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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Free Vibration Analysis of Al Cantilever Square Plates with a Brass Inclusion

황동 개재물이 있는 Al 외팔형 정사각판의 자유진동해석

  • 이윤복 (충남대학교 대학원 기계설계공학과) ;
  • 이영신 (충남대학교 기계설계공학과) ;
  • 이세훈 (충남대학교 대학원 기계설계공학과)
  • Published : 2005.12.01
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Abstract

The free vibration characteristics of Al cantilever square plates with a brass inclusion were analyzed experimentally and numerically The experimentally obtained natural frequencies and mode shapes were compared with the FEM analysis results. The impulse exciting method was used for experiment and ANSYS software package was used for FEM analysis. The natural frequencies obtained iron experiment and numerical analysis matched within $0\%$. It was found that the natural frequencies of the Al cantilever square plates with a brass inclusion decrease as the size of inclusion increases. For the third mode shape, comparing the nodal line of the Al plate and the Al plate with a inclusion, the mode shape showed the reversed quadratic curve. The natural frequencies of inclusion plate were decreased as the location of inclusion moves from the clamped edge to the tree edge.

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References

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