Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Dynamic Instability of Elastically Restrained Valve-pipe System

탄성 지지된 밸브 배관계의 동적 불안정

  • 손인수 (동의대학교 기계공학과) ;
  • 허관도 (동의대학교 기계공학과) ;
  • 갈영민 (동의대학교 대학원 기계공학과)
  • Received : 2010.09.14
  • Accepted : 2010.10.29
  • Published : 2010.10.30
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Abstract

The dynamic instability and natural frequency of elastically restrained pipe conveying fluid with the attached mass are investigated in this paper. Based on the Euler-Bernoulli beam theory, the equation of motion is derived by using extended Hamilton's Principle. The influence of attached mass and its position on the dynamic instability of a elastically restrained pipe system is presented. Also, the critical flow velocity for the flutter and divergence due to the variation in the position and stiffness of supported spring is studied. Finally, the critical flow velocities and stability maps of the pipe conveying fluid with the attached mass are obtained by changing the parameters.

Keywords

References

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