의 진동제어

  • 임성남 (고려대학교 대학원 기계공학과) ;
  • 나성수 (고려대학교 공과대학 기계공학과)
  • Published : 2004.06.01
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Abstract

This paper addresses the dynamic modeling and closed-loop eigenvibration analysis of composite rotating pretwisted fan blade modeled as non-uniform thin-walled beam with bi-convex cross-section fixed at the certain presetting angle and incorporating piezoelectric induced damping capabilities. The blade model incorporates non-classical features such as transverse shear, rotary inertia and includes the centrifugal and Coriolis force field. A velocity feedback control law relating the piezoelectiriccally induced transversal bending moment at the beam tip with the appropriately selected kinematical response quantity is used and the beneficial effects upon the closed loop eigenvibration of the blade are highlighted.

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References

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