한국전산구조공학회:학술대회논문집 (Proceedings of the Computational Structural Engineering Institute Conference)

한국전산구조공학회 (Computational Structural Engineering Institute of Korea)
권호 표지

크랙을 가진 유체유동 파이프의 안정성 및 동특성 해석

Stability and Dynamic Behavior of Cracked Pipe Conveying Fluid

  • 윤한익 (동의대학교 기계공학부) ;
  • 손인수 (동의대학교 산업기술개발연구소) ;
  • 안성진 (동의대학교 기계공학부)
  • 발행 : 2006.04.01
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초록

In this paper a dynamic behavior(natural frequency) of a cracked simply supported pipe conveying fluid is presented. In addition, an analysis of the buckling instability of a cracked pipe conveying fluid subjected to a follower compressive load is presented. Based on the Euler-Bernouli beam theory, the equation of motion can be constructed by using the Lagrange's equation. The crack section is represented by a local flexibility matrix connecting two undamaged beam segments. TI1e crack is assumed to be in the first mode of fracture and to be always opened during the vibrations.

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