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유체유동을 갖는 회전 외팔 파이프의 동특성에 미치는 끝단질량의 영향

The Influence of Tip-mass on Dynamic Characteristics of Rotating Cantilever Pipe Conveying Fluid

  • 윤한익 (동의대학교 기계산업시스템공학부) ;
  • 최창수 (부산정보대학 기계자동차계열) ;
  • 손인수 (동의대학교 대학원 기계공학과)
  • 발행 : 2003.11.01

초록

The vibrational system of this study is consisted of a rotating cantilever pipe conveying fluid and the tip mass. The equation of motion is derived by using the Lagrange equation. The influences of the rotating angular velocity and the velocity of fluid flow in a cantilever pipe have been studied on the dynamic characteristics of a rotating cantilever pipe by the numerical method. The effects of a tip mass on the dynamic response of a cantilever pipe are also studied. The tip-amplitude and maximum tip-deflection of each direction are directly proportional to the tip mass of the cantilever pipe in steady state. It identifies that the influence of the fluid velocity and the rotating angular velocity of the cantilever pipe give much variation the bending tip-displacement of steady state and the bending tip-displacement of non-steady state, respectively. The influence of the rotating angular velocity gives much the deflection of axial direction.

키워드

참고문헌

  1. Ashley, H. and Haviland, G., 1950, 'Bending Vibrations of a Pipe Line Containing Flowing Fluid,' Journal of Applied Mechanics, Vol. 17, pp. 229-232
  2. 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, pp. 457-486 https://doi.org/10.1098/rspa.1961.0090
  3. Benjamin, T. B., 1961, 'Dynamics of a System of Articulated Pipes Conveying Fluid(II. Experiments),' Proceedings of the Royal Society (London), Series A, Vol. 261, pp. 487-499 https://doi.org/10.1098/rspa.1961.0091
  4. Southwell, R. and Gough, F., 1921, 'The Free Transverse Vibration of Airscrew Blades,' British A.R.C. Reports and Memoranda No. 766
  5. Theodorsen, T., 1935, 'Propeller Vibrations and the Effect of Centrifugal Force,' NACA TN No. 516
  6. Schilhansl, M., 1958, 'Bending Frequency of a Rotating Cantilever Beam,' Journal of Applide Mechanics Trans. Am. Soc. Mech. Engrs., 25, pp. 28-30
  7. Yoo, H., Ryan, R. and Scott, R., 1995, 'Dynamics of Flexible Beams Undergoing Overall Motions,' Journal of Sound and Vibration, 181(2) pp. 261-278 https://doi.org/10.1006/jsvi.1995.0139
  8. Hamdan, M.N. and Al-Bedoor, B.O., 2001, 'Non-Linear Free Vibrations of a Rotating Flexible Arm,' Journal of Sound and Vibration, 242(5) pp. 839-853 https://doi.org/10.1006/jsvi.2000.3387
  9. Fung, E.H.K. and Yau, D.T.W., 2001, 'Vibration Frequencies of a Rotating Flexible Arm Carrying a Moving Mass,' Journal of Sound and Vibration, 241(5) pp. 857-878 https://doi.org/10.1006/jsvi.2000.3332
  10. Park, J. H. and Kim, J. H., 1999, 'Dynamic Analysis of Rotating Curved Beam with a Tip Mass,' Journal of Sound and Vibration, 228(5), pp. 1017-1034 https://doi.org/10.1006/jsvi.1999.2457
  11. Panussis, D.A. and Dimarogonas, A.D., 2000, 'Linear In-Plane And Out-of-Plane Lateral Vibrations of a Horizontally Rotating Fluid-Tube Cantilever,' Journal of Fluids and Structures, Vol. 14, pp. 1-24 https://doi.org/10.1006/jfls.1999.0224