0

Full Content is available to subscribers

Subscribe/Learn More  >

Overview of Vibro-Impact Dynamics of Pipes Conveying Fluids and the Problem of Fluid-Elastic Instability

[+] Author Affiliations
Raouf A. Ibrahim

Wayne State University, Detroit, MI

Paper No. PVP2009-77057, pp. 127-137; 11 pages
doi:10.1115/PVP2009-77057
From:
  • ASME 2009 Pressure Vessels and Piping Conference
  • Volume 4: Fluid-Structure Interaction
  • Prague, Czech Republic, July 26–30, 2009
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4367-3 | eISBN: 978-0-7918-3854-9
  • Copyright © 2009 by ASME

abstract

This paper presents an overview of vibro-impact dynamics of pipes conveying fluid and the fluid-elastic instability under conditions of turbulence and nonlinearities in nuclear power plants. Different types of modeling, dynamic analysis and stability regimes of pipes conveying fluid restrained by elastic or inelastic barriers are described. The main results reported in the literature will be discussed. The sources of discrepancies in the results will be identified. The main source is primarily the inaccuracy of analytical modeling of the pipe dynamics and impact interaction. The occurrence of flow-induced vibration fretting wear in process equipment such as heat exchangers and steam generators accounts for the majority of failures due to vibration. The fretting wear problem will be first described. This is followed by discussing the computational algorithms used to predict some aspects of vibro-impact dynamics such as the fluid-elastic instability of a tube array by cross flow. Fretting wear prediction requires nonlinear computations of the tube dynamics in which proper modeling of the fluid forcing function plays an important role. Some experimental results pertaining to the vibro-impact motion due to tube-support gaps are discussed with an emphasis on the remote identification of impact forces.

Copyright © 2009 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In