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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Influence of Tip Mass and Moving Mass on Dynamic Behavior of Cantilever Pope with Double-crack

이중크랙을 가진 외팔 파이프의 동특성에 미치는 끝단질량과 이동질량의 영향

  • 손인수 (동의대학교 대학원 기계공학과) ;
  • 윤한익 (동의대학교 기계공학부)
  • Published : 2005.04.01
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Abstract

In this paper a dynamic behavior of a double-cracked cantilever pipe with the tip mass and a moving mass is presented. Based on the Euler-Bernoulli beam theory, the equation of motion is derived by using Lagrange's equation. The influences of the moving mass, the tip mass and double cracks have been studied on the dynamic behavior of a cantilever pipe system by numerical method. The cracks section are represented by the local flexibility matrix connecting two undamaged beam segments. Therefore, the cracks are modelled as a rotational spring. This matrix defines the relationship between the displacements and forces across the crack section and is derived by applying fundamental fracture mechanics theory. We investigated about the effect of the two cracks and a tip mass on the dynamic behavior of a cantilever pipe with a moving mass.

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References

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