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

  • 제22권11호
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  • Pages.1049-1056
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  • 2012
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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크랙을 가진 밸브 배관계의 강제진동 특성

Characteristics of Forced Vibration of Valve-pipe Systems with a Crack

  • Son, In-Soo (Mechanical Engineering, Dong-eui University) ;
  • Kim, Chang-Ho (Mechanical Engineering, Dong-eui University) ;
  • Cho, Jeong-Rae (Department of Car-electronics, Korea Polytechnic VI collage Daseong Campus)
  • 투고 : 2012.05.18
  • 심사 : 2012.10.17
  • 발행 : 2012.11.20
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초록

The forced vibration response characteristics of a cracked pipe conveying fluid with a concentrated mass are investigated in this paper. Based on the Euler-Bernoulli beam theory, the equation of motion is derived by using Hamilton's principle. The effects of concentrated mass and fluid velocity on the forced vibration characteristics of a cracked pipe conveying fluid are studied. The deflection response is the mid-span deflection of a cracked pipe conveying fluid. As fluid velocity and crack depth are increased, the resonance frequency of the system is decreased. This study will contribute to the decision of optimum fluid velocity and crack detection for the valve-pipe systems.

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참고문헌

  1. Benjamin, T. B., 1961, Dynamics of a System of Articulated Pipes Conveying Fluid(I. Theory), Proceedings of the Royal Society(London), Series A, Vol. 261, No. 1307, pp. 457-486. https://doi.org/10.1098/rspa.1961.0090
  2. Son, I. S., Cho, J. R. and Yoon, H. I., 2007, Effects of Attached Mass on Stability of Pipe Conveying Fluid with Crack, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 17, No. 10, pp. 1002-1009. https://doi.org/10.5050/KSNVN.2007.17.10.1002
  3. Hur, K. D., Son, I. S. and Lee, S. C., 2012, Stability of Elastically Restrained Valve-pipe System with Crack, International Journal of Modern Physics: Conference Series, Vol. 6, No. 1, pp. 373-378. https://doi.org/10.1142/S2010194512003467
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