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 Composite-VEM Thin-walled Rotating Beam Using GHM Methodology

GHM 기법을 이용한 회전하는 복합재-VEM 박판보의 진동해석

  • 박재용 (고려대학교 대학원 기계공학과) ;
  • 박철휴 (포항공과대학교 기계공학) ;
  • 곽문규 (동국대학교 기계공학) ;
  • 나성수 (고려대학교 공과대학 기계공학과)
  • Published : 2004.07.01
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Abstract

This paper concerns the analytical modeling and dynamic analysis of advanced rotating blade structure implemented by a dual approach based on structural tailoring and viscoelastic material technology. Whereas structural tailoring uses the directionality properties of advanced composite materials, the passive material technology exploits the damping capabilities of viscoelastic material (VEM) embedded into the host structure. The main structure is modeled as a composite thin-walled beam Incorporating a number of nonclassical features such as transverse shear. anisotropy of constituent materials, and rotary inertia etc. The VEM layer damping treatment is modeled by using the Golla-Hughes-McTavish (GHM) method, which is employed to account for the frequency-dependent characteristics of the VEM. The displayed numerical results provide a comprehensive picture of the synergistic implications of both techniques, namely, the tailoring and damping technology on dynamic response of a thin-walled beam structure exposed to external time-dependent excitation.

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References

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