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Flow Induced Vibration of Power and Process Plant Components: A Practical Workbook

M. K. Au-Yang, Ph.D., P.E.
M. K. Au-Yang, Ph.D., P.E.
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ASME Press
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Under normal conditions, axial flow-induced vibrations of power and process plant components are of much less concern than cross-flow-induced vibrations with comparable flow velocities and fluid densities. Because of this and because industry research effort over the past 20 years has been focused on cross-flow-induced vibration, axial flow-induced vibration is often overlooked in the industry. A detailed review of the operating history of commercial nuclear power, in which detailed documentation of every flow-induced vibration incident is required by law and is available to the public, revealed that in the last 40 years, axial flow-induced vibration has caused as much monetary loss to the industry as cross-flow-induced fluid-elastic instability and vortex-induced vibration combined.

In the absence of narrow flow channels, axial flow-induced vibration can be estimated by three different methods:

1) The acceptance integral method developed in Chapter 8 for parallel-flow-induced vibration.

2) Equation of Wambsganss and Chen (1971) which estimates the minimum response of a rod or a tube subject to axial flow,  
3) Paidoussis' (1981) equation, which estimate the upper bound responses,  
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