Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Influence of Design Parameters on Dynamic Behavior and Frequencies of Cantilever ripe Conveying Fluid

유체유동을 갖는 외팔 파이프의 동특성 및 진동수에 미치는 설계인자의 영향

  • 윤한익 (동의대학교 기계정보산업공학부) ;
  • 손인수 (동의대학교 대학원 기계공학과) ;
  • 박일주 (서울 정수기능대학 카일렉트로닉스과)
  • Published : 2003.11.01
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Abstract

The vibrational system of this study consists of a cantilever pipe conveying fluid, the moving masses upon it and having an attached tip mass. The equation of motion is derived by using Lagrange's equation. The influences of the velocity and the inertia force of the moving mass and the velocities of fluid flow in the pipe have been studied on the dynamic behavior and the natural frequency of a cantilever pipe by numerical method. The deflection of the cantilever pipe conveying fluid is increased due to the tip mass and rotary Inertia. After the moving mass passed upon the cantilever pipe, the amplitude of pipe is influenced by energy variation when the moving mass fall from the cantilever pipe. As the moving mass increase, the frequency of the cantilever pipe conveying fluid is increased. The rotary inertia of the tip mass influences much on the higher frequencies and vibration mode.

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References

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