한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)
- 한국정밀공학회 2004년도 추계학술대회 논문집
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- Pages.174-179
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- 2004
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- 2005-8446(pISSN)
유체 이송 연직 외팔송수관의 동적안정성에 미치는 중력 효과
Gravitational Effect on Dynamic Stability of a Vertical Cantilevered Pipe Conveying Fluid
초록
The paper deals with gravitational effect on dynamic stability of a cantilevered pipe conveying fluid. The eigenvalue branches and modes associated with flutter of cantilevered pipes conveying fluid are fully investigated. Governing equations of motion are derived by extended Hamilton's principle, and the solutions are sought by Galerkin's method. Root locus diagrams are plotted for different values of mass ratio of the pipe, and the order of branch in root locus diagrams is defined. The flutter modes of the pipe at the critical flow velocities are drawn at every one of the twelfth period. The transference of flutter-type instability from one eigenvalue branches to another is investigated thoroughly.
키워드