Strain gauges are placed at two locations on a wing that is being tested in a wind

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Strain gauges are placed at two locations on a wing that is being tested in a wind tunnel. The first gauge is near the fixed base of the wing and the other gauge is near the free wing tip. Two tests are performed:

(a) the wing vibration is recorded for low velocity laminar flow and (b) for high velocity turbulent flow.

For each of these tests, discuss the following: (i) Describe and compare the time histories you would expect to see recorded by each strain gauge; (ii) Discuss the type of cross-correlation \(R_{X_{1} X_{2}}(\tau)\) you would expect between \(X_{1}\) and \(X_{2}\), the locations of the gauges.

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Related Book For  book-img-for-question

Mechanical Vibration Analysis, Uncertainties, And Control

ISBN: 9781498753012

4th Edition

Authors: Haym Benaroya, Mark L Nagurka, Seon Mi Han

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