Stability of elastically supported pipes conveying fluid with distributed follower force

被引：0
作者：
机构：
[1] School of Urban Construction, University of South China, Hengyang
来源：
Guo, C.-Q. (guocq@hotmail.com) | 1600年 / Tsinghua University卷 / 31期
关键词：
Critical flow velocity; Distributed follower force; Elastic support; Pipes conveying fluid; Stability;
D O I：
10.6052/j.issn.1000-4750.2012.10.0763
中图分类号：
学科分类号：
摘要：
The dynamic differential equation for pipes under the co-action of a distributed follower force and flowing fluid is established, and then it is discretized with Galerkin method by choosing the modal functions of an elastically supported beam as trial functions. The complex frequency and the critical flow velocity of elastically supported pipes conveying fluid with a distributed follower force are studied via solving eigenvalues. The influences of supporting stiffness, distributed follower force, flow velocity and mass ratio on the vibrations and stability of pipes conveying fluid are analyzed. Numerical results show that the variation of supporting stiffness has a great influence on critical flow velocity, and that the types of stability of pipes conveying fluid will be changed with the supporting stiffness and the direction and magnitude of the distributed follower force.
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页码：234 / 238+256
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