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Some experimental aspects of the flow induced vibration of a cantilever mounted across two streams of air at right angles

Published online by Cambridge University Press:  04 July 2016

B. A Jubran
B. A Jubran*
Affiliation:
Department of Mechanical Engineering University of Jordan Amman
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Abstract

Some of the experimental features of the dynamic response of a cantilever subjected to two streams of air at right angles to each other are reported. The cantilever is mounted across a mainstream flow while subjected to another jet injected parallel to the test cylinder.

The dimensionless vibration displacement amplitude was measured in the transverse direction (lift force direction) as well as in the streamwise direction (drag force direction) while varying the secondary jet flow velocity. It was found that in the vicinity of the cylinder a secondary jet can be used to reduce the dimensionless transverse vibration displacement amplitude in the lock-in region and increase it outside the lock-in region. The effect of jet injection on the streamwise direction vibration is to increase it for all reduced velocities considered.

Type
Research Article
Information
The Aeronautical Journal , Volume 96 , Issue 956 , July 1992 , pp. 240 - 242
Copyright
Copyright © Royal Aeronautical Society 1992 

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