Dynamics of fluid-conveying Timoshenko pipes.
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[College Station, Tex.] :
[Texas A&M University],
[2006]
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| Online Access: | Link to OAK Trust copy |
| Abstract: | Structures conveying mass lose stability once the mass exceeds a certain critical velocity. The type of instability observed depends on the nature of the supports that the structure has. If the structure (beam or pipe) is cantilevered (thereby deeming it a non conservative system), "garden-hose-like" flutter instability is observed once a critical velocity is exceeded. When studying the flutter instability of a cantilevered pipe (including shear deformation) by strictly a linear theory, it has been demonstrated through numerical integration that the values of the critical velocity are only valid for small values of the mass ratio (mass of the fluid divided by the total mass) (approximately B [beta] < 0.1 ). This fact is also true if shear deformation is neglected. Also, linear theory predicts the pipe to oscillate unboundedly as time progresses, which is physically impossible. Therefore, shortly after the pipe goes unstable, the linear theory is no longer applicable. If non-linear terms are taken into account from the beginning, it can be shown that the pipe oscillates into a limit cycle. |
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| Item Description: | "Major Subject: Mechanical Engineering" Title from author supplied metadata (automated record created on Sep. 15, 2006.) Vita. Abstract. Electronic resource] by Ryan Curtis Petrus. |
| Format: | Mode of access: World Wide Web. System requirements: World Wide Web access and Adobe Acrobat Reader. |
| Bibliography: | Includes bibliographical references. |