탄성지지된 밸브 배관계의 강제진동 특성

Forced Vibration Analysis of Elastically Restrained Valve-pipe System

  • 발행 : 2012.08.31

초록

The forced vibration response characteristics of a elastically restrained pipe conveying fluid with attached 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 attached mass and spring constant on the forced vibration characteristics of pipe at conveying fluid are studied. The forced deflection response of pipe with attached mass due to the variation of fluid velocity is also presented. The deflection response is the mid-span deflection of the pipe. The dimensionless forcing frequency is the range from 0 to 16 which is the first natural frequency of the pipe.

키워드

참고문헌

  1. Paidoussis, M. P., "Fluid-Structure Interactions (Volume 1)", Academic Press, 1998.
  2. Son, I. S., Hur, K. D. and Gal, Y. M., "Dynamic Instability of Elastically Restrained Valve-pipe System", Journal of KSMPE, Vol. 9, No. 5, pp. 90-95, 2010.
  3. Son, I. S., Cho, J. R. and Yoon, H. I., "Effects of Attached Mass on Stability of Pipe Conveying Fluid with Crack", Transactions of KSNVE, Vol. 17, No. 10, pp. 1002-1009, 2007.
  4. Son, I. S. and Yoon, H. I., "Dynamic Stability of Elastically Restrained Cantilever Pipe Conveying Fluid with Crack", Transactions of KSNVE, Vol. 18, No. 2, pp. 177-184, 2008.
  5. Kang, M. G., "The Influence of Rotary Inertia of Concentrated Masses on the Natural Vibrations of a Clamped-supported Pipe Conveying Fluid", Nuclear Engineering and Design, Vol. 196, pp. 281-292, 2000.
  6. Kim, S. K. and Song, O., "Dynamic Response Analysis of Composite H-type Cross-section Beams", Transactions of KSNVE, Vol. 20, No. 6, pp. 583-592, 2010.
  7. Orhan, S., "Analysis of Free and Forced Vibration of a Cracked Cantilever Beam", NDT&E International, Vol. 40, pp. 443-450, 2007.
  8. Lin. H. P. and Chang, S. C., "Forced Responses of Cracked Cantilever Beams Subjected to a Concentrated Moving Load", International Journal of Mechanical Sciences, Vol. 48, pp. 1456-1463, 2006.