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

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Dynamic Behavior of Simply Supported Fluid Flow Pipe with Crack and Moving Mass

크랙과 이동질량을 가진 유체유동 단순지지 파이프의 동특성에 관한 연구

  • 윤한익 (동의대학교 기계정보산업공학부) ;
  • 진종태 (부산정보대학 기계자동차계열) ;
  • 손인수 (동의대학교 대학원 기계공학과)
  • Published : 2004.04.01
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Abstract

In this paper, studied about the effect of open crack and the moving mass on the dynamic behavior of simply supported pipe conveying fluid. The equation of motion is derived by using Lagrange's equation. The influences of the velocity of moving mass, the velocity of fluid flow and a crack have been studied on the dynamic behavior of a simply supported pipe system by numerical method. The crack section is represented by a local flexibility matrix connecting two undamaged beam segments. Therefore, the crack is modelled as a rotational spring. Totally, as the velocity of fluid flow is increased, the mid-span deflection of simply supported pipe conveying fluid is increased. The position of the crack is located in the middle point of the pipe, the mid-span deflection of simply supported pipe presents maximum deflection.

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References

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