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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Effect of Axial Loads on Natural Frequencies of Timoshenko Beam

축하중이 티모센코 보의 고유진동수에 미치는 영향

  • 구교남 (울산대학교 기계공학부 항공우주)
  • Received : 2011.04.11
  • Accepted : 2011.05.16
  • Published : 2011.06.20
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Abstract

This paper addresses the effect of transverse shear deformation and rotary inertia on the natural frequency of beams under axial loads. It has been reported in the author's paper using a finite element analysis that the Timoshenko effect in a rotating disk deceases and then increases again with increasing rotation speed. To validate the phenomenon, the simply-supported beams under uniform tension are selected in this study since they have exact solutions in vibration problem. The results show that the axial tension in beams would not make the Timoshenko effect decrease monotonically but could make the effect increase again unlike the results reported in the other studies for beams.

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References

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